ArcelorMittal

Luxembourg

Back to Profile

1-100 of 2,576 for ArcelorMittal and 12 subsidiaries Sort by
Query
Aggregations
IP Type
        Patent 2,408
        Trademark 168
Jurisdiction
        World 1,241
        United States 678
        Canada 557
        Europe 100
Owner / Subsidiary
[Owner] ArcelorMittal 2,213
ArcelorMittal Investigacion y Desarrollo SL 209
ArcelorMittal France 86
ArcelorMittal Bissen & Bettembourg S.A. 28
ArcelorMittal Flat Carbon Europe SA 14
See more
Date
New (last 4 weeks) 59
2025 June (MTD) 9
2025 May 58
2025 April 11
2025 March 23
See more
IPC Class
C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon 752
C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese 701
C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium 687
C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips 615
C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals 615
See more
NICE Class
06 - Common metals and ores; objects made of metal 160
40 - Treatment of materials; recycling, air and water treatment, 51
42 - Scientific, technological and industrial services, research and design 32
12 - Land, air and water vehicles; parts of land vehicles 25
09 - Scientific and electric apparatus and instruments 12
See more
Status
Pending 420
Registered / In Force 2,156
  1     2     3     ...     26        Next Page

1.

METHOD FOR CONTROLLING THE STIRRING OF MOLTEN METAL IN A STEELMAKING FURNACE AND ASSOCIATED STEEL PRODUCTION INSTALLATION

      
Application Number IB2023061971
Publication Number 2025/114746
Status In Force
Filing Date 2023-11-28
Publication Date 2025-06-05
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Stechmann, Guillaume
  • Sanchez, Mathieu
  • Brosse, Guillaume
  • Huber, Jean Christophe

Abstract

The method for controlling the stirring within a vessel (22) of a steelmaking furnace (20), comprising a metal bath (1) comprising molten metal (3) and a layer of slag (5), the method (100) comprising: - measuring at least two parameters representative of the metal bath (1) contained within the vessel (22) during stirring; - detecting, based on the measurement of the at least two parameters, the formation of an open-eye (8) in the slag layer (5); - adapting the stirring based on the detection of the formation of an open-eye (8); wherein the at least two parameters comprise a visual parameter measured on images of the slag layer (5) captured during stirring and a mechanical parameter representative of mechanical waves generated within the vessel (22) during stirring.

IPC Classes  ?

  • C21C 5/46 - Details or accessories
  • C21C 7/072 - Treatment with gases
  • F27B 3/28 - Arrangement of controlling, monitoring, alarm or like devices
  • F27D 3/16 - Introducing a fluid jet or current into the charge
  • F27D 19/00 - Arrangement of controlling devices
  • F27D 21/02 - Observation or illuminating devices
  • F27D 27/00 - Stirring devices for molten material
  • C21C 5/52 - Manufacture of steel in electric furnaces

2.

METHOD FOR MANUFACTURING A HOT STAMPED PART AND ASSOCIATED HOT STAMPED PART

      
Application Number IB2023061952
Publication Number 2025/114745
Status In Force
Filing Date 2023-11-28
Publication Date 2025-06-05
Owner ARCELORMITTAL (Luxembourg)
Inventor Philippot, Clément

Abstract

Method for manufacturing a hot stamped part and hot stamped, wherein the hot stamped part is manufactured by hot stamping a steel sheet comprising C : 0.10 - 0.4 %, Mn : 1.0 – 11 %, Si : 0.2 – 2.0 %, Cr ≤ 2.0%, Mo ≤ 0.5 %, Nb ≤ 0.1 %, Al ≤ 0.10 %, Ti : 0.01 - 0.1 %, B : 0.0005 - 0.005 %, P ≤ 0.02 %, S ≤ 0.04 %, N ≤ 0.01 %, Ni ≤ 1.0%, Cu ≤ 1.0%, heating said steel sheet above Ac3, stamping said steel sheet above MS-start, the temperature at which martensite starts to form for said steel sheet, applying to said sheet a deformation, expressed in equivalent plastic strain, which does not exceed 1.0 and which locally at least is greater than or equal to 0.4.

IPC Classes  ?

  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/38 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
  • C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
  • C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
  • C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
  • C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
  • C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
  • C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
  • C22C 38/48 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
  • C22C 38/50 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
  • C22C 38/54 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
  • C22C 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 7/13 - Modifying the physical properties of iron or steel by deformation by hot working
  • C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/673 - Quenching devices for die quenching
  • C21D 1/02 - Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
  • C21D 1/18 - HardeningQuenching with or without subsequent tempering
  • B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
  • B21D 22/02 - Stamping using rigid devices or tools

3.

A METHOD FOR MANUFACTURING PRESS-HARDENED A STEEL PART PROVIDED WITH AN AL-BASED COATING AND CORRESPONDING STEEL SHEET

      
Application Number IB2024061936
Publication Number 2025/114913
Status In Force
Filing Date 2024-11-27
Publication Date 2025-06-05
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Rachiele, Lydia
  • Grigorieva, Raisa

Abstract

A method to manufacture a press hardening part comprising the following steps: A) Providing a coated steel sheet (4), comprising a base steel for heat treatment (1), coated with an aluminium based metallic coating (2), B) Applying a surface treatment (3) on the coated steel sheet (4) with an aqueous solution to form a wet film having a thickness from 0.5 to 6.0 pm, said aqueous solution having a mass concentration in chromium from 1.0 to 30.0 g/L and a mass concentration in phosphorous from 0.8 to 26.0 g/L, C) Drying said wet film to obtain a treated coated steel sheet (5), D) Trimming or cutting said treated steel sheet (5) into a blank, E) Heating said blank in a furnace at a temperature set from 850 to 950°C, F) Transferring said hot blank into a press tool, G) Forming said hot blank into a part and press hardening said part into a press-hardened part.

IPC Classes  ?

  • C23C 2/12 - Aluminium or alloys based thereon
  • C23C 2/26 - After-treatment
  • C23C 22/07 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing phosphates
  • C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
  • C21D 1/673 - Quenching devices for die quenching

4.

METHOD FOR CONTROLLING THE STIRRING OF MOLTEN METAL IN A STEELMAKING FURNACE AND ASSOCIATED STEEL PRODUCTION INSTALLATION

      
Application Number IB2024061845
Publication Number 2025/114876
Status In Force
Filing Date 2024-11-26
Publication Date 2025-06-05
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Stechmann, Guillaume
  • Sanchez, Mathieu
  • Brosse, Guillaume
  • Huber, Jean Christophe

Abstract

The method for controlling the stirring within a vessel (22) of a steelmaking furnace (20), comprising a metal bath (1) comprising molten metal (3) and a layer of slag (5), the method (100) comprising: - measuring at least two parameters representative of the metal bath (1) contained within the vessel (22) during stirring; - detecting, based on the measurement of the at least two parameters, the formation of an open-eye (8) in the slag layer (5); - adapting the stirring based on the detection of the formation of an open-eye (8); wherein the at least two parameters comprise a visual parameter measured on images of the slag layer (5) captured during stirring and a mechanical parameter representative of mechanical waves generated within the vessel (22) during stirring.

IPC Classes  ?

  • C21C 5/46 - Details or accessories
  • C21C 7/072 - Treatment with gases
  • F27B 3/28 - Arrangement of controlling, monitoring, alarm or like devices
  • F27D 3/16 - Introducing a fluid jet or current into the charge
  • F27D 19/00 - Arrangement of controlling devices
  • F27D 21/02 - Observation or illuminating devices
  • F27D 27/00 - Stirring devices for molten material
  • C21C 5/52 - Manufacture of steel in electric furnaces

5.

HIGH BENDABILITY PRESS-HARDENED STEEL PART AND METHOD OF MANUFACTURING THE SAME

      
Application Number IB2023062112
Publication Number 2025/114756
Status In Force
Filing Date 2023-12-01
Publication Date 2025-06-05
Owner ARCELORMITTAL (Luxembourg)
Inventor Philippot, Clément

Abstract

intercoatinterintercoatcoat) being above or equal to 70%.

IPC Classes  ?

  • C22C 38/38 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
  • C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
  • C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 7/13 - Modifying the physical properties of iron or steel by deformation by hot working
  • C21D 1/673 - Quenching devices for die quenching
  • C21D 1/02 - Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
  • C23C 2/12 - Aluminium or alloys based thereon
  • C23C 2/28 - Thermal after-treatment, e.g. treatment in oil bath
  • C23C 2/40 - PlatesStrips
  • C23C 2/02 - Pretreatment of the material to be coated, e.g. for coating on selected surface areas

6.

DEVICE FOR HEAT TRANSFER

      
Application Number IB2023061913
Publication Number 2025/114741
Status In Force
Filing Date 2023-11-27
Publication Date 2025-06-05
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Salame, Sarah
  • Gardin, Pascal
  • Gauthier, Ségolène
  • Borean, Jean-Luc
  • Griffay, Gérard
  • Bansal, Akshay
  • Barros Lorenzo, José
  • Norbert, Raphaël
  • Lehmann, Jean
  • Boissiere, Benjamin

Abstract

A device for heat transfer comprising: - a chamber including a fluidized bed of solid particles, the solid particles exchanging heat with a metal semi-product, the solid particles circulating along a circulation direction, - a gas injector to inject gas within the chamber, - a heat exchanger having a circulating transfer medium, the heat exchanger being in contact with the fluidized bed so that the solid particles exchange heat with the transfer medium, - means for gathering scale particles released from said metal semi-product into said chamber, - means for removing scale particles from said chamber. The invention also relates to a method of removing scale from a device for heat transfer related to the invention.

IPC Classes  ?

  • C21D 1/53 - Heating in fluidised beds
  • F27B 15/00 - Fluidised-bed furnacesOther furnaces using or treating finely-divided materials in dispersion
  • C21D 1/84 - Controlled slow cooling
  • C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
  • F27D 99/00 - Subject matter not provided for in other groups of this subclass
  • F28D 13/00 - Heat-exchange apparatus using a fluidised bed
  • F27D 17/00 - Arrangements for using waste heatArrangements for using, or disposing of, waste gases

7.

A METHOD FOR MANUFACTURING PRESS-HARDENED A STEEL PART PROVIDED WITH AN AL-BASED COATING AND CORRESPONDING STEEL SHEET

      
Application Number IB2023061926
Publication Number 2025/114742
Status In Force
Filing Date 2023-11-27
Publication Date 2025-06-05
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Rachiele, Lydia
  • Grigorieva, Raisa

Abstract

A method to manufacture a press hardening part comprising the following steps: A) Providing a coated steel sheet (4), comprising a base steel for heat treatment (1), coated with an aluminium based metallic coating (2), B) Applying a surface treatment (3) on the coated steel sheet (4) with an aqueous solution to form a wet film having a thickness from 0.5 to 6.0 µm, said aqueous solution having a mass concentration in chromium from 1.0 to 30.0 g/L and a mass concentration in phosphorous from 0.8 to 26.0 g/L, C) Drying said wet film to obtain a treated coated steel sheet (5), D) Trimming or cutting said treated steel sheet (5) into a blank, E) Heating said blank in a furnace at a temperature set from 850 to 950°C, F) Transferring said hot blank into a press tool, G) Forming said hot blank into a part and press hardening said part into a press-hardened part.

IPC Classes  ?

  • C23C 2/12 - Aluminium or alloys based thereon
  • C23C 2/26 - After-treatment
  • C23C 22/07 - Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH < 6 containing phosphates
  • C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and

8.

METHOD FOR MANUFACTURING A HOT STAMPED PART AND ASSOCIATED HOT STAMPED PART

      
Application Number IB2024061788
Publication Number 2025/114857
Status In Force
Filing Date 2024-11-25
Publication Date 2025-06-05
Owner ARCELORMITTAL (Luxembourg)
Inventor Philippot, Clément

Abstract

Method for manufacturing a hot stamped part and hot stamped, wherein the hot stamped part is manufactured by hot stamping a steel sheet comprising C : 0.10 - 0.4 %, Mn : 1.0 – 11 %, Si : 0.2 – 2.0 %, Cr : 0.15% - 2.0%, Mo ≤ 0.5 %, Nb ≤ 0.1 %, Al ≤ 0.10 %, Ti : 0.01 - 0.1 %, B : 0.0005 - 0.005 %, P ≤ 0.02 %, S ≤ 0.04 %, N ≤ 0.01 %, Ni ≤ 1.0%, Cu ≤ 1.0%, heating said steel sheet above Ac3, stamping said steel sheet above MS-start, the temperature at which martensite starts to form for said steel sheet, applying to said sheet a deformation, expressed in equivalent plastic strain, which does not exceed 1.0 and which locally at least is greater than or equal to 0.4.

IPC Classes  ?

  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/38 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
  • C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
  • C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
  • C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
  • C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
  • C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
  • C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
  • C22C 38/48 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
  • C22C 38/50 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
  • C22C 38/54 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
  • C22C 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 7/13 - Modifying the physical properties of iron or steel by deformation by hot working
  • C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/673 - Quenching devices for die quenching
  • C21D 1/02 - Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
  • C21D 1/18 - HardeningQuenching with or without subsequent tempering
  • B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
  • B21D 22/02 - Stamping using rigid devices or tools

9.

HIGH BENDABILITY PRESS-HARDENED STEEL PART AND METHOD OF MANUFACTURING THE SAME

      
Application Number IB2024061906
Publication Number 2025/114903
Status In Force
Filing Date 2024-11-27
Publication Date 2025-06-05
Owner ARCELORMITTAL (Luxembourg)
Inventor Philippot, Clément

Abstract

intercoatinter intercoatcoat) being above or equal to 70%.

IPC Classes  ?

  • C22C 38/38 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
  • C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
  • C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 7/13 - Modifying the physical properties of iron or steel by deformation by hot working
  • C21D 1/673 - Quenching devices for die quenching
  • C21D 1/02 - Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
  • C23C 2/12 - Aluminium or alloys based thereon
  • C23C 2/28 - Thermal after-treatment, e.g. treatment in oil bath
  • C23C 2/40 - PlatesStrips
  • C23C 2/02 - Pretreatment of the material to be coated, e.g. for coating on selected surface areas

10.

