Abrégé

The invention provides a nickel-free and cobalt-free, rust-proof austenitic steel, which meets the requirements, necessary in dentistry, concerning its corrosion resistance, its thermal expansion coefficient, its mechanical properties and its castability. For this purpose, the steel consists of, in % by mass, C: >0.2-0.8%, N: 0.3-1.3%, Si: ≤2.0%, Mn: 14-30%, Cr: 17-27%, Mo: 0-6%, W: 0-6%, Nb: 0-6%, Ga: 0-6%, Ta 0-6%, the remainder being iron and unavoidable impurities. The content of impurities complies with the stipulations in DIN EN ISO 22674:2016-09 for dental materials. The steel composed has an austenitic structure, an offset yield strength Rp0.2 of at least 230 MPa, a percent elongation A of more than 5%, and a modulus of elasticity of at least 150 GPa.

Classes IPC  ?

• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
• C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
• C22C 38/00 - Alliages ferreux, p. ex. aciers alliés

Abrégé

The invention relates to a steel material which allows for components to be formed with low residual stress via additive manufacturing without pre- or post-heating. The steel material consists of a steel with the following composition, in wt. %: C: 0.28-0.65%, Co: <10.0, Cr: 3.5-12.5%, optionally Mo: 0.5-12.5%, wherein the sum of the content of Cr and Mo is 4-16%, the Ni equivalent Ni_eq calculated according to the formula Ni_eq [%]=30% C+% Ni+0.5% Mn from the C-content % C, the Ni-content % Ni, the Mn-content % Mn fulfills the condition (1) 10%≤Ni eq≤20%, and alongside C, optionally respectively up to 9% Mn and up to 4.5% Ni are provided to fulfill condition (1), wherein the Cr equivalent Cr_eq calculated according to the formula Cr_eq [mass]=% Cr+% Mo+1.5% S+0.5% Nb+2% XX from the CR-content Cr %, the Mo-content Mo %, the Si-content Si %, the Nb-content % Nb and the sum % XX of the contents of at least one element of the group “Sc, Y, Ti, Zr, Hf, V, Ta” fulfills the condition (2) 4% Cr_eq 16%, and optionally respectively up to 2% Si, up to 2% Nb or at least one element from the group “Sc, Y, Ti, Zr, Hf, V, Ta” are provided to fulfill condition (2), wherein the total proportion of elements of this group is at most equal to the mass fraction of 2%, which Ti must not exceed if Ti is the only element selected from the group consisting of “Sc, Y, Ti, Zr, Hf, V, Ta”, and wherein the rest of the steel consists of Fe and <0.5% impurities, including 0.025% P and 50.025% S. The steel material is suited, in particular as a powder, for LPBF or LMD methods and as wire for the WAAM method.

Classes IPC  ?

• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• B23K 26/342 - Soudage de rechargement
• B23K 9/04 - Soudage pour d'autres buts que l'assemblage de pièces, p. ex. soudage de rechargement
• B22F 10/28 - Fusion sur lit de poudre, p. ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
• C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
• C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
• C22C 38/46 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du vanadium
• C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
• C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
• C22C 38/52 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cobalt
• C22C 38/58 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et plus de 1,5% en poids de manganèse

Abrégé

The invention relates to a metal powder intended for use in an additive manufacturing process, which consists of steel particles having an average diameter of 5-150 μm and consisting of, in mass %, C: 0.15-1.0%, N: 0.15-1.0%, Si, 0.1-2.0%, Mn: 10-25%, Cr: 5-21%, Mo: 0.1-3.0%, Ni: ≤5%, remainder of iron and unavoidable impurities. The metal powder has a flow rate determined in accordance with DIN EN ISO 4490 of less than 30 sec/50 g. Using a metal powder according to the invention, reliable high-load-bearing components can be produced by additive manufacturing. Accordingly, a metal powder according to the invention is particularly suitable for the manufacture of machine elements that are exposed to high loads and of medical components that are used in or on the human or animal body. The invention also provides a method which reliably allows components with optimised mechanical properties to be manufactured from metal powder according to the invention on the basis of an additive manufacturing process.

