Abstract

A steel composition includes, in wt. %: C: 0.25-0.35; Si: 0.20-0.35; Mn: 0.40-0.60; Cr: 1.20-1.70; Ni: 1.40-1.90; Mo: 0.15-0.25; Al: 0.015-0.035; Nb: 0.001-0.040; V: 0.001-0.060; N: 0.0030-0.0120; Ca: 0.0010-0.0030; and Fe. The wrought article made from this composition has a balanced set of mechanical properties including strength, ductility and toughness including resistance to fatigue crack propagation.

IPC Classes  ?

• C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
• C21D 1/18 - HardeningQuenching with or without subsequent tempering
• C21D 6/00 - Heat treatment of ferrous alloys
• C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
• 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 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
• C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
• C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
• 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 38/60 - Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium or antimony, or more than 0.04% by weight of sulfur

Abstract

A steel composition, in particular for manufacturing a wrought steel article, in particular a seamless pressure vessel, such as a bottle or large cylinder for storage and/or transportation of compressed gas, particularly hydrogen, comprises, in wt.%: C: 0.25 - 0.35; Si: 0.20 - 0.35; Mn: 0.40 - 0.60; Cr: 1.20 - 1.70; Ni: 1.40 - 1.90; Mo: 0.15 - 0.25; Al: 0.015 - 0.035; Nb: 0.001 - 0.040; V: 0.001 - 0.060; N: 0.0030 - 0.0120; Ca: 0.0010 - 0.0030; Fe and inevitable impurities; the optional elements, if any,W: 0 - 0.20; Ti: 0 - 0.025; B: 0 - 0.0030; the inevitable impurities, if present, comprising one or more of the elements Cu: 0 - 0.30; S: 0 - 0.01; P: 0 - 0.015; As: 0 - 0.020; Sb: 0 - 0.005; Sn: 0 - 0.025; Pb: 0 - 0.01; O: 0 - 0.003; H: 0 - 0.00030. The wrought article made from this composition has a balanced set of mechanical properties including strength, ductility and toughness including resistance to fatigue crack propagation.

IPC Classes  ?

• B21B 19/04 - Rolling basic material of solid, i.e. non-hollow, structurePiercing
• C21D 1/18 - HardeningQuenching with or without subsequent tempering
• C21D 6/00 - Heat treatment of ferrous alloys
• C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
• 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 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
• C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
• C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
• 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 38/60 - Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium or antimony, or more than 0.04% by weight of sulfur

Abstract

A steel composition, in particular for manufacturing a wrought steel article, in particular a seamless pressure vessel, such as a bottle or large cylinder for storage and/or transportation of compressed gas, particularly hydrogen, comprises, in wt.%: C: 0.25 - 0.35; Si: 0.20 - 0.35; Mn: 0.40 - 0.60; Cr: 1.20 - 1.70; Ni: 1.40 - 1.90; Mo: 0.15 - 0.25; Al: 0.015 - 0.035; Nb: 0.001 - 0.040; V: 0.001 - 0.060; N: 0.0030 - 0.0120; Ca: 0.0010 - 0.0030; Fe and inevitable impurities; the optional elements, if any,W: 0 - 0.20; Ti: 0 - 0.025; B: 0 - 0.0030; the inevitable impurities, if present, comprising one or more of the elements Cu: 0 - 0.30; S: 0 - 0.01; P: 0 - 0.015; As: 0 - 0.020; Sb: 0 - 0.005; Sn: 0 - 0.025; Pb: 0 - 0.01; O: 0 - 0.003; H: 0 - 0.00030. The wrought article made from this composition has a balanced set of mechanical properties including strength, ductility and toughness including resistance to fatigue crack propagation.

IPC Classes  ?