A TAPHOLE FOR DISCHARGING A METALLURGICAL VESSEL OF AN ELECTRIC ARC FURNACE AND ASSOCIATED FURNACE AND DISCHARGING METHOD

      
Application Number IB2023061744
Publication Number 2025/109357
Status In Force
Filing Date 2023-11-21
Publication Date 2025-05-30
Owner ARCELORMITTAL (Luxembourg)
Inventor Huber, Jean-Christophe

Abstract

The invention relates to a taphole (14) for discharging a metallurgical vessel (12) of an electric arc furnace (10), the taphole (14) comprising a central conduit extending along a longitudinal axis (X) between a top end (32) opening into the vessel (12) and a bottom end (34) for discharging molten steel outside the vessel (12) into an enclosure (24), such as a ladle. The central conduit comprises successively an upstream portion and a downstream portion, and a throttle arranged between the upstream and the downstream portions. The throttle has a constricted cross-section compared to a cross-section of the upstream and downstream portions, so as to generate a Venturi effect when discharging the vessel (12) through the taphole (14).

IPC Classes  ?

  • F27B 3/08 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
  • F27B 3/19 - Arrangement of devices for discharging
  • F27D 3/15 - Tapping equipmentEquipment for removing slag
  • F27D 3/16 - Introducing a fluid jet or current into the charge

11.

A TAPHOLE FOR DISCHARGING A METALLURGICAL VESSEL OF AN ELECTRIC ARC FURNACE AND ASSOCIATED FURNACE AND DISCHARGING METHOD

      
Application Number IB2024061566
Publication Number 2025/109471
Status In Force
Filing Date 2024-11-19
Publication Date 2025-05-30
Owner ARCELORMITTAL (Luxembourg)
Inventor Huber, Jean-Christophe

Abstract

A taphole for discharging a metallurgical vessel of an electric arc furnace and associated furnace and discharging method The invention relates to a taphole (14) for discharging a metallurgical vessel (12) of an electric arc furnace (10), the taphole (14) comprising a central conduit extending along a longitudinal axis (X) between a top end (32) opening into the vessel (12) and a bottom end (34) for discharging molten steel outside the vessel (12) into an enclosure (24), such as a ladle. The central conduit comprises successively an upstream portion and a downstream portion, and a throttle arranged between the upstream and the downstream portions. The throttle has a constricted cross-section compared to a cross-section of the upstream and downstream portions, so as to generate a Venturi effect when discharging the vessel (12) through the taphole (14).

IPC Classes  ?

  • F27B 3/08 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
  • F27B 3/19 - Arrangement of devices for discharging
  • F27D 3/15 - Tapping equipmentEquipment for removing slag
  • F27D 3/16 - Introducing a fluid jet or current into the charge

12.

STEEL PART HAVING HIGH STRENGTH AND HIGH BENDABILITY

      
Application Number IB2025051723
Publication Number 2025/109586
Status In Force
Filing Date 2025-02-18
Publication Date 2025-05-30
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Cobo, Sebastian
  • Salib, Matthieu

Abstract

Steel part having a chemical composition comprising, by weight %, 0.18 ≤ C ≤ 0.27, 0.18 ≤ Si ≤ 0.30, 1.0 ≤ Mn ≤ 1.5, 0.14 ≤ Cr ≤ 0.25, 0.02 ≤ Al ≤ 0.06, 0.02 ≤ Ti ≤ 0.06, 0.0020 ≤ B ≤ 0.0040, 0 ≤ S ≤ 0.008, 0.008 ≤ N ≤ 0.020, the remainder of the composition being iron and unavoidable impurities resulting from the elaboration process, having a microstructure comprising, in surface fraction, 95% or more of martensite, wherein the surface fraction of TiN particles in the skin portion is equal to or greater than 200*10-6 inclusions / mm² and the average equivalent diameter of said TiN particles in the skin portion is equal to or smaller than 2.0 microns.

IPC Classes  ?

  • B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
  • B21D 22/02 - Stamping using rigid devices or tools
  • C21D 1/18 - HardeningQuenching with or without subsequent tempering
  • C21D 1/26 - Methods of annealing
  • C21D 1/673 - Quenching devices for die quenching
  • C23C 2/40 - PlatesStrips
  • C23C 2/06 - Zinc or cadmium or alloys based thereon
  • C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C22C 21/00 - Alloys based on aluminium
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
  • C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
  • C23C 2/12 - Aluminium or alloys based thereon
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
  • C22C 38/24 - Ferrous alloys, e.g. steel alloys containing chromium with vanadium
  • C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum

13.

Method for erecting a transportation structure

      
Application Number 18840120
Status Pending
Filing Date 2022-02-28
First Publication Date 2025-05-29
Owner ArcelorMittal (Luxembourg)
Inventor
  • Sellitto, Giuseppe
  • Gremling, Michaël
  • Di Silvestro, Elena

Abstract

A method for erecting a portion of a transportation structure including a first assembly of tube segments, capable of being placed under low air pressure and through which pods may travel substantially free of air friction, the method including: (a) erecting a substructure including a first plurality of girders forming a first transportation pathway and a plurality of platforms forming a service pathway, the erecting step including conveying with vehicle(s) the girders and platforms along the first transportation pathway, positioning them and having the vehicle(s) return along the service pathway, (b) conveying, with vehicle(s), the tube segments along the first transportation pathway, positioning them and having the vehicle(s) return along the service pathway. A portion of a transportation structure is also provided.

IPC Classes  ?

14.

Steel sheet and high strength press hardened steel part having excellent bending and method of manufacturing the same

      
Application Number 18811133
Grant Number 12312647
Status In Force
Filing Date 2024-08-21
First Publication Date 2025-05-27
Grant Date 2025-05-27
Owner ArcelorMittal (Luxembourg)
Inventor
  • Dumont, Alice
  • Stechmann, Guillaume
  • Lucas, Emmanuel
  • Salib, Matthieu

Abstract

2. This allows to manufacture hot pressed parts having a tensile strength equal to or greater than 1300 MPa and a bending angle normalized to 1.5 mm and measured in the transverse direction strictly greater than 48°.

IPC Classes  ?

  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C21D 1/18 - HardeningQuenching with or without subsequent tempering
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 7/13 - Modifying the physical properties of iron or steel by deformation by hot working
  • C21D 8/00 - Modifying the physical properties by deformation combined with, or followed by, heat treatment
  • C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
  • C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
  • C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
  • C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron

15.

Transportation structure

      
Application Number 18840126
Status Pending
Filing Date 2022-02-28
First Publication Date 2025-05-22
Owner ArcelorMittal (Luxembourg)
Inventor
  • Sellitto, Giuseppe
  • Gremling, Michaël
  • Di Silvestro, Elena

Abstract

A portion of transportation structure including: 1) a substructure including a plurality of piers, a first plurality of girders positioned on at least some of the piers and forming a first transportation pathway, 2) a first assembly of tube segments, capable of being placed under low air pressure and through which pods may travel substantially free of air friction, the first assembly of tube segments been positioned on the first transportation pathway and each tube segment comprising: a) a main tube with legs distributed along the length of the main tube and suitable for the main tube to rest on the substructure on its legs, b) shims positioned in-between the substructure and at least part of the legs, the thickness of each shim been adapted so that the deflection of the substructure between piers is offset.

IPC Classes  ?

  • B65G 51/18 - Adaptations of pipes or tubesPipe or tube joints
  • B60V 3/04 - Land vehicles, e.g. road vehicles co-operating with rails or other guiding means, e.g. with air cushion between rail and vehicle
  • E01B 25/30 - Tracks for magnetic suspension or levitation vehicles

16.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061523
Publication Number 2025/104470
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 %, 0.15% ≤ Manganese ≤ 0.25%, 3.2% ≤ Silicon ≤ 3.8%, 0.7% ≤ Aluminum ≤ 1.3 %, 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 %, 0 % ≤ Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1%, 0% ≤ Titanium ≤ 0.1%, 0% ≤ Vanadium ≤ 0.1%, 0% ≤ Chromium ≤ 1%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Tungsten≤ 0.1%, 0% ≤ Cobalt ≤ 1%, 0% ≤ Arsenic ≤ 0.05%, 0.001% ≤ Calcium ≤ 0.01%, 0% ≤ Copper ≤ 1%,0.001% ≤ Nickel ≤ 0.01, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Lead ≤ 0.2%, 0% ≤ Tin≤ 0.2%, 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current loss in total iron loss less than 33 % when calculated in accordance with Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.630T to 1.65T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

17.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061528
Publication Number 2025/104475
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Leunis, Elke
  • Jacobs, Sigrid
  • Chassang, Xavier

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 %, 0.05% ≤ Manganese ≤ 0.15%, 2.5% ≤ Silicon ≤ 3.1%, 0.26% ≤ Aluminum ≤ 0.7 %, 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 %, 0 % ≤ Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1%, 0% ≤ Titanium ≤ 0.1%, 0% ≤ Vanadium ≤ 0.1%, 0% ≤ Chromium ≤ 1%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Tungsten≤ 0.1%, 0% ≤ Cobalt ≤ 1%, 0% ≤ Arsenic ≤ 0.05%, 0.001% ≤ Calcium ≤ 0.01%, 0% ≤ Copper ≤ 1%, 0% ≤ Nickel ≤ 1%, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Lead ≤ 0.2%, 0% ≤ Tin≤ 0.2%, 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current loss in total iron loss from 35% to 45% when calculated in accordance of Bertotti method.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

18.

A DOUBLE COLD ROLLED NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061529
Publication Number 2025/104476
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Leunis, Elke
  • Jacobs, Sigrid
  • Chassang, Xavier

Abstract

The invention deals with a double cold rolled non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 %, 0.15% ≤ Manganese ≤ 0.3%, 3.2% ≤ Silicon ≤ 3.8%, 0.8% ≤ Aluminum ≤ 1.1%, 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 %, 0 % ≤ Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1%, 0% ≤ Titanium ≤ 0.1%, 0% ≤ Vanadium ≤ 0.1%, 0% ≤ Chromium ≤ 1%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Tungsten≤ 0.1%, 0% ≤ Cobalt ≤ 1%, 0% ≤ Arsenic ≤ 0.05%, 0.001% ≤ Calcium ≤ 0.01%, 0% ≤ Copper ≤ 1%, 0.001% ≤ Nickel ≤ 0.01, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Lead ≤ 0.2%, 0% ≤ Tin≤ 0.2%, 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current loss in total iron loss less than 30% when calculated in accordance of Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.66T to 1.69T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/16 - Ferrous alloys, e.g. steel alloys containing copper
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

19.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061532
Publication Number 2025/104478
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 %, 0.15% ≤ Manganese ≤ 0.2%, 3% ≤ Silicon ≤ 3.6%, 0.7% ≤ Aluminum ≤ 1.3 %, 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 %, 0 % ≤ Nitrogen ≤ 0.09% with 3.85% ≤ Si+Al+Mn ≤ 5.5% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1%, 0% ≤ Titanium ≤ 0.1%, 0% ≤ Vanadium ≤ 0.1%, 0% ≤ Chromium ≤ 1%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Tungsten≤ 0.1%, 0% ≤ Cobalt ≤ 1%, 0% ≤ Arsenic ≤ 0.05%, 0.001% ≤ Calcium ≤ 0.01%, 0% ≤ Copper ≤ 1%, 0% ≤ Nickel ≤ 1%, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Lead ≤ 0.2%, 0% ≤ Tin≤ 0.2%, 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and eddy current loss in total iron loss of 35 to 55% when calculated in accordance with Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.635T to 1.670T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing
  • C22C 38/08 - Ferrous alloys, e.g. steel alloys containing nickel

20.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061534
Publication Number 2025/104480
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Leunis, Elke
  • Jacobs, Sigrid
  • Chassang, Xavier

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.005 %, 0.2% ≤ Manganese ≤ 0.3% 3.1% ≤ Silicon ≤ 3.6%, 0.6% ≤ Aluminum ≤ 1 % 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 % 0 % ≤ Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1% 0% ≤ Titanium ≤ 0.1% 0% ≤ Vanadium ≤ 0.1% 0% ≤ Chromium ≤ 1% 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1% 0% ≤ Cobalt ≤ 1% 0% ≤ Arsenic ≤ 0.05% 0.001% ≤ Calcium ≤ 0.01% 0% ≤ Copper ≤ 1% 0% ≤ Nickel ≤ 1% 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤ Tin≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current loss in total iron loss from 30% to 35% when calculated in accordance of Bertotti method.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
  • C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

21.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061537
Publication Number 2025/104483
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 %, 0.09% ≤ Manganese ≤ 0.15%, 2.5% ≤ Silicon ≤ 3%, 0.1% ≤ Aluminum ≤ 0.5 %, 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 %, 0 % ≤ Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1%, 0% ≤ Titanium ≤ 0.1%, 0% ≤ Vanadium ≤ 0.1%, 0% ≤ Chromium ≤ 1%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Tungsten≤ 0.1%, 0% ≤ Cobalt ≤ 1%, 0% ≤ Arsenic ≤ 0.05%, 0.001% ≤ Calcium ≤ 0.01%, 0% ≤ Copper ≤ 1%, 0% ≤ Nickel ≤ 1%, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Lead ≤ 0.2%, 0% ≤ Tin≤ 0.2%, 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current loss in total iron loss from 35% to 45% when calculated in accordance of Bertotti method.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

22.

METHOD OF PRODUCING STEEL WITH USING STEEL SCRAP IN ELECTRIC ARC FURNACE

      
Application Number IB2023061553
Publication Number 2025/104484
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Stechmann, Guillaume
  • Sanchez, Mathieu
  • Brosse, Guillaume
  • Huber, Jean Christophe

Abstract

Method of producing steel with using steel scrap in electric arc furnace The method of producing steel using an Electrical Arc Furnace (EAF) comprising successively loading a load (L) in the EAF, the load (L) containing steel scrap (SC), energizing the electrodes of the EAF for melting the load (L) and generating a melt (M); introducing a desulphurizing slagging agent in the EAF for generating a desulphurizing slag (S1) above the melt (M) and then removing the desulphurizing slag (S1) from the EAF, and injecting oxygen in the EAF for decarburizing the melt (M).

IPC Classes  ?

23.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061335
Publication Number 2025/104640
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 % 0.18% ≤ Manganese ≤ 0.5% 3.1% ≤ Silicon ≤ 3.8% 0.7% ≤ Aluminum ≤ 1.3 % Phosphorus ≤ 0.15 % Sulfur ≤ 0.006% Nitrogen ≤ 0.09% with 3.85% ≤ Si+Al+Mn ≤ 5.5% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1% 0% ≤ Titanium ≤ 0.1% 0% ≤ Vanadium ≤ 0.1% 0% ≤ Chromium ≤ 1% 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1% 0% ≤ Cobalt ≤ 1% 0% ≤ Arsenic ≤ 0.05% 0.001% ≤ Calcium ≤ 0.01% 0% ≤ Copper ≤ 1% 0% ≤ Nickel ≤ 1% 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤ Tin ≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, less than 34 % when calculated in accordance with Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.60T to 1.65T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

24.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061337
Publication Number 2025/104642
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 % 0.15% ≤ Manganese ≤ 0.25% 2.9% ≤ Silicon ≤ 3.4% 0.8% ≤ Aluminum ≤ 1.1 % Phosphorus ≤ 0.15 % Sulfur ≤ 0.006 % Nitrogen ≤ 0.09% with 3.85% ≤ Si+Al+Mn ≤ 5.5% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1% 0% ≤ Titanium ≤ 0.1% 0% ≤ Vanadium ≤ 0.1% 0% ≤ Chromium ≤ 1% 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1% 0% ≤ Cobalt ≤ 1% 0% ≤ Arsenic ≤ 0.05% 0.001% ≤ Calcium ≤ 0.01% 0% ≤ Copper ≤ 1% 0% ≤ Nickel ≤ 1% 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤ Tin≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, less than 25% when calculated in accordance of Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.625T to 1.690T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
  • C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

25.