Classes IPC  ?

• C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
• B22F 10/28 - Fusion sur lit de poudre, p. ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
• B22F 10/64 - Traitement de pièces ou d'articles après leur formation par des moyens thermiques
• B22F 10/66 - Traitement de pièces ou d'articles après leur formation par des moyens mécaniques
• B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
• B33Y 40/20 - Posttraitement, p. ex. durcissement, revêtement ou polissage
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive

Abrégé

The invention provides a nickel-free and cobalt-free, rust-proof austenitic steel, which meets the requirements, necessary in dentistry, concerning its corrosion resistance, its thermal expansion coefficient, its mechanical properties and its castability. For this purpose, the steel according to the invention consists of, in % by mass: C: > 0.2-0.8%, N: 0.3-1.3%, Si: < 2.0%, Mn: 14-30%, Cr: 17-27%, Mo: 0-6%, W: 0-6%, Nb: 0-6%, Ga: 0-6%, Ta 0-6%, the remainder being iron and unavoidable impurities, wherein the content of impurities complies with the stipulations in DIN EN ISO 22674:2016-09 for dental materials. The steel composed according to the invention has an austenitic structure, an offset yield strength Rp0.2 of at least 230 MPa, a percent elongation A of more than 5%, and a modulus of elasticity of at least 150 GPa.

Classes IPC  ?

• A61K 6/844 - Métaux nobles
• C22C 1/02 - Fabrication des alliages non ferreux par fusion
• C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
• C22C 38/26 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du niobium ou du tantale
• C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse

Abrégé

The invention relates to a powder for use in a powder metallurgy or additive method which enables the creation of a steel material which is optimized in respect of the hardness and wear resistance thereof, to a correspondingly created steel material and to a method by means of which components can be reliably created, wherein the hardness and wear resistance of said components fulfill the highest requirements. To this end, a powder according to the invention contains steel particles of a steel which is composed, in mass %, of C: < 0.5%, Si: < 2.0%, Mn: < 2.0%, Cr: < 1.0%, Mo: 0.25-12%, Ni: 8-30%, optionally Co: 8-18%, optionally Cu: 0.5-5.0%, Nb: 0.05-5.0%, optionally Al: 0.05-9.75%, optionally Ti: 0.05-9.75%, with the proviso that the total of the content of Nb and, if present, Al and Ti equals 0.15% to 10%, wherein Ti, if present, is present together with Al, the remainder being iron and unavoidable impurities, which include < 0.05% P, < 0.05% S, < 0.1% N, < 0.05% B and < 0.5% O and, if Co is not present in contents of at least 8%, < 0.5% Co and, if Cu is not present in contents of at least 0.5%, < 0.5% Cu, and optionally additionally particles of at least one hard material present as a carbide, nitride, carbonitride, boride or oxide, which are mixed with the steel particles and account for 5-50 vol.% of the total volume of the powder. A steel material produced from such powder has a hardness of at least 40 HRC in the precipitation-hardened state but can be worked easily in the solution-annealed state.

Classes IPC  ?

• B22F 3/24 - Traitement ultérieur des pièces ou objets
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
• C22C 38/08 - Alliages ferreux, p. ex. aciers alliés contenant du nickel
• C22C 38/10 - Alliages ferreux, p. ex. aciers alliés contenant du cobalt
• C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
• C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
• C21D 6/00 - Traitement thermique des alliages ferreux
• C21D 6/02 - Durcissement par précipitation
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
• C22C 38/16 - Alliages ferreux, p. ex. aciers alliés contenant du cuivre