• 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 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
• C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
• C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
• 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 38/60 - Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium or antimony, or more than 0.04% by weight of sulfur
• C21D 1/18 - HardeningQuenching with or without subsequent tempering
• C21D 6/00 - Heat treatment of ferrous alloys
• C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
• B21B 19/04 - Rolling basic material of solid, i.e. non-hollow, structurePiercing

Abstract

Disclosed herein are embodiments of a seamless quenched and tempered steel pipe having a wall thickness (WT) higher than or equal to 35 mm and lower than or equal to 80 mm. Embodiments of the steel pipe can comprise C, Mn, Cr, Ni, Mo, Al, Ca, N, Nb, Ti, Zr, and Ta. Further, for some embodiments of the steel pipe wherein, defining a first parameter P1=50×C+Cr+10×Mo+70×V, the chemical composition can satisfy a first condition P1≦8.0.

IPC Classes  ?

• C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
• C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
• 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 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
• F16L 9/02 - Rigid pipes of metal
• C22C 38/00 - Ferrous alloys, e.g. steel alloys

Abstract

(35×Mo/WT)]+50×(V+Nb), the chemical composition satisfies a first condition P1≦14.5.

IPC Classes  ?

• C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
• C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
• 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 38/12 - Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium or niobium
• C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
• 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
• F16L 9/02 - Rigid pipes of metal
• C22C 38/00 - Ferrous alloys, e.g. steel alloys

Goods & Services

Unwrought and partly wrought common metals and their alloys; anchors, anvils, bells, rolled and cast building materials; metallic materials for railway tracks; and chains included in class 6, metallic pipes and tubes (not being boiler tubes or parts of machines), steel balls, metal casters and metal clamps for scaffolding.

Abstract

Embodiments of the present disclosure comprise carbon steels and methods of manufacturing thick walled pipes (wall thickness greater than or equal to about 35 mm) there from. In one embodiment, a steel composition is processed that yields an average prior austenite grain size greater than about 15 or 20 μm and smaller than about 100 μm. Using this composition, a quenching sequence is provided that yields a microstructure of greater than or equal to about 50% by volume, and less than or equal to about 50% by volume, lower bainite, without substantial ferrite, upper bainite, or granular bainite. After quenching, pipes may be tempered. The quenched and tempered pipes may exhibit yield strengths greater than about 450 MPa (65 ksi) or 485 (70 ksi). Mechanical property measurements find the quenched and tempered pipes suitable for 450 MPa grade and 485 MPa grade, and resistance to sulfide stress corrosion cracking.

IPC Classes  ?

• C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
• C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
• C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
• C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes

Abstract

Low-alloy steels and methods of manufacturing pipes having a wall thickness greater than or equal to about 8 mm and less than or equal to about 35 mm therefrom are provided. In one embodiment, a steel composition is processed that yields an average prior austenite grain size greater than about 15 or 20 μm and smaller than about 100 μm. A quenching sequence has been determined that yields a microstructure of greater than or equal to about 60% martensite by volume, and less than or equal to about 40% by volume lower bainite, without substantial formation of ferrite, upper bainite, or granular bainite. The yield strength of the quenched and tempered pipes may be greater than about 70 ksi, 80 ksi, or 90 ksi. The quenched and tempered pipes are suitable for 70 ksi, 80 ksi, and 90 ksi grades and resistant to sulfide stress corrosion cracking.

IPC Classes  ?

• C21D 10/00 - Modifying the physical properties by methods other than heat treatment or deformation
• C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
• C21D 1/18 - HardeningQuenching with or without subsequent tempering
• C21D 6/00 - Heat treatment of ferrous alloys
• C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
• 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 38/22 - 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 38/00 - Ferrous alloys, e.g. steel alloys
• C22C 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
• C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
• C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
• C22C 38/50 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
• C22C 38/60 - Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium or antimony, or more than 0.04% by weight of sulfur

Abstract

The present invention relates generally to metal production and, in certain embodiments, relates to methods of producing metallic tubular bars having high toughness at low temperature while concurrently possessing sulfide stress corrosion cracking resistance. Such embodiments address applications where traditional pipe solutions cannot be used, such as in more demanding environments that place ever increasing demands on the materials and supply capability. Certain embodiments relate to heavy wall seamless steel pipes for risers, line pipes and flow lines for use in the oil and gas industry, including pipes that are suitable for bending. Embodiments include carbon steels and methods of manufacturing. A quenching sequence may provide a microstructure of greater than or equal to about 50% by volume, and less than or equal to about 50% by volume lower bainite, without substantial formation of ferrite, upper bainite, or granular bainite. The pipe may be subjected to tempering.