A DOUBLE COLD ROLLED NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061340
Publication Number 2025/104645
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Leunis, Elke
  • Jacobs, Sigrid
  • Chassang, Xavier

Abstract

The invention deals with a double cold rolled non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 % 0.2% ≤ Manganese ≤ 0.24% 3.1% ≤ Silicon ≤ 3.5% 0.8% ≤ Aluminum ≤ 1.1% Phosphorus ≤ 0.15 % Sulfur ≤ 0.006% Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1% 0% ≤ Titanium ≤ 0.1% 0% ≤ Vanadium ≤ 0.1% 0% ≤ Chromium ≤ 1% 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1% 0% ≤ Cobalt ≤ 1% 0% ≤ Arsenic ≤ 0.05% 0.001% ≤ Calcium ≤ 0.01% 0% ≤ Copper ≤ 1% 0.001% ≤ Nickel ≤ 0.01 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤ Tin≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, less from 30% to 35% when calculated in accordance of Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.645T to 1.660T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

26.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061341
Publication Number 2025/104646
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 % 0.05% ≤ Manganese ≤ 0.15% 2.5% ≤ Silicon ≤ 3.1% 0.26% ≤ Aluminum ≤ 0.7 % Phosphorus ≤ 0.15 % Sulfur ≤ 0.006% Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1% 0% ≤ Titanium ≤ 0.1% 0% ≤ Vanadium ≤ 0.1% 0% ≤ Chromium ≤ 1% 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1% 0% ≤ Cobalt ≤ 1% 0% ≤ Arsenic ≤ 0.05% 0.001% ≤ Calcium ≤ 0.01% 0% ≤ Copper ≤ 1% 0% ≤ Nickel ≤ 1% 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤ Tin≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, from 35% to 45% when calculated in accordance of Bertotti method.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

27.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061342
Publication Number 2025/104647
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 % 0.17% ≤ Manganese ≤ 0.4% 3% ≤ Silicon ≤ 3.6% 0.7% ≤ Aluminum ≤ 1.3 % Phosphorus ≤ 0.15 % Sulfur ≤ 0.006% Nitrogen ≤ 0.09% with 3.85% ≤ Si+Al+Mn ≤ 5.5% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1% 0% ≤ Titanium ≤ 0.1% 0% ≤ Vanadium ≤ 0.1% 0% ≤ Chromium ≤ 1% 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1% 0% ≤ Cobalt ≤ 1% 0% ≤ Arsenic ≤ 0.05% 0.001% ≤ Calcium ≤ 0.01% 0% ≤ Copper ≤ 1% 0% ≤ Nickel ≤ 1% 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤ Tin≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, less than 25% when calculated in accordance of Bertotti method.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
  • C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

28.

A DOUBLE COLD ROLLED NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061344
Publication Number 2025/104649
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Leunis, Elke
  • Jacobs, Sigrid
  • Chassang, Xavier

Abstract

The invention deals with a double cold rolled non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 % 0.15% ≤ Manganese ≤ 0.3% 3.2% ≤ Silicon ≤ 3.8% 0.8% ≤ Aluminum ≤ 1.1% Phosphorus ≤ 0.15 % Sulfur ≤ 0.006% Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1% 0% ≤ Titanium ≤ 0.1% 0% ≤ Vanadium ≤ 0.1% 0% ≤ Chromium ≤ 1% 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1% 0% ≤ Cobalt ≤ 1% 0% ≤ Arsenic ≤ 0.05% 0.001% ≤ Calcium ≤ 0.01% 0% ≤ Copper ≤ 1% 0.001% ≤ Nickel ≤ 0.01 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤ Tin≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, less than 30% when calculated in accordance of Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.66T to 1.69T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/16 - Ferrous alloys, e.g. steel alloys containing copper
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

29.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061345
Publication Number 2025/104650
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 % 0.30% ≤ Manganese ≤ 0.7% 3% ≤ Silicon ≤ 3.6% 0.4% ≤ Aluminum ≤ 0.8 % 0.05% ≤ Tin≤ 0.15% Phosphorus ≤ 0.15 % Sulfur ≤ 0.006% Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1% 0% ≤ Titanium ≤ 0.1% 0% ≤ Vanadium ≤ 0.1% 0% ≤ Chromium ≤ 1% 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1% 0% ≤ Cobalt ≤ 1% 0% ≤ Arsenic ≤ 0.05% 0.001% ≤ Calcium ≤ 0.01% 0% ≤ Copper ≤ 1% 0% ≤ Nickel ≤ 1% 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, from 25% to 35% when calculated in accordance of Bertotti method.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
  • C22C 38/40 - Ferrous alloys, e.g. steel alloys containing chromium with nickel
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

30.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061346
Publication Number 2025/104651
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Leunis, Elke
  • Jacobs, Sigrid
  • Chassang, Xavier

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 % 0.21% ≤ Manganese ≤ 0.7% 3% ≤ Silicon ≤ 3.6% 0.7% ≤ Aluminum ≤ 1.3 % Phosphorus ≤ 0.15 % Sulfur ≤ 0.006% Nitrogen ≤ 0.09% with 3.85% ≤ Si+Al+Mn ≤ 5.5% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1% 0% ≤ Titanium ≤ 0.1% 0% ≤ Vanadium ≤ 0.1% 0% ≤ Chromium ≤ 1% 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1% 0% ≤ Cobalt ≤ 1% 0% ≤ Arsenic ≤ 0.05% 0.001% ≤ Calcium ≤ 0.01% 0% ≤ Copper ≤ 1% 0% ≤ Nickel ≤ 1% 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤ Tin≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, from 35% to 45% when calculated in accordance of Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.63T to 1.66T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

31.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061347
Publication Number 2025/104652
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 % 0.15% ≤ Manganese ≤ 0.25% 3.2% ≤ Silicon ≤ 3.8% 0.7% ≤ Aluminum ≤ 1.3 % Phosphorus ≤ 0.15 % Sulfur ≤ 0.006 % Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1% 0% ≤ Titanium ≤ 0.1% 0% ≤ Vanadium ≤ 0.1% 0% ≤ Chromium ≤ 1% 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1% 0% ≤ Cobalt ≤ 1% 0% ≤ Arsenic ≤ 0.05% 0.001% ≤ Calcium ≤ 0.01% 0% ≤ Copper ≤ 1% 0.001% ≤ Nickel ≤ 0.01 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤ Tin≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, less than 33 % when calculated in accordance with Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.630T to 1.65T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

32.

A DOUBLE COLD ROLLED NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061350
Publication Number 2025/104655
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Leunis, Elke
  • Jacobs, Sigrid
  • Chassang, Xavier

Abstract

The invention deals with a double cold rolled non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 % 0.1% ≤ Manganese ≤ 0.2% 3.1% ≤ Silicon ≤ 3.6% 0.8% ≤ Aluminum ≤ 1.1% Phosphorus ≤ 0.15 % Sulfur ≤ 0.006% Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1% 0% ≤ Titanium ≤ 0.1% 0% ≤ Vanadium ≤ 0.1% 0% ≤ Chromium ≤ 1% 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1% 0% ≤ Cobalt ≤ 1% 0% ≤ Arsenic ≤ 0.05% 0.001% ≤ Calcium ≤ 0.01% 0% ≤ Copper ≤ 1% 0.001% ≤ Nickel ≤ 0.01 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤ Tin≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, is from 35% to 45% when calculated in accordance of Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.64T to 1.66T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

33.

Method for erecting a transportation structure

      
Application Number 18840140
Status Pending
Filing Date 2022-02-28
First Publication Date 2025-05-22
Owner ArcelorMittal (Luxembourg)
Inventor
  • Sellitto, Giuseppe
  • Gremling, Michaël
  • Di Silvestro, Elena

Abstract

A method for erecting a portion of a transportation structure including a plurality of piers, a plurality of platforms forming a service pathway, a first plurality of girders forming a first assembly of tube segments and a first rooftop transportation pathway, a second plurality of girders forming a second assembly of tube segments and a second rooftop transportation pathway, both assemblies being capable of being placed under low air pressure and through which pods may travel substantially free of air friction, the method including conveying with vehicle(s) the girders and platforms along the first and/or second rooftop transportation pathway, positioning them and having the vehicle(s) return along the service pathway. A portion of a transportation structure is also provided.

IPC Classes  ?

  • E01D 18/00 - Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
  • E01D 21/06 - Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections

34.

Method for erecting a transportation structure

      
Application Number 18840141
Status Pending
Filing Date 2022-02-28
First Publication Date 2025-05-22
Owner ArcelorMittal (Luxembourg)
Inventor
  • Sellitto, Giuseppe
  • Gremling, Michaël
  • Di Silvestro, Elena

Abstract

A method for erecting a portion of a transportation structure including two assemblies of tube segments, capable of being placed under low air pressure and through which pods may travel substantially free of air friction, the method including: (a) erecting a substructure including a first plurality of girders forming a first transportation pathway and a second plurality of girders forming a second transportation pathway, the erecting step including conveying with vehicle(s) the girders along one single transportation pathway, positioning them and having the vehicle(s) return along the other transportation pathway, (b) conveying, with vehicle(s), the tube segments along one single transportation pathway, positioning them and having the vehicle(s) return along the other transportation pathway. A portion of a transportation structure is also provided.

IPC Classes  ?

  • B61B 13/10 - Tunnel systems
  • E01B 25/30 - Tracks for magnetic suspension or levitation vehicles
  • E01B 29/02 - Transporting, laying, removing, or renewing lengths of assembled track, assembled switches, or assembled crossings
  • E01D 21/06 - Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections

35.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061520
Publication Number 2025/104467
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 %, 0.18% ≤ Manganese ≤ 0.5%, 3.1% ≤ Silicon ≤ 3.8%, 0.7% ≤ Aluminum ≤ 1.3 %, 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 %, 0 % ≤ Nitrogen ≤ 0.09%, with 3.85% ≤ Si+Al+Mn ≤ 5.5% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1%, 0% ≤ Titanium ≤ 0.1%, 0% ≤ Vanadium ≤ 0.1%, 0% ≤ Chromium ≤ 1%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Tungsten≤ 0.1%, 0% ≤ Cobalt ≤ 1%, 0% ≤ Arsenic ≤ 0.05%, 0.001% ≤ Calcium ≤ 0.01%, 0% ≤ Copper ≤ 1%, 0% ≤ Nickel ≤ 1%, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Lead ≤ 0.2%, 0% ≤ Tin≤ 0.2%, 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current loss in total iron loss less than 34 % when calculated in accordance with Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.60T to 1.65T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

36.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061521
Publication Number 2025/104468
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Leunis, Elke
  • Jacobs, Sigrid
  • Chassang, Xavier

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.009 %, 0.25% ≤ Manganese ≤ 0.6%, 1% ≤ Silicon ≤ 2.5%, 0.15% ≤ Aluminum ≤ 0.3 %, 0.05% ≤ Tin≤ 0.15%, 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 %, 0 % ≤ Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1%, 0% ≤ Titanium ≤ 0.1%, 0% ≤ Vanadium ≤ 0.1%, 0% ≤ Chromium ≤ 1%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Tungsten≤ 0.1%, 0% ≤ Cobalt ≤ 1%, 0% ≤ Arsenic ≤ 0.05%, 0.001% ≤ Calcium ≤ 0.01%, 0% ≤ Copper ≤ 1%, 0% ≤ Nickel ≤ 1%, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Lead ≤ 0.2%, 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current loss in total iron loss from 35% to 50% when calculated in accordance of Bertotti method.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/08 - Ferrous alloys, e.g. steel alloys containing nickel
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

37.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061522
Publication Number 2025/104469
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 %, 0.15% ≤ Manganese ≤ 0.25%, 2.9% ≤ Silicon ≤ 3.4%, 0.8% ≤ Aluminum ≤ 1.1 %, 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 %, 0 % ≤ Nitrogen ≤ 0.09%,with 3.85% ≤ Si+Al+Mn ≤ 5.5% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1%, 0% ≤ Titanium ≤ 0.1%, 0% ≤ Vanadium ≤ 0.1%, 0% ≤ Chromium ≤ 1%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Tungsten≤ 0.1%, 0% ≤ Cobalt ≤ 1%, 0% ≤ Arsenic ≤ 0.05%, 0.001% ≤ Calcium ≤ 0.01%, 0% ≤ Copper ≤ 1%, 0% ≤ Nickel ≤ 1%, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Lead ≤ 0.2%, 0% ≤ Tin≤ 0.2%, 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current loss in total iron loss less than 25% when calculated in accordance of Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.625T to 1.690T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
  • C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

38.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061524
Publication Number 2025/104471
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 %, 0.15% ≤ Manganese ≤ 0.7%, 3% ≤ Silicon ≤ 3.6%, 0.7% ≤ Aluminum ≤ 1.3 %, 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 %, 0 % ≤ Nitrogen ≤ 0.09% with 3.85% ≤ Si+Al+Mn ≤ 5.5% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1%, 0% ≤ Titanium ≤ 0.1%, 0% ≤ Vanadium ≤ 0.1%, 0% ≤ Chromium ≤ 1%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Tungsten≤ 0.1%, 0% ≤ Cobalt ≤ 1%, 0% ≤ Arsenic ≤ 0.05%, 0.001% ≤ Calcium ≤ 0.01%, 0% ≤ Copper ≤ 1%, 0% ≤ Nickel ≤ 1%, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Lead ≤ 0.2%, 0% ≤ Tin≤ 0.2%, 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current loss in total iron loss from 30 to 40% when calculated in accordance with Bertotti method.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
  • C22C 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

39.