Abrégé

The invention relates to a steel material which allows for components to be formed with low residual stress via additive manufacturing without pre- or post-heating. The steel material consists of a steel with the following composition, in wt.%: C: 0.28 - 0.65 %, Co: < 10.0, Cr: 3.5 - 12.5 %, optionally Mo: 0.5 - 12.5 %, wherein the sum of the content of Cr and Mo is 4 - 16 %, the Ni equivalent Ni_eq calculated according to the formula Ni_eq [%] = 30 %C + %Ni + 0.5 %Mn from the C-content %C, the Ni-content %Ni, the Mn-content %Mn fulfills the condition (1) 10 % ≤ Ni eq ≤ 20 %, and alongside C, optionally respectively up to 9% Mn and up to 4.5% Ni are provided to fulfill condition (1), wherein the Cr equivalent Cr_eq calculated according to the formula Cr_eq [mass] = %Cr + %Mo + 1.5 %S + 0.5 %Nb + 2 %XX from the CR-content Cr%, the Mo-content Mo%, the Si-content Si%, the Nb-content %Nb and the sum %XX of the contents of at least one element of the group "Sc, Y, Ti, Zr, Hf, V, Ta" fulfills the condition (2) 4 % ≤ Cr_eq ≤ 16 %, and optionally respectively up to 2% Si, up to 2% Nb or at least one element from the group "Sc, Y, Ti, Zr, Hf, V, Ta" are provided to fulfill condition (2), wherein the total proportion of elements of this group is at most equal to the mass fraction of 2%, which Ti must not exceed if Ti is the only element selected from the group consisting of "Sc, Y, Ti, Zr, Hf, V, Ta", and wherein the rest of the steel consists of Fe and < 0.5 % impurities, including ≤ 0.025 % P and 50.025% S. The steel material is suited, in particular as a powder, for LPBF or LMD methods and as wire for the WAAM method.

Classes IPC  ?

• B22F 10/20 - Frittage ou fusion directs
• B22F 10/25 - Dépôt direct de particules métalliques, p. ex. dépôt direct de métal [DMD] ou mise en forme par laser [LENS]
• B22F 10/28 - Fusion sur lit de poudre, p. ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
• C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
• C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
• C22C 38/24 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du vanadium
• C22C 38/26 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du niobium ou du tantale
• C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
• C22C 38/30 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du cobalt
• C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
• C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
• C22C 38/46 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du vanadium
• C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
• C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
• C22C 38/52 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cobalt

Abrégé

The invention relates to a metal powder intended for use in an additive manufacturing process, which powder consists of steel particles which have an average diameter of 5 - 150 pm and consist of, in percent by weight, C: 0.15 - 1.0 %, N: 0.15 - 1.0 %, Si: 0.1 - 2.0 %, Mn: 10 - 25 %, Cr: 5 - 21 %, Mo: 0.1 - 3.0 %, Ni: < 5 %, remainder iron and unavoidable impurities, the metal powder having a flow rate determined in accordance with ISO 4490 of less than 30 sec/50 g. Reliable, highly loadable components can be produced by additive manufacture using a metal powder according to the invention. Accordingly, a metal powder according to the invention is particularly suited for the production of machine parts which are subject to high loads and of medical components which are used in or on the human or animal body. The invention also provides a method which reliably permits the production of components with optimized mechanical properties from the metal powder according to the invention on the basis of an additive manufacturing process.

Classes IPC  ?

• B22F 1/052 - Poudres métalliques caractérisées par la dimension ou la surface spécifique des particules caractérisées par un mélange de particules de dimensions différentes ou par la distribution granulométrique des particules
• B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
• B22F 10/00 - Fabrication additive de pièces ou d’objets à partir de poudres métalliques
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• B33Y 80/00 - Produits obtenus par fabrication additive
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
• C22C 38/58 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et plus de 1,5% en poids de manganèse