IPC Classes  ?

• B21C 37/06 - Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided forManufacture of tubes of special shape of tubes or metal hosesCombined procedures for making tubes, e.g. for making multi-wall tubes
• C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
• 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 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
• C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
• E21B 17/00 - Drilling rods or pipesFlexible drill stringsKelliesDrill collarsSucker rodsCasingsTubings
• F16L 9/02 - Rigid pipes of metal

Abstract

The present invention relates generally to metal production and, in certain embodiments, relates to methods of producing metallic tubular bars having high toughness at low temperature while concurrently possessing sulfide stress corrosion cracking resistance. Such embodiments address applications where traditional pipe solutions cannot be used, such as in more demanding environments that place ever increasing demands on the materials and supply capability. Certain embodiments relate to heavy wall seamless steel pipes for risers, line pipes and flow lines for use in the oil and gas industry, including pipes that are suitable for bending. Embodiments include carbon steels and methods of manufacturing. A quenching sequence may provide a microstructure of greater than or equal to about 50% by volume, and less than or equal to about 50% by volume lower bainite, without substantial formation of ferrite, upper bainite, or granular bainite. The pipe may be subjected to tempering.

IPC Classes  ?

• B21C 37/06 - Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided forManufacture of tubes of special shape of tubes or metal hosesCombined procedures for making tubes, e.g. for making multi-wall tubes
• C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
• 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 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
• C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
• E21B 17/00 - Drilling rods or pipesFlexible drill stringsKelliesDrill collarsSucker rodsCasingsTubings
• F16L 9/02 - Rigid pipes of metal

Goods & Services

Slag [stone] and slag [building material].

Abstract

A method for making lined bends, wherein the smaller thinner pipe (3) is inserted into the larger thicker pipe (2), both extremities of the pipe assembly (1) are sealed by welding and the closed space is filled with nitrogen. The gas is then put under pressure and a portion of the pipe assembly (1) is heated by means of a hot induction device (9) until reaching an appropriate temperature to allow a good deformability of the metal, a bending moment then being applied while maintaining controlled pneumatic internal pressure in the interior of the pipe assembly (1).

IPC Classes  ?

• B21D 7/16 - Auxiliary equipment, e.g. for heating or cooling of bends
• B21D 7/02 - Bending rods, profiles, or tubes over a stationary forming memberBending rods, profiles, or tubes by use of a swinging forming member or abutment
• B21D 7/024 - Bending rods, profiles, or tubes over a stationary forming memberBending rods, profiles, or tubes by use of a swinging forming member or abutment by a swinging forming member
• B21D 51/24 - Making hollow objects characterised by the use of the objects high-pressure containers, e.g. boilers, bottles
• B21D 37/16 - Heating or cooling

Abstract

A nickel-based superalloy consisting in wt% of Co =1-8%; W = 7-15%; Mo =1-8%; Ta = 7-15%; Al = 4-9%; Cr <0,5%; C ≤ 0,1% and the remaining being Ni impurities having a mechanical strength at very high temperature, up to 1300°C, higher than that of the known superalloys by raising the Tsolidus of the alloy and developing an intermetallic γ' phase in high percentages by volume, higher than 70%, which maintains its properties practically unchanged until the incipient melting of the alloy, having a Tsolidus, i.e. a solvus temperature of the γ' phase higher than the Tsolidus of the alloy, i.e. the temperature at which the liquid phase starts being present.

IPC Classes  ?

• C22C 19/03 - Alloys based on nickel or cobalt based on nickel
• B21B 25/00 - Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group Accessories or auxiliary means therefor

Goods & Services

Common metals and their alloys; metal building materials; transportable buildings of metal; materials of metal for railway tracks; non-electric cables and wires of common metal; ironmongery, small items of metal hardware; pipes and tubes of metal; safes; goods of common metal not included in other classes; ores.