A DOUBLE COLD ROLLED NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061525
Publication Number 2025/104472
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Leunis, Elke
  • Jacobs, Sigrid
  • Chassang, Xavier

Abstract

The invention deals with a double cold rolled non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 %, 0.2% ≤ Manganese ≤ 0.24%, 3.1% ≤ Silicon ≤ 3.5%, 0.8% ≤ Aluminum ≤ 1.1%, 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 %, 0 % ≤ Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1%, 0% ≤ Titanium ≤ 0.1%, 0% ≤ Vanadium ≤ 0.1%, 0% ≤ Chromium ≤ 1%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Tungsten≤ 0.1%, 0% ≤ Cobalt ≤ 1%, 0% ≤ Arsenic ≤ 0.05%, 0.001% ≤ Calcium ≤ 0.01%, 0% ≤ Copper ≤ 1%, 0.001% ≤ Nickel ≤ 0.01, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Lead ≤ 0.2%, 0% ≤ Tin≤ 0.2%, 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current loss in total iron loss less from 30% to 35% when calculated in accordance of Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.645T to 1.660T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

40.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061526
Publication Number 2025/104473
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 %, 0.17% ≤ Manganese ≤ 0.4%, 3% ≤ Silicon ≤ 3.6%, 0.7% ≤ Aluminum ≤ 1.3 %, 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 %, 0 % ≤ Nitrogen ≤ 0.09%, with 3.85% ≤ Si+Al+Mn ≤ 5.5% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1%, 0% ≤ Titanium ≤ 0.1%, 0% ≤ Vanadium ≤ 0.1%, 0% ≤ Chromium ≤ 1%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Tungsten≤ 0.1%, 0% ≤ Cobalt ≤ 1%, 0% ≤ Arsenic ≤ 0.05%, 0.001% ≤ Calcium ≤ 0.01%, 0% ≤ Copper ≤ 1%, 0% ≤ Nickel ≤ 1%, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Lead ≤ 0.2%, 0% ≤ Tin≤ 0.2%, 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non- recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current loss in total iron loss less than 25% when calculated in accordance of Bertotti method.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
  • C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

41.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061527
Publication Number 2025/104474
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 %, 0.15% ≤ Manganese ≤ 0.25%, 2.9% ≤ Silicon ≤ 3.4%, 0.7% ≤ Aluminum ≤ 1.3 %,0.05% ≤ Nickel ≤ 1%, 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 %, 0 % ≤ Nitrogen ≤ 0.09%, with 3.85% ≤ Si+Al+Mn ≤ 5.5% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1%, 0% ≤ Titanium ≤ 0.1%, 0% ≤ Vanadium ≤ 0.1%, 0% ≤ Chromium ≤ 1%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Tungsten≤ 0.1%, 0% ≤ Cobalt ≤ 1%, 0% ≤ Arsenic ≤ 0.05%, 0.001% ≤ Calcium ≤ 0.01%, 0% ≤ Copper ≤ 1%, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Lead ≤ 0.2%, 0% ≤ Tin≤ 0.2%, 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current loss in total iron loss less than 35% when calculated in accordance of Bertotti method.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/08 - Ferrous alloys, e.g. steel alloys containing nickel
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
  • C22C 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

42.

A DOUBLE COLD ROLLED NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061531
Publication Number 2025/104477
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Leunis, Elke
  • Jacobs, Sigrid
  • Chassang, Xavier

Abstract

The invention deals with a double cold rolled non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 %, 0.1% ≤ Manganese ≤ 0.2%, 3.1% ≤ Silicon ≤ 3.6%, 0.8% ≤ Aluminum ≤ 1.1%, 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 %, 0 % ≤ Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1%, 0% ≤ Titanium ≤ 0.1%, 0% ≤ Vanadium ≤ 0.1%, 0% ≤ Chromium ≤ 1%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Tungsten≤ 0.1%, 0% ≤ Cobalt ≤ 1%, 0% ≤ Arsenic ≤ 0.05%, 0.001% ≤ Calcium ≤ 0.01%, 0% ≤ Copper ≤ 1%, 0.001% ≤ Nickel ≤ 0.01, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Lead ≤ 0.2%, 0% ≤ Tin≤ 0.2%, 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current loss in total iron loss is from 35% to 45% when calculated in accordance of Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.64T to 1.66T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

43.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061533
Publication Number 2025/104479
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 %, 0.30% ≤ Manganese ≤ 0.7%, 3% ≤ Silicon ≤ 3.6%, 0.4%, ≤ Aluminum ≤ 0.8 %, 0.05% ≤ Tin≤ 0.15%, 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 %, 0 % ≤ Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1%, 0% ≤ Titanium ≤ 0.1%, 0% ≤ Vanadium ≤ 0.1%, 0% ≤ Chromium ≤ 1%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Tungsten≤ 0.1%, 0% ≤ Cobalt ≤ 1%, 0% ≤ Arsenic ≤ 0.05%, 0.001% ≤ Calcium ≤ 0.01%, 0% ≤ Copper ≤ 1%, 0% ≤ Nickel ≤ 1%, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Lead ≤ 0.2%, 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current loss in total iron loss from 25% to 35% when calculated in accordance of Bertotti method.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
  • C22C 38/40 - Ferrous alloys, e.g. steel alloys containing chromium with nickel
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

44.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061535
Publication Number 2025/104481
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Leunis, Elke
  • Jacobs, Sigrid
  • Chassang, Xavier

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 %, 0.21% ≤ Manganese ≤ 0.7%, 3% ≤ Silicon ≤ 3.6%, 0.7% ≤ Aluminum ≤ 1.3 %, 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 %, 0 % ≤ Nitrogen ≤ 0.09%, with 3.85% ≤ Si+Al+Mn ≤ 5.5% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1%, 0% ≤ Titanium ≤ 0.1%, 0% ≤ Vanadium ≤ 0.1%, 0% ≤ Chromium ≤ 1%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Tungsten≤ 0.1%, 0% ≤ Cobalt ≤ 1%, 0% ≤ Arsenic ≤ 0.05%, 0.001% ≤ Calcium ≤ 0.01%, 0% ≤ Copper ≤ 1%, 0% ≤ Nickel ≤ 1%, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Lead ≤ 0.2%, 0% ≤ Tin≤ 0.2%, 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current loss in total iron loss from 35% to 45% when calculated in accordance of Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.63T to 1.66T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 1/26 - Methods of annealing
  • C21D 6/00 - Heat treatment of ferrous alloys

45.

A DOUBLE COLD ROLLED NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2023061536
Publication Number 2025/104482
Status In Force
Filing Date 2023-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Leunis, Elke
  • Jacobs, Sigrid
  • Chassang, Xavier

Abstract

The invention deals with a double cold rolled non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 %, 0.1% ≤ Manganese ≤ 0.3%, 3.1% ≤ Silicon ≤ 3.8%, 0.6% ≤ Aluminum ≤ 0.8%, 0 % ≤ Phosphorus ≤ 0.15 %, 0 % ≤ Sulfur ≤ 0.006 %, 0 % ≤ Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1%, 0% ≤ Titanium ≤ 0.1%, 0% ≤ Vanadium ≤ 0.1%, 0% ≤ Chromium ≤ 1%, 0% ≤ Molybdenum ≤ 0.5%, 0% ≤ Tungsten≤ 0.1%, 0% ≤ Cobalt ≤ 1%, 0% ≤ Arsenic ≤ 0.05%, 0.001% ≤ Calcium ≤ 0.01%, 0% ≤ Copper ≤ 1%, 0.001% ≤ Nickel ≤ 0.01, 0 % ≤ Boron ≤ 0.05%, 0 % ≤ Lead ≤ 0.2%, 0% ≤ Tin≤ 0.2%, 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current loss in total iron loss of 40 to 50% when calculated in accordance with Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.66T to 1.7T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
  • C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

46.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061336
Publication Number 2025/104641
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Leunis, Elke
  • Jacobs, Sigrid
  • Chassang, Xavier

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.009 % 0.25% ≤ Manganese ≤ 0.6% 1% ≤ Silicon ≤ 2.5% 0.15% ≤ Aluminum ≤ 0.3 % 0.05% ≤ Tin≤ 0.15% Phosphorus ≤ 0.15 % Sulfur ≤ 0.006% Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1% 0% ≤ Titanium ≤ 0.1% 0% ≤ Vanadium ≤ 0.1% 0% ≤ Chromium ≤ 1% 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1% 0% ≤ Cobalt ≤ 1% 0% ≤ Arsenic ≤ 0.05% 0.001% ≤ Calcium ≤ 0.01% 0% ≤ Copper ≤ 1% 0% ≤ Nickel ≤ 1% 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, from 35% to 50% when calculated in accordance of Bertotti method.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/08 - Ferrous alloys, e.g. steel alloys containing nickel
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

47.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061338
Publication Number 2025/104643
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001 % ≤ Carbon ≤ 0.007 % 0.09% ≤ Manganese ≤ 0.15% 2.5% ≤ Silicon ≤ 3% 0.1 % ≤ Aluminum ≤ 0.5 % Phosphorus ≤ 0.15 % Sulfur ≤ 0.006% Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1 % 0% ≤ Titanium ≤ 0.1 % 0% ≤ Vanadium ≤ 0.1 % 0% ≤ Chromium ≤ 1 % 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1 % 0% ≤ Cobalt ≤ 1 % 0% ≤ Arsenic ≤ 0.05% 0.001 % ≤ Calcium ≤ 0.01 % 0% ≤ Copper ≤ 1 % 0% ≤ Nickel ≤ 1 % 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤ Tin≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, from 35% to 45% when calculated in accordance of Bertotti method.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

48.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061339
Publication Number 2025/104644
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 % 0.15% ≤ Manganese ≤ 0.7% 3% ≤ Silicon ≤ 3.6% 0.7% ≤ Aluminum ≤ 1.3 % Phosphorus ≤ 0.15 % Sulfur ≤ 0.006% Nitrogen ≤ 0.09% with 3.85% ≤ Si+Al+Mn ≤ 5.5% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1% 0% ≤ Titanium ≤ 0.1% 0% ≤ Vanadium ≤ 0.1% 0% ≤ Chromium ≤ 1% 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1% 0% ≤ Cobalt ≤ 1% 0% ≤ Arsenic ≤ 0.05% 0.001% ≤ Calcium ≤ 0.01% 0% ≤ Copper ≤ 1% 0% ≤ Nickel ≤ 1% 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤ Tin≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, from 30 to 40% when calculated in accordance with Bertotti method.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
  • C22C 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

49.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061343
Publication Number 2025/104648
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Leunis, Elke
  • Jacobs, Sigrid
  • Chassang, Xavier

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001 % ≤ Carbon ≤ 0.007 % 0.15% ≤ Manganese ≤ 0.2% 3% ≤ Silicon ≤ 3.6% 0.7% ≤ Aluminum ≤ 1.3 % Phosphorus ≤ 0.15 % Sulfur ≤ 0.006% Nitrogen ≤ 0.09% with 3.85% ≤ Si+AI+Mn ≤ 5.5% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1 % 0% ≤ Titanium ≤ 0.1 % 0% ≤ Vanadium ≤ 0.1 % 0% ≤ Chromium ≤ 1 % 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten ≤ 0.1 % 0% ≤ Cobalt ≤ 1 % 0% ≤ Arsenic ≤ 0.05% 0.001 % ≤ Calcium ≤ 0.01 % 0% ≤ Copper ≤ 1 % 0% ≤ Nickel ≤ 1 % 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤ Tin≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, of 35 to 55% when calculated in accordance with Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.635T to 1.670T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing
  • C22C 38/08 - Ferrous alloys, e.g. steel alloys containing nickel

50.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061349
Publication Number 2025/104654
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Jacobs, Sigrid
  • Chassang, Xavier
  • Leunis, Elke

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 % 0.15% ≤ Manganese ≤ 0.25% 2.9% ≤ Silicon ≤ 3.4% 0.7% ≤ Aluminum ≤ 1.3 % 0.05% ≤ Nickel ≤ 1% Phosphorus ≤ 0.15 % Sulfur ≤ 0.006% Nitrogen ≤ 0.09% with 3.85% ≤ Si+Al+Mn ≤ 5.5% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1% 0% ≤ Titanium ≤ 0.1% 0% ≤ Vanadium ≤ 0.1% 0% ≤ Chromium ≤ 1% 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1% 0% ≤ Cobalt ≤ 1% 0% ≤ Arsenic ≤ 0.05% 0.001% ≤ Calcium ≤ 0.01% 0% ≤ Copper ≤ 1% 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤ Tin≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, less than 35% when calculated in accordance of Bertotti method.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/08 - Ferrous alloys, e.g. steel alloys containing nickel
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
  • C22C 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

51.

A NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NONORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061352
Publication Number 2025/104657
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Leunis, Elke
  • Jacobs, Sigrid
  • Chassang, Xavier

Abstract

The invention deals with a non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.005 % 0.2% ≤ Manganese ≤ 0.3% 3.1% ≤ Silicon ≤ 3.6% 0.6% ≤ Aluminum ≤ 1 % Phosphorus ≤ 0.15 % Sulfur ≤ 0.006% Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1% 0% ≤ Titanium ≤ 0.1% 0% ≤ Vanadium ≤ 0.1% 0% ≤ Chromium ≤ 1% 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1% 0% ≤ Cobalt ≤ 1% 0% ≤ Arsenic ≤ 0.05% 0.001% ≤ Calcium ≤ 0.01% 0% ≤ Copper ≤ 1% 0% ≤ Nickel ≤ 1% 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤ Tin≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of 18 recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, from 30% to 35% when calculated in accordance of Bertotti method.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
  • C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

52.

A DOUBLE COLD ROLLED NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF

      
Application Number IB2024061354
Publication Number 2025/104658
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Leunis, Elke
  • Jacobs, Sigrid
  • Chassang, Xavier

Abstract

The invention deals with a double cold rolled non-oriented electrical steel sheet having a composition comprising of the following elements, expressed in percentage by weight: 0.0001% ≤ Carbon ≤ 0.007 % 0.1% ≤ Manganese ≤ 0.3% 3.1% ≤ Silicon ≤ 3.8% 0.6% ≤ Aluminum ≤ 0.8% Phosphorus ≤ 0.15 % Sulfur ≤ 0.006% Nitrogen ≤ 0.09% and can contain one or more of the following optional elements 0% ≤ Niobium ≤ 0.1% 0% ≤ Titanium ≤ 0.1% 0% ≤ Vanadium ≤ 0.1% 0% ≤ Chromium ≤ 1% 0% ≤ Molybdenum ≤ 0.5% 0% ≤ Tungsten≤ 0.1% 0% ≤ Cobalt ≤ 1% 0% ≤ Arsenic ≤ 0.05% 0.001% ≤ Calcium ≤ 0.01% 0% ≤ Copper ≤ 1% 0.001% ≤ Nickel ≤ 0.01 0 % ≤ Boron ≤ 0.05% 0 % ≤ Lead ≤ 0.2% 0% ≤ Tin≤ 0.2% 0% ≤Antimony ≤ 0.2% the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel sheet being made of ferrite and comprising in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, of 40 to 50% when calculated in accordance with Bertotti method and simultaneously having a magnetic polarization at 5000A/m (J50) from 1.66T to 1.7T.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/20 - Ferrous alloys, e.g. steel alloys containing chromium with copper
  • C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/26 - Methods of annealing

53.