Abrégé

The invention relates to a metal powder intended for use in an additive manufacturing process, which powder consists of steel particles which have an average diameter of 5 - 150 pm and consist of, in percent by weight, C: 0.15 - 1.0 %, N: 0.15 - 1.0 %, Si: 0.1 - 2.0 %, Mn: 10 - 25 %, Cr: 5 - 21 %, Mo: 0.1 - 3.0 %, Ni: < 5 %, remainder iron and unavoidable impurities, the metal powder having a flow rate determined in accordance with ISO 4490 of less than 30 sec/50 g. Reliable, highly loadable components can be produced by additive manufacture using a metal powder according to the invention. Accordingly, a metal powder according to the invention is particularly suited for the production of machine parts which are subject to high loads and of medical components which are used in or on the human or animal body. The invention also provides a method which reliably permits the production of components with optimized mechanical properties from the metal powder according to the invention on the basis of an additive manufacturing process.

Classes IPC  ?

• C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
• B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
• B22F 3/24 - Traitement ultérieur des pièces ou objets
• B22F 5/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques caractérisée par la forme particulière du produit à réaliser
• B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 40/20 - Posttraitement, p. ex. durcissement, revêtement ou polissage
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• B33Y 80/00 - Produits obtenus par fabrication additive
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
• C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
• C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
• C22C 38/58 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et plus de 1,5% en poids de manganèse
• C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Abrégé

According to the invention, a steel, which is characterized by high hardness and strength together with good corrosion resistance, consists of the following in mass percent: C: < 0.02%, Si: < 2.0%, Mn: < 2.0%, Cr: 14.0-18.0%, Ni: 3.0-6.0%, Cu: 2.0-4.0%, optionally Co: < 6.0%, Nb: 1.0-5.0%, optionally W: 0.45-5.0%, the sum of the concentrations of Nb and W being at least 1.0% and at most 5%, optionally Mo: 0.25-6.0%, optionally Al: 0.25-6.0%, optionally Ti: 0.25-6.0%, the sum of the concentrations of Al and Ti, if they are present, being 0.25-6.0%, P: < 0.035%, S: < 0.035%, the remainder iron and unavoidable impurities. The invention further relates to a method for producing a component, said method being based on a steel of this type, to a component produced from the steel according to the invention and to advantageous uses of the steel.

Classes IPC  ?

• C21D 1/28 - Normalisation
• C21D 6/00 - Traitement thermique des alliages ferreux
• C21D 6/02 - Durcissement par précipitation
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
• C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
• C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
• C22C 38/48 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du niobium ou du tantale
• C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
• C22C 38/52 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cobalt
• B33Y 10/00 - Procédés de fabrication additive
• B33Y 80/00 - Produits obtenus par fabrication additive
• C21D 1/25 - Durcissement combiné à un recuit entre 300 °C et 600 °C, c.-à-d. affinage à chaud dit "Vergüten"
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
• B22F 3/15 - Compression isostatique à chaud

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal. Metal treating.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal. Metal treating.

Abrégé

The invention provides a method for producing components with a hardness of 5 - 45 HRC by using additive manufacturing methods. For this purpose, a steel alloy powder is prepared from particles consisting of, in % by mass, at least one element from the group "C, N", of which either 0.5 - 5.0% C or 0.5 - 5.0% N or 0.5 - 6.0% C and N are present, in each case optionally at least one element from the group "Si, Mn" in amounts of respectively 0.1 - 2.5%, and as carbide or nitride formers at least one element from the group "Cr, Mo, V, Ti, Nb, W" in amounts of Cr: 5 - 25%, Mo: 0.5 - 15%, V: 0.5 - 15%, Ti: 0.5 - 5%, Nb: 0.5 - 15%, or W: 0.5 - 15 %, the remainder Fe and unavoidable impurities. An additive manufacturing method in which powder particles of the steel alloy powder that are adjacent to one another are bonded together to form a steel matrix is used to form from the steel alloy powder a component in which, after cooling down to room temperature, 25% by volume of the steel matrix consists of austenite. The component is then thermally treated in such a way that 80% by volume of the steel matrix of its structure is made up of a martensitic structure and the remainder of other structural constituents and in the steel matrix there are hard phase particles that are formed from the steel of the steel alloy powder and amount to 5 - 50% by volume of the total volume of the component. The thermal treatment is carried out according to a variant I as tempering, in which the component is heated through at 400 - 700°C and/or according to a variant II as complete freezing of the component down to a temperature of < -50 °C. The invention also refers to a component of a corresponding composition and nature.