Abstract

The present invention pertains to steel with high mechanical resistance at room temperature and up to 130° C., good toughness and good corrosion resistance in the metal base as well as good resistance to cracking in the heat affected zones (HAZ) once the tubing is welded together, and more specifically to heavy gauge seamless steel tubing with high mechanical resistance, good toughness and good corrosion resistance called catenary conduit. The advantages of the present invention with respect to those of an the state of technology reside in providing a chemical composition for steel used to manufacture heavy gauge seamless steel tubing with high mechanical resistance, good toughness, good fissure resistance in the HAZ and good corrosion resistance and a process for manufacturing this product. These advantages are obtained by using a composition made up basically of Fe and a specific chemical composition.

IPC Classes  ?

• C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
• C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
• C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes

Goods & Services

Métaux communs et leurs alliages; matériaux de construction métalliques; constructions transportables métalliques; matériaux métalliques pour les voies ferrées; câbles et fils métalliques non électriques; serrurerie et quincaillerie métalliques; tuyaux métalliques; coffres-forts; produits métalliques non compris dans d'autres classes; minerais.

Goods & Services

Métaux communs et leurs alliages; matériaux de construction métalliques; constructions transportables métalliques; matériaux métalliques pour les voies ferrées; câbles et fils métalliques non électriques; serrurerie et quincaillerie métalliques; tuyaux métalliques; coffres-forts; produits métalliques non compris dans d'autres classes; minerais.

Goods & Services

Métaux communs et leurs alliages; matériaux de construction métalliques; constructions transportables métalliques; matériaux métalliques pour les voies ferrées; câbles et fils métalliques non électriques; serrurerie et quincaillerie métalliques; tuyaux métalliques; coffres-forts; produits métalliques non compris dans d'autres classes; minerais.

Goods & Services

Métaux communs et leurs alliages; matériaux de construction métalliques; constructions transportables métalliques; matériaux métalliques pour les voies ferrées; câbles et fils métalliques non électriques; serrurerie et quincaillerie métalliques; tuyaux métalliques; coffres-forts; produits métalliques non compris dans d'autres classes; minerais.

Goods & Services

Métaux communs et leurs alliages; matériaux de construction métalliques; constructions transportables métalliques; matériaux métalliques pour les voies ferrées; câbles et fils métalliques non électriques; serrurerie et quincaillerie métallique; tuyaux métalliques; coffres-forts; produits métalliques non compris dans d'autres classes; minerais à l'état brut.

Goods & Services

(1) Joints for metal tubular scaffolding and unassembled parts of such joints; flanged basis, ladder pins; anchoring screws; wrenches for tightening bolts; wheels with and without rubber tires for metal tubular scaffolding; welded and unwelded steel pipes, conduits, piles and columns, stakes and small pillars, trolley poles, antennae for all uses, loading booms, hooks for loading and cranes for loading, pressure tanks and bottles, cylindrical bodies and condensers for boilers, cylinder jackets, pistons and presses, tools and machine tools for drilling; simple and reinforced amiant concrete pipes, with steel plate core; fertilizers for land (natural and artificial); extinguisher preparations; tempers and chemical preparations for welding; chemical products for the conservation of edibles; adhesive substances for industry; colours, paints; lacquers; materials for protection against rust and against the deterioration of wood; dyeing materials, mordants, resins; metals in foil and in powder form for painters and decorators; industrial oils and greases (excepting edible oils, greases and essential oils); lubricants, preparations to agglomerate powder, combustible preparations (including fuels for motors), altar candles, candles, night lights and wicks; common metals, crude and semi-refined and their alloys; anchors, anvils, bells, rails, chains (exclusive of motive chains for vehicles); anelectric metal cables and wires, metallic pipes, safes and safety boxes; steel spheres; horse shoes; nails and screws; natural and artificial stone, cement, lime , mortar, plaster and sand; stone and cement pipes; asphalt, tar and bitumen, movable buildings; monuments in stone; fireplaces, plastic pipes, plastic joints, flexible non-metallic pipes.