METHOD OF PRODUCING STEEL WITH USING STEEL SCRAP IN ELECTRIC ARC FURNACE

      
Application Number IB2024061392
Publication Number 2025/104682
Status In Force
Filing Date 2024-11-15
Publication Date 2025-05-22
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Brosse, Guillaume
  • Stechmann, Guillaume
  • Sanchez, Mathieu
  • Huber, Jean Christophe

Abstract

The method of producing steel using an Electrical Arc Furnace (EAF) comprising successively loading a load (L) in the EAF, the load (L) containing steel scrap (SC), energizing the electrodes of the EAF for melting the load (L) and generating a melt (M); introducing a desulphurizing slagging agent in the EAF in the melt (M) for collecting sulphur in a slag (S1) above the melt (M) and then removing the slag (S1) from the EAF, and injecting oxygen in the EAF for decarburizing the melt (M).

IPC Classes  ?

  • C21C 5/54 - Processes yielding slags of special composition
  • C21C 5/56 - Manufacture of steel by other methods
  • C21C 7/06 - Deoxidising, e.g. killing
  • C21C 7/064 - DephosphorisingDesulfurising
  • C21C 7/072 - Treatment with gases
  • C21C 7/076 - Use of slags or fluxes as treating agents
  • C21C 5/52 - Manufacture of steel in electric furnaces

54.

ENTRY AIRLOCK FOR A VACUUM CHAMBER OF A FACILITY FOR THE VACUUM PROCESSING OF A MOVING STRIP AND METHOD THEREOF

      
Application Number IB2023061279
Publication Number 2025/099475
Status In Force
Filing Date 2023-11-08
Publication Date 2025-05-15
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Silberberg, Eric
  • Van Hee, Luc

Abstract

The invention relates to an entry airlock for a vacuum chamber (4) of a facility for the vacuum processing of a moving strip (2), the airlock being of the type comprising at least one liquid tank (5) containing a liquid (11), the liquid tank comprising an upstream compartment (6) and a downstream compartment (7) separated by a vertical partition (8), which creates, in the lower portion of the tank, an unobstructed passage (9) between the two compartments, in which a guide roller (10) for guiding a strip is arranged. The airlock comprises a downstream pumping chamber (13) extending from the downstream compartment (7) and connected to a pumping means (15), in which a liquid extraction means (17) is arranged, wherein the downstream pumping chamber comprises an outlet slot (17) for a strip, and wherein the airlock comprises a means (12) for cooling the liquid (11) contained in the liquid container.

IPC Classes  ?

  • B01J 3/03 - Pressure vessels, or vacuum vessels, having closure members or seals specially adapted therefor
  • C23C 14/56 - Apparatus specially adapted for continuous coatingArrangements for maintaining the vacuum, e.g. vacuum locks

55.

Method for erecting a transportation structure

      
Application Number 18840127
Status Pending
Filing Date 2022-02-28
First Publication Date 2025-05-15
Owner ArcelorMittal (Luxembourg)
Inventor
  • Sellitto, Giuseppe
  • Gremling, Michaël
  • Di Silvestro, Elena

Abstract

A method for erecting a portion of a transportation structure including two assemblies of tube segments, capable of being placed under low air pressure and through which pods may travel substantially free of air friction, the method including: (a) erecting a substructure including a first plurality of girders forming a first transportation pathway, a second plurality of girders forming a second transportation pathway and a plurality of platforms forming a service pathway, the erecting step including conveying with vehicle(s) the girders and platforms along the first and/or second transportation pathway, positioning them and having the vehicle(s) return along the service pathway, (b) conveying, with vehicle(s), the tube segments along the first and/or second transportation pathway, positioning them and having the vehicle(s) return along the service pathway. A portion of a transportation structure is also provided.

IPC Classes  ?

  • E01D 18/00 - Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
  • B61B 13/08 - Sliding or levitation systems
  • B61B 13/10 - Tunnel systems
  • E01D 2/04 - Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
  • E01D 19/02 - PiersAbutments
  • E01D 21/06 - Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections

56.

Method for erecting a transportation structure

      
Application Number 18840137
Status Pending
Filing Date 2022-02-28
First Publication Date 2025-05-15
Owner ArcelorMittal (Luxembourg)
Inventor
  • Sellitto, Giuseppe
  • Gremling, Michaël
  • Di Silvestro, Elena

Abstract

A method for erecting a portion of a transportation structure including a plurality of piers, a first plurality of girders forming a first assembly of tube segments and a first rooftop transportation pathway, a second plurality of girders forming a second assembly of tube segments and a second rooftop transportation pathway, both assemblies being capable of being placed under low air pressure and through which pods may travel substantially free of air friction, the method including conveying with vehicle(s) the girders along one single rooftop transportation pathway, positioning them and having the vehicle(s) return along the other rooftop transportation pathway. A portion of a transportation structure is also provided.

IPC Classes  ?

  • E01D 18/00 - Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
  • B61B 13/08 - Sliding or levitation systems
  • B61B 13/10 - Tunnel systems
  • E01D 2/00 - Bridges characterised by the cross-section of their bearing spanning structure
  • E01D 19/02 - PiersAbutments
  • E01D 21/00 - Methods or apparatus specially adapted for erecting or assembling bridges

57.

METHOD OF CONTINUOUS CASTING OF A COMPOSITE METALLIC PRODUCT

      
Application Number IB2023060908
Publication Number 2025/093902
Status In Force
Filing Date 2023-10-30
Publication Date 2025-05-08
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Naveau, Paul
  • Pirlot, Nicolas

Abstract

A method of continuous casting of a composite metallic product having a distinct shell and bulk of different compositions, said shell having a constant thickness, said method comprising the steps of: A. pouring an initial stream of liquid metal from a tundish into a mold with an initial flow rate FRini using a continuous casting nozzle, B. injecting raw material into at least one of said mixing chambers to be mixed with liquid metal flowing into said mixing chamber to modify its composition, C. injecting gas below said dome with a defined gas flowrate GFR, D. regulating the initial flow rate FRini, the gas flowrate GFR, the outlets immersion depths D1 and D2 and the casting speed Vc to obtain a composite metallic product.

IPC Classes  ?

  • B22D 11/00 - Continuous casting of metals, i.e. casting in indefinite lengths
  • B22D 11/103 - Distributing the molten metal, e.g. using runners, floats, distributors
  • B22D 11/108 - Feeding additives, powders, or the like
  • B22D 11/116 - Refining the metal
  • B22D 11/16 - Controlling or regulating processes or operations
  • B22D 11/18 - Controlling or regulating processes or operations for pouring
  • B22D 41/50 - Pouring-nozzles
  • B22D 41/58 - Pouring-nozzles with gas injecting means

58.

METHOD FOR CONTROLLING A SINTERING MACHINE, ASSOCIATED CONTROLLER AND SINTERING MACHINE

      
Application Number IB2023060897
Publication Number 2025/093899
Status In Force
Filing Date 2023-10-30
Publication Date 2025-05-08
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Busatto, Flavio Tulio
  • Alcoforado, Gabriel Nazareth Guedes

Abstract

iii) arranged along a belt (2) of the conveyor, below the belt, - determining a temperature rise slope from at least some of the wind boxes temperatures, the temperature rise slope representing the slope of the temperature as a function of a position along the belt of the conveyor, upstream of a maximum temperature position, - controlling a speed of the belt of the conveyor depending on the temperature rise slope.

IPC Classes  ?

  • F27B 9/40 - Arrangements of controlling or monitoring devices
  • F27B 21/06 - Endless-strand sintering machines
  • F27D 19/00 - Arrangement of controlling devices
  • F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices
  • C22B 1/20 - SinteringAgglomerating in sintering machines with movable grates

59.

METHOD OF CONTINUOUS CASTING OF A COMPOSITE METALLIC PRODUCT

      
Application Number IB2023060901
Publication Number 2025/093900
Status In Force
Filing Date 2023-10-30
Publication Date 2025-05-08
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Naveau, Paul
  • Pirlot, Nicolas

Abstract

The invention relates to a method of continuous casting of a composite metallic product having a shell of a defined thickness, comprising the steps of: A. pouring a stream of liquid metal from a tundish into a mold with a flow rate FR using a nozzle comprising: − a dome − two chambers created by an internal wall − means for injecting raw material − means for injecting gas − channels connected to the chambers and opening into the mold at two different immersion depths D1 and D2, B. injecting raw material into one chamber to be mixed with liquid to modify its composition, creating two pools of liquid metal having different compositions, separated by an interface at a depth Li C. injecting gas below said dome D. regulating FR, D1, D2 and the casting speed to regulate Li to obtain a composite metallic product with a defined shell thickness.

IPC Classes  ?

  • B22D 11/00 - Continuous casting of metals, i.e. casting in indefinite lengths
  • B22D 11/103 - Distributing the molten metal, e.g. using runners, floats, distributors
  • B22D 11/108 - Feeding additives, powders, or the like
  • B22D 11/16 - Controlling or regulating processes or operations
  • B22D 11/18 - Controlling or regulating processes or operations for pouring
  • B22D 41/50 - Pouring-nozzles
  • B22D 41/58 - Pouring-nozzles with gas injecting means

60.

Leak-Proof Upper Tundish Nozzle

      
Application Number 18692805
Status Pending
Filing Date 2021-09-24
First Publication Date 2025-05-01
Owner ArcelorMittal (Luxembourg)
Inventor Forman, Bruce R.

Abstract

A leak-proof gas injected upper tundish nozzle including a protective can, and a ceramic inner portion disposed within the protective can. The ceramic inner portion may has gas flow pathways therein which have been formed using a sacrificial mold when producing the ceramic inner portion. A gas flow seal is formed on the interior surfaces of the gas flow pathways within the ceramic inner portion. The gas flow seal blocks gas leakage from the gas flow pathways into any cracks in the ceramic inner portion. The gas flow seal is formed of nickel or an alloy of nickel.

IPC Classes  ?

  • B22D 41/58 - Pouring-nozzles with gas injecting means

61.

STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCELLENT BENDING AND METHOD OF MANUFACTURING THE SAME

      
Application Number 19011505
Status Pending
Filing Date 2025-01-06
First Publication Date 2025-05-01
Owner ArcelorMittal (Luxembourg)
Inventor
  • Dumont, Alice
  • Stechmann, Guillaume
  • Lucas, Emmanuel
  • Salib, Matthieu

Abstract

A steel sheet having a chemical composition including in wt % C: 0.2-0.4%, Mn: 0.8-2.0%, Si: 0.1-0.5%, Al: 0.01-0.1%, Ti: 0.01-0.1%, B: 0.0005-0.005%, P≤0.040%, Ca≤0.01%, S≤0.006%, N≤0.01%. The steel sheet includes from the bulk to the surface of the coated steel sheet a bulk and a skin layer occupying the outermost 10% of the thickness on either side of the bulk. The bulk is topped by a skin layer occupying the outermost 10% of the thickness on either side of the bulk, the density of TiN/Ti(C,N) inclusions in the skin being smaller than 240 particles/mm2 and the clustering index of MnS inclusions in the skin being lower than 110 μm/mm2. This allows to manufacture hot pressed parts having a tensile strength equal to or greater than 1300 MPa and a bending angle normalized to 1.5 mm and measured in the transverse direction strictly greater than 48°.

IPC Classes  ?

  • C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
  • C21D 1/18 - HardeningQuenching with or without subsequent tempering
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 7/13 - Modifying the physical properties of iron or steel by deformation by hot working
  • C21D 8/00 - Modifying the physical properties by deformation combined with, or followed by, heat treatment
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
  • C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron

62.

STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCELLENT BENDING AND METHOD OF MANUFACTURING THE SAME

      
Application Number 19011522
Status Pending
Filing Date 2025-01-06
First Publication Date 2025-05-01
Owner ArcelorMittal (Luxembourg)
Inventor
  • Dumont, Alice
  • Stechmann, Guillaume
  • Lucas, Emmanuel
  • Salib, Matthieu

Abstract

A steel sheet having a chemical composition including in wt % C: 0.2-0.4%, Mn: 0.8-2.0%, Si: 0.1-0.5%, Al: 0.01-0.1%, Ti: 0.01-0.1%, B: 0.0005-0.005%, P≤0.040%, Ca≤0.01%, S≤0.006%, N≤0.01%. The steel sheet includes from the bulk to the surface of the coated steel sheet a bulk and a skin layer occupying the outermost 10% of the thickness on either side of the bulk. The bulk is topped by a skin layer occupying the outermost 10% of the thickness on either side of the bulk, the density of TiN/Ti(C,N) inclusions in the skin being smaller than 240 particles/mm2 and the clustering index of MnS inclusions in the skin being lower than 110 μm/mm2. This allows to manufacture hot pressed parts having a tensile strength equal to or greater than 1300 MPa and a bending angle normalized to 1.5 mm and measured in the transverse direction strictly greater than 48°.

IPC Classes  ?

  • C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
  • C21D 1/18 - HardeningQuenching with or without subsequent tempering
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 7/13 - Modifying the physical properties of iron or steel by deformation by hot working
  • C21D 8/00 - Modifying the physical properties by deformation combined with, or followed by, heat treatment
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
  • C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron

63.

DEVICE FOR CLEANING A HOT DIP COATING BATH AND METHOD TO PERFORM HOT DIP COATING OF A STEEL SHEET

      
Application Number IB2023060718
Publication Number 2025/088358
Status In Force
Filing Date 2023-10-24
Publication Date 2025-05-01
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Larnicol, Maïwenn Tifenn Soazig
  • Mungiovi, Rosario
  • Di Girolamo, Giuseppe
  • Liberti, Antonino
  • Noville, Jean-François

Abstract

A hot dip coating equipment able to coat a steel strip (1) running along a given path, comprising a liquid metal bath, having a bath level (2), provided with one sink roll (3) and at least one stabilizing roll (4), a pair of gas knives (5), wherein said equipment is fitted with at least one drain channel (6) forming a chute starting at the bath level (2), pumping means (7) being connected to the drain channel (6), and wherein said drain channel does not include any portion crossing an extraction line (12) formed by an intersection of the bath level (2) with the steel strip (1) at the point where the strip leaves the bath.

IPC Classes  ?

  • C23C 2/00 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shapeApparatus therefor
  • C23C 2/20 - StripsPlates

64.