Classes IPC  ?

• B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
• B33Y 80/00 - Produits obtenus par fabrication additive
• C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
• C22C 38/24 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du vanadium
• C22C 38/36 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,7% en poids de carbone
• B22F 1/00 - Poudres métalliquesTraitement des poudres métalliques, p. ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
• B22F 3/24 - Traitement ultérieur des pièces ou objets
• C21D 1/30 - Recuit d'homogénéisation pour détruire les tensions internes
• C21D 6/00 - Traitement thermique des alliages ferreux
• C22C 1/05 - Mélanges de poudre métallique et de poudre non métallique
• C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
• C21D 6/04 - Durcissement par refroidissement au-dessous de 0° C
• C21D 1/18 - DurcissementTrempe avec ou sans revenu ultérieur
• C21D 1/26 - Méthodes de recuit
• C21D 6/02 - Durcissement par précipitation
• C21D 9/00 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet

Abrégé

The invention proposes the use of a steel powder for producing components by means of an additive manufacturing process in which the steel powder is solidified by means of selective heat input in order to model the component to be produced, said steel powder consisting of (in wt.%): C: 0 - 0.1%, Si: ≤ 1.5%, Mn: 9 - 15.0%, Mo: 0.01 - 3.0%, N: 0.004 - 0.020%, S: ≤ 0.40%, AI: 0.004 - 10.0%, B: < 0.0025%, Nb: ≤ 0.25%, Ti: ≤ 1.8%, V: ≤ 1.0%, Cu: ≤ 2.0%, Cr: ≤ 5.0%, and at least one element from the group "Ni, Mn", with the remainder consisting of iron and unavoidable impurities resulting from the production process, wherein, for the contents of Ni and Mn present alternatively or in combination with one another, the Ni content is 0.5 - 4.0% and the Mn content present alternatively or simultaneously is 9.0 - 15.0%, and wherein, for the value "Z" formed according to the formula: Z = 5 * %Ni + %Cr + 5 * %Mo from the particular Mo content %Mo, the present Ni content %Ni and/or the present Cr content %Cr of the steel powder, Z < 35 wt.%. The steel powder used according to the invention can be alloyed cost-effectively and is distinguished in that the components manufactured from it have a low tendency to form stress cracks. The invention also proposes a method that utilises a steel powder of this kind and that enables reliable production of components by application of an additive manufacturing process.

Classes IPC  ?

• C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
• B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
• B22F 3/24 - Traitement ultérieur des pièces ou objets
• C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
• C22C 38/08 - Alliages ferreux, p. ex. aciers alliés contenant du nickel
• C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
• C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
• C22C 38/16 - Alliages ferreux, p. ex. aciers alliés contenant du cuivre
• C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
• C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
• B33Y 80/00 - Produits obtenus par fabrication additive
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• B33Y 10/00 - Procédés de fabrication additive
• B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p. ex. par frittage ou fusion laser sélectif