INSTALLATION FOR CONTINUOUSLY HOT DIP COATING A STEEL STRIP AND METHOD THEREFORE

      
Application Number IB2023060791
Publication Number 2025/088362
Status In Force
Filing Date 2023-10-26
Publication Date 2025-05-01
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Vicente-Hernandez, Patrice
  • Durighello, Paul
  • Valentin, Rémi

Abstract

An installation for continuously hot dip coating a steel strip (1) comprising: - a liquid metal bath (2), - gas wiping nozzles equipped with lips (3) and with a lip cleaning tool (4) able to be moved along the nozzle lips, - confinement boxes (5) enclosing the atmosphere around the steel strip path above the wiping nozzles, - a lip cleaning space (6) being provided between said gas wiping nozzles and said confinement boxes, - means for feeding non-oxidizing gas into the confinement boxes (5), - means for feeding gas into said cleaning space (6).

IPC Classes  ?

  • C23C 2/00 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shapeApparatus therefor
  • B05C 11/06 - Apparatus for spreading or distributing liquids or other fluent materials already applied to a surfaceControl of the thickness of a coating with a blast of gas or vapour
  • C23C 2/06 - Zinc or cadmium or alloys based thereon
  • C23C 2/16 - Removing excess of molten coatingsControlling or regulating the coating thickness using fluids under pressure, e.g. air knives
  • C23C 2/18 - Removing excess of molten coatings from elongated material
  • C23C 2/20 - StripsPlates
  • C23C 2/26 - After-treatment
  • C23C 2/40 - PlatesStrips

65.

STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCELLENT BENDING ANISOTROPY AND METHOD OF MANUFACTURING THE SAME

      
Application Number 18988516
Status Pending
Filing Date 2024-12-19
First Publication Date 2025-05-01
Owner ArcelorMittal (Luxembourg)
Inventor
  • Cobo, Sebastian
  • Lucas, Emmanuel
  • Salib, Matthieu
  • Stechmann, Guillaume

Abstract

A steel sheet hasa chemical composition including in wt % C: 0.2-0.4%, Mn: 0.8-2.0%, Si: 0.1-0.5%, Al: 0.01-0.1%, Ti: 0.01-0.1%, B: 0.0005-0.005%, P≤0.040%, Ca≤0.01%, S≤0.006%, N≤0.01%. The steel sheet includes from the bulk to the surface of the coated steel sheet a bulk and a skin layer occupying the outermost 10% of the thickness on either side of the bulk. The bulk includes an inclusion population in which the sum of clustering indexes of MnS and TiN/Ti(C,N) inclusions is less than or equal to 300 μm/mm2. This allows to manufacture hot pressed parts having a tensile strength equal to or greater than 1300 MPa and a bending anisotropy equal to or lower than 7°.

IPC Classes  ?

  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium

66.

DEVICE FOR CLEANING A HOT DIP COATING BATH AND METHOD TO PERFORM HOT DIP COATING OF A STEEL SHEET

      
Application Number IB2024059728
Publication Number 2025/088411
Status In Force
Filing Date 2024-10-04
Publication Date 2025-05-01
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Di Girolamo, Giuseppe
  • Liberti, Antonino
  • Mungiovi, Rosario
  • Noville, Jean-François
  • Larnicol, Maïwenn Tifenn Soazig

Abstract

A hot dip coating equipment able to coat a steel strip (1) running along a given path, comprising a liquid metal bath, having a bath level (2), provided with one sink roll (3) and at least one stabilizing roll (4), a pair of gas knives (5), wherein said equipment is fitted with at least one drain channel (6) forming a chute starting at the bath level (2), pumping means (7) being connected to the drain channel (6), and wherein said drain channel does not include any portion crossing an extraction line (12) formed by an intersection of the bath level (2) with the steel strip (1) at the point where the strip leaves the bath.

IPC Classes  ?

  • C23C 2/00 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shapeApparatus therefor
  • C23C 2/06 - Zinc or cadmium or alloys based thereon
  • C23C 2/20 - StripsPlates

67.

INSTALLATION FOR CONTINUOUSLY HOT DIP COATING A STEEL STRIP AND METHOD THEREFORE

      
Application Number IB2024060036
Publication Number 2025/088424
Status In Force
Filing Date 2024-10-14
Publication Date 2025-05-01
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Durighello, Paul
  • Valentin, Rémi
  • Vicente-Hernandez, Patrice

Abstract

An installation for continuously hot dip coating a steel strip (1) comprising: - a liquid metal bath (2), - gas wiping nozzles equipped with lips (3) and with a lip cleaning tool (4) able to be moved along the nozzle lips, - confinement boxes (5) enclosing the atmosphere around the steel strip path above the wiping nozzles, - a lip cleaning space (6) being provided between said gas wiping nozzles and said confinement boxes, - means for feeding non-oxidizing gas into the confinement boxes (5), - means for feeding gas into said cleaning space (6).

IPC Classes  ?

  • C23C 2/00 - Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shapeApparatus therefor
  • B05C 11/06 - Apparatus for spreading or distributing liquids or other fluent materials already applied to a surfaceControl of the thickness of a coating with a blast of gas or vapour
  • C23C 2/06 - Zinc or cadmium or alloys based thereon
  • C23C 2/16 - Removing excess of molten coatingsControlling or regulating the coating thickness using fluids under pressure, e.g. air knives
  • C23C 2/18 - Removing excess of molten coatings from elongated material
  • C23C 2/20 - StripsPlates
  • C23C 2/26 - After-treatment
  • C23C 2/40 - PlatesStrips

68.

Method for the treatment of ferrous scrap comprising magnetic and non-magnetic materials and associated plant

      
Application Number 18833024
Status Pending
Filing Date 2022-02-10
First Publication Date 2025-04-24
Owner ArcelorMittal (Luxembourg)
Inventor
  • Vicente Rojo, Asier
  • Russo, Philippe Marcel

Abstract

A method for the treatment of ferrous scrap 1 including magnetic and non-magnetic materials, the method including at least a friction step 110 wherein the ferrous scrap is subjected to a mechanical friction to obtain cleaned scrap 11 and a magnetic sorting step 120 wherein the cleaned scrap 11 is separated into a non-magnetic coarse fraction 12A and a magnetic coarse fraction 12B. An associated steelmaking method and plant is also provided.

IPC Classes  ?

69.

DASH PANEL REINFORCEMENT RING

      
Application Number IB2023060414
Publication Number 2025/083445
Status In Force
Filing Date 2023-10-16
Publication Date 2025-04-24
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Lam, Jimmy
  • Hasenpouth, Dan

Abstract

Dash panel reinforcement ring (1) designed to reinforce a dash panel assembly (3) of an automotive vehicle (2) in the case when said vehicle comprises an Heating Ventilation and Air Conditioning unit inserted into said dash panel assembly

IPC Classes  ?

  • B62D 25/14 - Dashboards as superstructure sub-unit

70.

STEEL SHEET AND HIGH STRENGTH PRESS HARDENED STEEL PART HAVING EXCELLENT BENDING ANISOTROPY AND METHOD OF MANUFACTURING THE SAME

      
Application Number 18988468
Status Pending
Filing Date 2024-12-19
First Publication Date 2025-04-24
Owner ArcelorMittal (Luxembourg)
Inventor
  • Cobo, Sebastian
  • Lucas, Emmanuel
  • Salib, Matthieu
  • Stechmann, Guillaume

Abstract

A steel sheet hasa chemical composition including in wt % C: 0.2-0.4%, Mn: 0.8-2.0%, Si: 0.1-0.5%, Al: 0.01-0.1%, Ti: 0.01-0.1%, B: 0.0005-0.005%, P≤0.040%, Ca≤0.01%, S≤0.006%, N≤0.01%. The steel sheet includes from the bulk to the surface of the coated steel sheet a bulk and a skin layer occupying the outermost 10% of the thickness on either side of the bulk. The bulk includes an inclusion population in which the sum of clustering indexes of MnS and TiN/Ti(C,N) inclusions is less than or equal to 300 μm/mm2. This allows to manufacture hot pressed parts having a tensile strength equal to or greater than 1300 MPa and a bending anisotropy equal to or lower than 7°.

IPC Classes  ?

  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium

71.

DASH PANEL REINFORCEMENT RING

      
Application Number IB2024059730
Publication Number 2025/083503
Status In Force
Filing Date 2024-10-04
Publication Date 2025-04-24
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Lam, Jimmy
  • Hasenpouth, Dan

Abstract

Dash panel reinforcement ring (1) designed to reinforce a dash panel assembly (3) of an automotive vehicle (2) in the case when said vehicle comprises an Heating Ventilation and Air Conditioning unit inserted into said dash panel assembly

IPC Classes  ?

  • B62D 25/14 - Dashboards as superstructure sub-unit

72.

METHOD FOR PRODUCING A COATED STEEL SHEET HAVING IMPROVED STRENGHT, DUCTILITY AND FORMABILITY

      
Application Number 18890744
Status Pending
Filing Date 2024-09-19
First Publication Date 2025-04-17
Owner ArcelorMittal (Luxembourg)
Inventor
  • Masse, Jean- Philippe
  • Hell, Jean-Christophe

Abstract

A method is for producing a high strength coated steel sheet having a yield stress YS>550 MPa, a tensile strength TS>980 MPa, and improved formability and ductility. The steel contains: 0.15%≤C≤0.25%, 1.2%≤Si≤1.8%, 2%≤Mn≤2.4%, 0.1%≤Cr≤0.25%, Al≤0.5%, the balance being Fe and unavoidable impurities. The sheet is annealed at a temperature between TA1=Ac3−0.45*(Ms−QT) and TA2=830° C. for at least 30 s then quenched by cooling it to a quenching temperature QT between 180° C. and 300° C., then heated to a partitioning temperature PT between 380° C. and 480° C. and maintained at this temperature for a partitioning time Pt between 10 s and 300 s, then either hot dip coated and cooled to the room temperature with a cooling rate of at least 25° C./s below 300° C., or directly cooled to the room temperature with a cooling rate of at least 25° C./s and further electro-galvanized, or cooled to the room temperature with a cooling rate of at least 25° C./s without coating. The steel contains 5% to 25% of intercritical ferrite, at least 50% of partitioned martensite, at least 10% of residual austenite, less than 10% of fresh martensite, and bainite, the sum of partitioned martensite and bainite being at least 60%. It also relates to the obtained coated or non coated sheet.

IPC Classes  ?

  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
  • C21D 1/18 - HardeningQuenching with or without subsequent tempering
  • C21D 1/19 - HardeningQuenching with or without subsequent tempering by interrupted quenching
  • C21D 1/26 - Methods of annealing
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
  • C22C 38/38 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
  • C23C 2/02 - Pretreatment of the material to be coated, e.g. for coating on selected surface areas
  • C23C 2/06 - Zinc or cadmium or alloys based thereon
  • C23C 2/12 - Aluminium or alloys based thereon
  • C23C 2/40 - PlatesStrips
  • C23F 17/00 - Multi-step processes for surface treatment of metallic material involving at least one process provided for in class and at least one process covered by subclass or or class
  • C25D 3/22 - ElectroplatingBaths therefor from solutions of zinc
  • C25D 3/56 - ElectroplatingBaths therefor from solutions of alloys

73.

CRACK-CONTAINING HOT-STAMPED COATED STEEL PART WITH EXCELLENT SPOT-WELDABILITY AND EXCELLENT PAINTING ADHESION

      
Application Number 18757440
Status Pending
Filing Date 2024-02-09
First Publication Date 2025-04-10
Owner ArcelorMittal (Luxembourg)
Inventor
  • Philippot, Clément
  • Serrs, Doriane
  • Salmon Legagneur, Hubert
  • Dussaussois, David

Abstract

A hot-stamped coated steel part includes a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer. The total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition: A hot-stamped coated steel part includes a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer. The total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition: 4 ⁢ 0 ≤ E p ⁢ c ≤ 80 with E p ⁢ c = ( 3 ⁢ 3 . 3 - e IDL 0 . 9 + e IDL - e c ⁢ o ⁢ a ⁢ t ⁢ i ⁢ n ⁢ g ) 2 - 1 ⁢ 4 ⁢ 8 ⁢ ( e IDL - e c ⁢ o ⁢ a ⁢ t ⁢ i ⁢ n ⁢ g ) - ( 3 ⁢ 3 . 3 - e IDL 0 . 9 + e IDL - e c ⁢ o ⁢ a ⁢ t ⁢ i ⁢ n ⁢ g ) A hot-stamped coated steel part includes a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer. The total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition: 4 ⁢ 0 ≤ E p ⁢ c ≤ 80 with E p ⁢ c = ( 3 ⁢ 3 . 3 - e IDL 0 . 9 + e IDL - e c ⁢ o ⁢ a ⁢ t ⁢ i ⁢ n ⁢ g ) 2 - 1 ⁢ 4 ⁢ 8 ⁢ ( e IDL - e c ⁢ o ⁢ a ⁢ t ⁢ i ⁢ n ⁢ g ) - ( 3 ⁢ 3 . 3 - e IDL 0 . 9 + e IDL - e c ⁢ o ⁢ a ⁢ t ⁢ i ⁢ n ⁢ g ) The hot-stamped coated steel part comprises an undeformed portion having a thickness ePflat from 0.6 mm to 3.5 mm, and at least one deformed portion. A lineic density of cracks dC in the coating in the undeformed portion is higher than or equal to a minimum lineic density of cracks dCmin(ePflat) defined as: A hot-stamped coated steel part includes a steel substrate and an aluminum alloy coating comprising, proceeding from steel substrate outwards, an interdiffusion layer and an outer layer. The total thickness of the coating ecoating and the thickness of the interdiffusion layer eIDL satisfy the following condition: 4 ⁢ 0 ≤ E p ⁢ c ≤ 80 with E p ⁢ c = ( 3 ⁢ 3 . 3 - e IDL 0 . 9 + e IDL - e c ⁢ o ⁢ a ⁢ t ⁢ i ⁢ n ⁢ g ) 2 - 1 ⁢ 4 ⁢ 8 ⁢ ( e IDL - e c ⁢ o ⁢ a ⁢ t ⁢ i ⁢ n ⁢ g ) - ( 3 ⁢ 3 . 3 - e IDL 0 . 9 + e IDL - e c ⁢ o ⁢ a ⁢ t ⁢ i ⁢ n ⁢ g ) The hot-stamped coated steel part comprises an undeformed portion having a thickness ePflat from 0.6 mm to 3.5 mm, and at least one deformed portion. A lineic density of cracks dC in the coating in the undeformed portion is higher than or equal to a minimum lineic density of cracks dCmin(ePflat) defined as: d ⁢ C min ( e p ⁢ flat ) = 1 ⁢ 5 . 5 + 9 ⁢ 1 * e - 7.44 - 2 . 8 ⁢ 8 * arctan ( 5.49 * ( e pflat - 1.7 1 ) ) - 1 ⁢ 0 6.5 * e - 8.62 - 3 . 3 ⁢ 4 * arctan ( 5.49 * ( e pflat - 1.71 ) )

IPC Classes  ?

  • B21D 22/02 - Stamping using rigid devices or tools
  • C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
  • C22C 21/02 - Alloys based on aluminium with silicon as the next major constituent
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
  • C23C 2/12 - Aluminium or alloys based thereon

74.

COOLING SYSTEM OF BATTERY PACK AND ITS MANUFACTURING METHOD

      
Application Number 18292724
Status Pending
Filing Date 2022-06-21
First Publication Date 2025-04-10
Owner ArcelorMittal (Luxembourg)
Inventor
  • Gregoire, Astrid
  • Allely, Christian
  • Machado Amorim, Tiago
  • Amblard, Matthieu

Abstract

A cooling system of a battery pack including a metallic coated steel sheet wherein the metallic coating is based on aluminum and includes optionally silicon and unavoidable impurities.

IPC Classes  ?

75.

METHOD FOR PURIFYING A PICKLING SOLUTION

      
Application Number IB2023059590
Publication Number 2025/068741
Status In Force
Filing Date 2023-09-27
Publication Date 2025-04-03
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Garcés Alonso, Diego
  • Menéndez Delmiro, Vanesa María

Abstract

The invention relates to a pickling installation comprising: - a pickling tank, - a concentration tank wherein said concentration tank is connected to said pickling tank, - a crossflow filtration device, able to produce a permeate and a retentate, comprising an entry side, an permeate exit side and a retentate exit side wherein - said entry side 5e is connected to said concentration tank, - said retentate exit side is connected to said entry side and to said concentration tank.

IPC Classes  ?

  • C23G 1/08 - Iron or steel
  • C23G 1/36 - Regeneration of waste pickling liquors
  • B01D 61/14 - UltrafiltrationMicrofiltration
  • C23G 3/02 - Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously

76.

STEEL PRODUCTION DEVICE COMPRISING AN ISOLATION SLEEVE

      
Application Number IB2023059776
Publication Number 2025/068753
Status In Force
Filing Date 2023-09-29
Publication Date 2025-04-03
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Stechmann, Guillaume
  • Sanchez, Mathieu
  • Brosse, Guillaume
  • Huber, Jean-Christophe

Abstract

The steel production device (1) comprising an electric arc furnace (2), wherein a metallic material is melted, and a ladle (4), wherein the melted metallic material is poured from an outlet (12) of the electric arc furnace (2). The steel production device further comprises a sleeve (22) extending between the outlet (12) of the electric arc furnace (2) and the ladle (4), the melted metallic material being poured into said sleeve (22) from the electric arc furnace outlet (12) to the ladle (4), said sleeve (22) being arranged to isolate the melted metallic material stream (20) flowing through said sleeve (22) from ambient air.

IPC Classes  ?

  • C21C 5/52 - Manufacture of steel in electric furnaces
  • F27B 3/08 - Hearth-type furnaces, e.g. of reverberatory typeElectric arc furnaces heated electrically, e.g. electric arc furnaces, with or without any other source of heat
  • F27B 3/19 - Arrangement of devices for discharging
  • F27D 3/14 - Charging or discharging liquid or molten material
  • B22D 2/00 - Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
  • B22D 41/00 - Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
  • B22D 41/12 - Travelling ladles or similar containersCars for ladles
  • B22D 41/58 - Pouring-nozzles with gas injecting means

77.

4Life

      
Application Number 019167520
Status Pending
Filing Date 2025-04-03
Owner ArcelorMittal Bissen & Bettembourg S.A. (Luxembourg)
NICE Classes  ? 06 - Common metals and ores; objects made of metal

Goods & Services

Non-electric wires of common metal; Iron wire; Barbed wire; Steel wire; Cables of metal, non-electric; Latticework of metal; Wire mesh.

78.

METHOD FOR PURIFYING A PICKLING SOLUTION

      
Application Number IB2024059238
Publication Number 2025/068852
Status In Force
Filing Date 2024-09-23
Publication Date 2025-04-03
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Garcés Alonso, Diego
  • Menéndez Delmiro, Vanesa María

Abstract

The invention relates to a pickling installation for a pickling solution to pickle electrical steel comprising: - a pickling tank, - a concentration tank wherein said concentration tank is connected to said pickling tank, - a crossflow filtration device, able to produce a permeate and a retentate, comprising an entry side, an permeate exit side and a retentate exit side wherein - said entry side is connected to said concentration tank, - said retentate exit side is connected to said entry side and to said concentration tank.

IPC Classes  ?

  • C23G 1/08 - Iron or steel
  • C23G 1/36 - Regeneration of waste pickling liquors
  • B01D 61/14 - UltrafiltrationMicrofiltration
  • C23G 3/02 - Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously

79.

DIRECT REDUCTION SHAFT FURNACE WITH PROBE FOR MEASURING INTERIOR GAS ANALYSIS

      
Application Number 18975558
Status Pending
Filing Date 2024-12-10
First Publication Date 2025-03-27
Owner ArcelorMittal (Luxembourg)
Inventor
  • Farahani, Mahdi
  • Farley, Justin
  • Tsvik, George
  • Lucena Mogollon, Gabriel Jesus

Abstract

A direct reduction shaft furnace having at least one probe disposed vertically within the reduction zone thereof. The probe preferably extends from the top to the bottom of the reduction zone. The probe allows for gas sampling along the length thereof and transmittal of the gas to at least one type of gas analysis device. The probe may also allow for the measurement of the temperature and pressure of the gas sample as it is taken.

IPC Classes  ?

  • F27B 1/28 - Arrangements of monitoring devices, of indicators, of alarm devices
  • C21B 13/02 - Making spongy iron or liquid steel, by direct processes in shaft furnaces
  • F27D 21/00 - Arrangement of monitoring devicesArrangement of safety devices
  • G01K 13/024 - Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow of moving gases
  • H01J 49/04 - Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locksArrangements for external adjustment of electron- or ion-optical components

80.

ACID REGENERATION PROCESS FOR PICKLING PROCESS

      
Application Number IB2023059018
Publication Number 2025/056939
Status In Force
Filing Date 2023-09-12
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor Botas Velasco, Cristina

Abstract

e2242e4.22O + 2 HCl, so as to obtain a reaction mixture comprising hydrochloric acid and hydrated forms of iron sulphate, wherein said reactants comprises from 5 to 40 weight percent of sulphuric acid and ii. distilling said reaction mixture to obtain a distillate and a concentrate, iii. mixing said concentrate with water such that the weight ratio between the concentrate and the water is from 0.1 to 10, to obtain an aqueous solution, iv. setting said aqueous solution to a temperature from -10 to 50°C to obtain a liquid phase and a solid phase, v. separating said liquid phase and said solid phase obtained in step iv.

IPC Classes  ?

81.

A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL

      
Application Number IB2023059057
Publication Number 2025/056944
Status In Force
Filing Date 2023-09-13
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Champemaud, Sébastien
  • Ekiz, Elvan
  • Liebeherr, Martin
  • Puype, Athina
  • Saikaly, Wahib
  • Schiavone, Lucas

Abstract

The patent relates to a method of production of a non-oriented electrical steel sheet comprising a step of warm rolling said hot rolled steel sheet, wherein said warm rolling at least three rolling passes, wherein - the first rolling pass is performed with an entry temperature of the steel sheet from 70°C to 140°C, - the second rolling pass is performed with an entry temperature of the steel sheet from 90°C to 210°C and being greater that the entry temperature of said first rolling pass, - the third rolling pass is performed with an entry temperature of the steel sheet from 190°C to 250°C and being greater that the entry temperature of said second rolling pass, - the remaining rolling passes are performed with an entry temperature of the steel sheet from 50°C to 100°C.

IPC Classes  ?

  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • H01F 1/147 - Alloys characterised by their composition
  • H01F 1/16 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets

82.

A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL

      
Application Number IB2023059058
Publication Number 2025/056945
Status In Force
Filing Date 2023-09-13
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Champemaud, Sébastien
  • Ekiz, Elvan
  • Liebeherr, Martin
  • Puype, Athina
  • Saikaly, Wahib
  • Schiavone, Lucas

Abstract

The patent relates to a method of production of a non-oriented electrical steel sheet comprising a step of warm rolling, wherein said warm rolling comprises five to eight rolling passes, wherein - the first rolling pass is performed with an entry temperature of the steel sheet from 70 to 120°C, - the second rolling pass is performed with an entry temperature of the steel sheet from 90 to 175°C and greater than the entry temperature of the first rolling pass, - the remaining rolling passes are performed with an entry temperature of the steel sheet from 190 to 250°C.

IPC Classes  ?

  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • H01F 1/147 - Alloys characterised by their composition
  • H01F 1/16 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets

83.

A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL

      
Application Number IB2024058737
Publication Number 2025/057037
Status In Force
Filing Date 2024-09-09
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Champemaud, Sébastien
  • Ekiz, Elvan
  • Liebeherr, Martin
  • Puype, Athina
  • Saikaly, Wahib
  • Schiavone, Lucas

Abstract

The patent relates to a method of production of a non-oriented electrical steel sheet comprising a step of warm rolling said hot rolled steel sheet, wherein said warm rolling at least three rolling passes, wherein - the first rolling pass is performed with an entry temperature of the steel sheet from 70°C to 140°C, - the second rolling pass is performed with an entry temperature of the steel sheet from 90°C to 210°C and being greater that the entry temperature of said first rolling pass, - the third rolling pass is performed with an entry temperature of the steel sheet from 190°C to 250°C and being greater that the entry temperature of said second rolling pass, - the remaining rolling passes are performed with an entry temperature of the steel sheet from 50°C to 100°C.

IPC Classes  ?

  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • H01F 1/147 - Alloys characterised by their composition
  • H01F 1/16 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets

84.

A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL

      
Application Number IB2024058739
Publication Number 2025/057039
Status In Force
Filing Date 2024-09-09
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Champemaud, Sébastien
  • Ekiz, Elvan
  • Liebeherr, Martin
  • Puype, Athina
  • Saikaly, Wahib
  • Schiavone, Lucas

Abstract

The patent relates to a method of production of a non-oriented electrical steel sheet comprising a step of warm rolling, wherein said warm rolling comprises five to eight rolling passes, wherein - the first rolling pass is performed with an entry temperature of the steel sheet from 70 to 120°C, - the second rolling pass is performed with an entry temperature of the steel sheet from 90 to 175°C and greater than the entry temperature of the first rolling pass, - the remaining rolling passes are performed with an entry temperature of the steel sheet from 190 to 250°C.

IPC Classes  ?

  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • H01F 1/147 - Alloys characterised by their composition
  • H01F 1/16 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets

85.

METHOD FOR DETERMINING AN OPTIMIZED SILICON CONTENT IN LIQUID STEEL

      
Application Number IB2024058816
Publication Number 2025/057069
Status In Force
Filing Date 2024-09-11
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Ahtoy, Evangeline
  • Musik, Céline
  • Javadi Doodran, Tannaz
  • Rivaux, Benjamin

Abstract

A method to calculate an optimized amount of silicon to be added in a liquid steel produced using copper-containing scrap. The invention is also related to a method of hot rolling a steel semi-product resulting from the casting of a liquid steel produced using copper-containing scrap.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C21C 5/46 - Details or accessories
  • C21C 7/00 - Treating molten ferrous alloys, e.g. steel, not covered by groups
  • C22C 38/16 - Ferrous alloys, e.g. steel alloys containing copper
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals

86.

Ferrous alloy powder for additive manufacturing

      
Application Number 18728089
Status Pending
Filing Date 2023-01-31
First Publication Date 2025-03-20
Owner ArcelorMittal (Luxembourg)
Inventor
  • Bonnet, Frédéric
  • Daeschler, Valérie
  • Sanz Moral, Luis Miguel
  • Rementeria Fernandez, Rosalía
  • Del Rio Fernandez, Laura

Abstract

A ferrous alloy powder for additive manufacturing, obtained by atomization with a gas made of at least 95% in volume of nitrogen, the alloy including carbon up to 0.5 wt. %, titanium up to 11.0 wt. %, boron up to 5 wt. %, manganese up to 30 wt. %, aluminium up to 15 wt. %, silicon up to 1.5 wt. %, vanadium up to 0.5 wt. %, copper up to 2 wt. %, niobium up to 2 wt. %, the remainder being iron and residual elements, the powder including endogenous nitrides and/or carbonitrides of at least one element chosen among a group consisting of titanium, aluminium, boron, vanadium, silicon, and niobium, the nitrogen content of such ferrous alloy powder being above the solubility limit of nitrogen in such alloy, at the atomization temperature. A manufacturing method of such powder is also provided.

IPC Classes  ?

  • B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
  • B22F 1/05 - Metallic powder characterised by the size or surface area of the particles
  • B33Y 70/00 - Materials specially adapted for additive manufacturing
  • C22C 33/04 - Making ferrous alloys by melting

87.

A COLD ROLLED MARTENSITIC STEEL AND A METHOD OF MARTENSITIC STEEL THEREOF

      
Application Number IB2023059036
Publication Number 2025/056941
Status In Force
Filing Date 2023-09-12
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor Fan, Dongwei

Abstract

A martensitic steel sheet comprising the following elements, 0.07% ≦ C ≦ 0.12%; 1.9% ≦ Mn ≦ 2.5 %; 0.2% ≦ Si ≦ 0.6%; 0.01% ≦ Al ≦ 0.1%; 0.1% ≦ Cr ≦ 0.5%; 0.2% ≦ Mo ≦ 0.6%; 0.001% ≦ Nb ≦ 0.1%; 0.001% ≦ Ti ≦ 0.1%; 0.0005% ≦ B ≦ 0.005%; 0% ≦ S ≦ 0.09%; 0% ≦ P ≦ 0.09%; 0% ≦ N ≦ 0.09%; 0% ≦ V≦ 0.1%; 0% ≦ Ni ≦ 1%; 0% ≦ Cu ≦ 1%; 0% ≦Sn≦ 0.1%; 0% ≦ Pb≦ 0.1%; 0% ≦ Sb≦ 0.1%; 0.001% ≦ Ca≦ 0.01%; the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel consisting of, by area percentage, martensite from 50% to 70%, ferrite from 10% to 30% and Bainite from 10% to 35%.

IPC Classes  ?

  • C22C 38/38 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
  • C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
  • C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
  • C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
  • C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 6/02 - Hardening by precipitation
  • C21D 1/18 - HardeningQuenching with or without subsequent tempering
  • C21D 1/22 - Martempering

88.

A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL

      
Application Number IB2023059055
Publication Number 2025/056943
Status In Force
Filing Date 2023-09-13
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Champemaud, Sébastien
  • Ekiz, Elvan
  • Liebeherr, Martin
  • Puype, Athina
  • Saikaly, Wahib
  • Schiavone, Lucas

Abstract

The patent relates to a method of production of a non-oriented electrical steel sheet comprising a step of warm rolling said hot rolled steel sheet, wherein said warm rolling comprises five to eight rolling passes, wherein - the warm rolling comprises a peak temperature rolling pass being the fourth or fifth rolling passes, having an entry temperature of the steel sheet from 210°C to 250°C and being the warm rolling pass having the greatest entry temperature, - the rolling passes prior said peak rolling temperature rolling pass are performed with an entry temperature of the steel sheet from 170°C to 230°C, - the entry temperature of the steel sheet for the warm rolling passes after said peak temperature rolling is from 10°C to 30°C lower than the previous rolling pass.

IPC Classes  ?

  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • H01F 1/147 - Alloys characterised by their composition
  • H01F 1/16 - Magnets or magnetic bodies characterised by the magnetic materials thereforSelection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets

89.

METHOD FOR DETERMINING AN OPTIMIZED SILICON CONTENT IN LIQUID STEEL

      
Application Number IB2023059061
Publication Number 2025/056946
Status In Force
Filing Date 2023-09-13
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Rivaux, Benjamin
  • Musik, Céline
  • Ahtoy, Evangeline
  • Javadi Doodran, Tannaz

Abstract

A method to calculate an optimized amount of silicon to be added in a liquid steel produced using copper-containing scrap. The invention is also related to a method of hot rolling a steel semi-product resulting from the casting of a liquid steel produced using copper-containing scrap.

IPC Classes  ?

  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C21C 5/46 - Details or accessories
  • C21C 7/00 - Treating molten ferrous alloys, e.g. steel, not covered by groups
  • C22C 38/16 - Ferrous alloys, e.g. steel alloys containing copper
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals

90.

A METHOD FOR HOT ROLLING A STEEL PRODUCT

      
Application Number IB2023059062
Publication Number 2025/056947
Status In Force
Filing Date 2023-09-13
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Ahtoy, Evangeline
  • Musik, Céline

Abstract

A method for hot rolling a steel semi product comprising the estimation of the composition of the liquid steel to be cast, said liquid steel being produced using copper-containing scrap, and the calculation of the melting temperature of the copper phase formed on the semi-product during casting to reheat the semi-product at an optimised reheating temperature.

IPC Classes  ?

  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21C 5/46 - Details or accessories
  • C21C 5/52 - Manufacture of steel in electric furnaces
  • C21C 5/56 - Manufacture of steel by other methods
  • C21C 7/00 - Treating molten ferrous alloys, e.g. steel, not covered by groups
  • C22C 38/60 - Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium or antimony, or more than 0.04% by weight of sulfur
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C22C 38/16 - Ferrous alloys, e.g. steel alloys containing copper

91.

A METHOD FOR HOT ROLLING A STEEL PRODUCT

      
Application Number IB2023059063
Publication Number 2025/056948
Status In Force
Filing Date 2023-09-13
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Ahtoy, Evangeline
  • Musik, Céline

Abstract

A method for hot rolling a steel semi-product, comprising the steps of producing a liquid steel, said production step comprising the melting of steel scrap comprising copper, estimating the amounts of copper %Cuest, tin %Snest, antimony %Sbest, sulphur %Sest, in said produced liquid steel, casting the liquid steel to produce a semi-product, reheating the semi product to a reheating temperature TR and hot rolling the reheated semi-product. The method further comprises the calculation of optimized amounts of tin, antimony, and sulfur.

IPC Classes  ?

  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21C 5/52 - Manufacture of steel in electric furnaces
  • C21C 5/56 - Manufacture of steel by other methods
  • C21C 7/00 - Treating molten ferrous alloys, e.g. steel, not covered by groups
  • C22C 38/60 - Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium or antimony, or more than 0.04% by weight of sulfur

92.

METHOD FOR DETERMINING BEAM-TO-REGION ASSIGNMENT DATA FOR A POWDER-BED BEAM FUSION MANUFACTURING DEVICE

      
Application Number IB2023059071
Publication Number 2025/056949
Status In Force
Filing Date 2023-09-13
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Serrano Ortega, Maria Luisa
  • Fernandez Garcia, Efren
  • Martinez Alvarez, Juan Manuel
  • Jimenez Meana, Jorge

Abstract

The instant technology relates in particular to a method for determining beam-to-region assignment data for a powder-bed beam fusion device, the method comprising: - s2) for an ensemble of hatch-lines to be gradually solidified using beam irradiation, partitioning the ensemble of hatch-lines into a plurality of distinct subsets, each gathering some of the hatch-lines and forming a region (R1 – R8) to be processed by one of one or more beams of the device, said partitioning comprising, for at least some of the regions, grouping some of the hatch-lines, each untruncated, the hatch-lines being located one aside the other and being distributed one after the other successively along a given direction perpendicular to the hatch-lines, - s3) Determining the beam-to-region assignment data.

IPC Classes  ?

  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
  • B22F 10/85 - Data acquisition or data processing for controlling or regulating additive manufacturing processes
  • B22F 12/45 - Two or more
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • G06F 30/20 - Design optimisation, verification or simulation

93.

COLD ROLLED AND HEAT-TREATED STEEL SHEET AND METHOD OF MANUFACTURING THE SAME

      
Application Number IB2023059172
Publication Number 2025/056959
Status In Force
Filing Date 2023-09-15
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Dieudonne, Thomas
  • Caoduro, Loïc
  • Becheter, Romain

Abstract

The invention deals with a cold-rolled and heat-treated steel sheet, made of a steel having a composition comprising, by weight percent: C : 0.03 - 0.25 % Mn : 3.0 - 8.0 % Si : 0.1 - 2.0 % Al: 0.03 - 3.0% Mo : 0.01 - 0.5 % S < 0.010 % P < 0.020 % N < 0.02 % and comprising optionally one or more of the following elements, in weight percentage: B< 0.004 % Ti < 0.04 % Nb < 0.1 % Cr < 0.80 % the remainder of the composition being iron and unavoidable impurities resulting from the smelting, said steel sheet having a microstructure comprising, in surface fraction, - from 5% to 50% of retained austenite, - the rest being ferrite.

IPC Classes  ?

  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/12 - Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium or niobium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/18 - HardeningQuenching with or without subsequent tempering
  • C21D 1/19 - HardeningQuenching with or without subsequent tempering by interrupted quenching

94.

METHOD FOR DETERMINING BEAM-TO-REGION ASSIGNMENT DATA FOR A POWDER-BED BEAM FUSION MANUFACTURING DEVICE

      
Application Number IB2024058683
Publication Number 2025/057029
Status In Force
Filing Date 2024-09-06
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Martinez Alvarez, Juan Manuel
  • Fernandez Garcia, Efren
  • Jimenez Meana, Jorge
  • Serrano Ortega, Maria Luisa

Abstract

The instant technology relates in particular to a method for determining beam-to-region assignment data for a powder-bed beam fusion device, the method comprising: - s2) for an ensemble of hatch-lines to be gradually solidified using beam irradiation, partitioning the ensemble of hatch-lines into a plurality of distinct subsets, each gathering some of the hatch-lines and forming a region (R1 – R8) to be processed by one of one or more beams of the device, said partitioning comprising, for at least some of the regions, grouping some of the hatch-lines, each untruncated, the hatch-lines being located one aside the other and being distributed one after the other successively along a given direction perpendicular to the hatch-lines, - s3) Determining the beam-to-region assignment data.

IPC Classes  ?

  • B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/85 - Data acquisition or data processing for controlling or regulating additive manufacturing processes
  • B22F 12/45 - Two or more
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
  • B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
  • G06F 30/20 - Design optimisation, verification or simulation
  • G06F 113/10 - Additive manufacturing, e.g. 3D printing
  • G06F 119/18 - Manufacturability analysis or optimisation for manufacturability

95.

ACID REGENERATION PROCESS FOR PICKLING PROCESS

      
Application Number IB2024058773
Publication Number 2025/057051
Status In Force
Filing Date 2024-09-10
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor Botas Velasco, Cristina

Abstract

22424.22O + 2 HCl, so as to obtain a reaction mixture comprising hydrochloric acid and hydrated forms of iron sulphate, wherein said reactants comprises from 5 to 40 weight percent of sulphuric acid and ii. distilling said reaction mixture to obtain a distillate and a concentrate, iii. mixing said concentrate with water such that the weight ratio between the concentrate and the water is from 0.1 to 10, to obtain an aqueous solution, iv. setting said aqueous solution to a temperature from -10 to 50°C to obtain a liquid phase and a solid phase, v. separating said liquid phase and said solid phase obtained in step iv.

IPC Classes  ?

  • C01G 49/14 - Sulfates
  • C01B 7/03 - Preparation from chlorides
  • C01B 7/07 - Purification
  • C02F 1/04 - Treatment of water, waste water, or sewage by heating by distillation or evaporation
  • C23G 1/36 - Regeneration of waste pickling liquors

96.

COLD ROLLED AND HEAT-TREATED STEEL SHEET AND METHOD OF MANUFACTURING THE SAME

      
Application Number IB2024058783
Publication Number 2025/057056
Status In Force
Filing Date 2024-09-10
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Dieudonne, Thomas
  • Caoduro, Loïc
  • Becheter, Romain

Abstract

The invention deals with a cold-rolled and heat-treated steel sheet, made of a steel having a composition comprising, by weight percent: C : 0.03 - 0.25 %, Mn : 3.5 – 7.0 %, Si : 0.1 – 2.0 %, Al: 0.5 – 3.0%, Mo : 0.01 – 0.5 %, S ≤ 0.010 %, P ≤ 0.020 %, N ≤ 0.02 %, and comprising optionally one or more of the following elements, in weight percentage: B≤ 0.004 %, Ti ≤ 0.04 %, Nb ≤ 0.1 %, Cr ≤ 0.80 %, the remainder of the composition being iron and unavoidable impurities resulting from the smelting, said steel sheet having a microstructure comprising, in surface fraction, - from 5% to 50% of retained austenite, - the rest being ferrite.

IPC Classes  ?

  • C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
  • C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
  • C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
  • C22C 38/12 - Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium or niobium
  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
  • C21D 6/00 - Heat treatment of ferrous alloys
  • C21D 1/18 - HardeningQuenching with or without subsequent tempering
  • C21D 1/19 - HardeningQuenching with or without subsequent tempering by interrupted quenching

97.

A METHOD FOR HOT ROLLING A STEEL PRODUCT

      
Application Number IB2024058817
Publication Number 2025/057070
Status In Force
Filing Date 2024-09-11
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Ahtoy, Evangeline
  • Musik, Céline

Abstract

A method for hot rolling a steel semi product comprising the estimation of the composition of the liquid steel to be cast, said liquid steel being produced using copper-containing scrap, and the calculation of the melting temperature of the copper phase formed on the semi-product during casting to reheat the semi-product at an optimised reheating temperature.

IPC Classes  ?

  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21C 5/46 - Details or accessories
  • C21C 5/52 - Manufacture of steel in electric furnaces
  • C21C 5/56 - Manufacture of steel by other methods
  • C21C 7/00 - Treating molten ferrous alloys, e.g. steel, not covered by groups
  • C22C 38/60 - Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium or antimony, or more than 0.04% by weight of sulfur
  • C21D 9/46 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals
  • C22C 38/16 - Ferrous alloys, e.g. steel alloys containing copper

98.

A METHOD FOR HOT ROLLING A STEEL PRODUCT

      
Application Number IB2024058819
Publication Number 2025/057071
Status In Force
Filing Date 2024-09-11
Publication Date 2025-03-20
Owner ARCELORMITTAL (Luxembourg)
Inventor
  • Ahtoy, Evangeline
  • Musik, Céline

Abstract

A method for hot rolling a steel semi-product, comprising the steps of producing a liquid steel, said production step comprising the melting of steel scrap comprising copper, estimating the amount of copper %Cuest, and optionally of tin %Snest, antimony %Sbest, sulphur %Sest, in said produced liquid steel, casting the liquid steel to produce a semi-product, reheating the semi product to a reheating temperature TR and hot rolling the reheated semi-product. The method further comprises the calculation of optimized amounts of tin, antimony, and sulfur.

IPC Classes  ?

  • C22C 38/00 - Ferrous alloys, e.g. steel alloys
  • C21C 5/52 - Manufacture of steel in electric furnaces
  • C21C 5/56 - Manufacture of steel by other methods
  • C21C 7/00 - Treating molten ferrous alloys, e.g. steel, not covered by groups
  • C22C 38/60 - Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium or antimony, or more than 0.04% by weight of sulfur

99.

S650GD-HyPer

      
Application Number 019156257
Status Pending
Filing Date 2025-03-13
Owner ArcelorMittal (Luxembourg)
NICE Classes  ? 06 - Common metals and ores; objects made of metal

Goods & Services

Common metals and their alloys; iron, unprocessed or semi-processed steel products; stainless steel, carbon steel, tinplate, hardened steel, in the form of billets, blooms, slabs, sheets, strips, foils, ribbons, blanks, cylinders, coils, strips, profiles, bars, beams, piles, balls, rods, logs, ingots; tubes, pipes, sections, plates, rings, springs, piles, girders, foils, hoops, joists and other shapes; non-electric metallic cables and wires, including metal welding wires and barbed wires; clad steel, coated steel as notably galvanized steel, chromium-plated steel, aluminium-coated steel; coated steel sheets or plates; prelacquered steel; pre-painted steel; metal building materials; metal tanks and metal containers; metal parts for vehicles, not included in other classes; metal materials for railway tracks; metal street furniture.

100.

STEEL SHEET FOR TOP COVER OF BATTERY PACK AND ITS MANUFACTURING METHOD

      
Application Number 18292737
Status Pending
Filing Date 2022-06-24
First Publication Date 2025-03-13
Owner ArcelorMittal (Luxembourg)
Inventor
  • Sanzey, Pascale
  • Machado Amorim, Tiago
  • Krim, Tarek
  • Dosdat, Laurence
  • Besson, Aurélie

Abstract

A top cover of battery pack including a metallic coated steel sheet wherein the metallic coating is based on aluminum and includes optionally silicon and unavoidable impurities.

IPC Classes  ?

  • H01M 50/276 - Inorganic material
  • H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
  1     2     3     ...     26        Next Page