Abrégé

The invention relates to the use of a steel powder consisting, in percent by weight, of C: 0 - 0.1 %, Si: ≤ 1.5 %, Mn: 0.05 - 4.0 %, Mo: 0.01 - 3.0 %, N: 0.004 - 0.020 %, S: ≤ 0.40 %, AI: 4.0 - 10.0 %, B: < 0.0025 %, Nb: ≤ 0.25 %, Ti: 0.5 - 1.8 %, V: ≤ 1.0 %, Cu: ≤ 2.0 %, Cr: ≤ 5.0 %, and optionally Ni to a content of 0.5 - 4.0 %, with the remainder being iron and unavoidable impurities inherent in the production process, where, for the value for Z formed in accordance with the formula Z = 5 * %Ni + %Cr + 5 * %Mo from the particular Mo content %Mo, the Ni content %Ni and/or the Cr content %Cr each present in the steel powder, Z < 35. Said steel powder is used for the production of components by an additive manufacturing method in which the steel powder is hardened by means of selective heat application to form the component to be produced. The steel powder used in accordance with the invention is alloyable at low cost and is characterized by the components produced using said powder having a low tendency to stress cracking. The invention also relates to a method using a steel powder of this nature which permits reliable production of components by the use of an additive manufacturing method and provides a component produced from the steel powder suggested for use in accordance with the invention.

Classes IPC  ?

• C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
• B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
• B22F 3/24 - Traitement ultérieur des pièces ou objets
• C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
• C22C 38/08 - Alliages ferreux, p. ex. aciers alliés contenant du nickel
• C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
• C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
• C22C 38/16 - Alliages ferreux, p. ex. aciers alliés contenant du cuivre
• C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
• C22C 38/50 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du titane ou du zirconium
• B33Y 80/00 - Produits obtenus par fabrication additive
• B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
• B33Y 10/00 - Procédés de fabrication additive
• B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p. ex. par frittage ou fusion laser sélectif

Produits et services

Crude and semi-wrought common metals, in particular steel, stainless steel and bright steel; half-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Abrégé

The invention shows possibilities which allow simplified production of implants or prostheses, specifically of dental implants or prostheses, by applying subtractive processes. For this purpose, the invention proposes the use of a precipitation-hardening or solid-solution-strengthening, biocompatible cobalt-based alloy for the production of blanks. Such blanks are provided in the soft state. Subsequently, each component (implant or prosthesis) is produced from the soft blank by means of material-removing machining. Subsequently, a heat-treatment of the implant or prosthesis then takes place to adjust the hardness thereof by means of precipitation hardening or solid-solution formation.

Classes IPC  ?

• C22C 19/07 - Alliages à base de nickel ou de cobalt, seuls ou ensemble à base de cobalt
• A61L 27/04 - Métaux ou alliages
• C22F 1/10 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du nickel ou du cobalt ou de leurs alliages
• A61C 13/00 - Prothèses dentairesLeurs procédés de fabrication
• A61C 13/20 - Méthodes ou dispositifs pour souder, mouler, façonner ou fondre

Abrégé

The invention relates to a cobalt-based composite material that offers an optimized combination of properties for the production of components that, in practical use, are subject to high thermal stresses of typically more than 400°C in conjunction with high corrosive and abrasive stresses. For this purpose, the composite material of the invention has been produced by powder metallurgy and has a matrix having the following composition (in % by weight): C: 0.2-3.0%, Si: ឬ 1.5%, Mn: ឬ 1.5%, Cr: 27.0-32.0%, Ni: ឬ 2.0%, Fe: ឬ 2.0%, at least one element from the group "Mo, W" with the proviso that Mo: ≤ 6.0%, W: ≤ 14.0%, where Mo ≥ 4.0% when W ឬ 0.5% and W ≥ 4.0% when Mo ឬ 0.5%, the balance being cobalt and unavoidable impurities. According to the invention, hard substance particles have been embedded in the matrix in contents of 2.5-30% by weight. For production of components from the material of the invention, a cobalt alloy powder of a composition as per the alloy envisaged by the invention for the matrix is provided. This cobalt alloy powder is mixed with hard substance particles such that the content of hard substance particles in the cobalt alloy powder/hard substance particle mixture obtained is 2.5% to 30% by weight. A solid semifinished product is formed from the cobalt alloy powder/hard substance particle mixture by a sintering method or an additive method. Subsequently, the semifinished product obtained is processed to give the finished component.

Classes IPC  ?

• C22C 1/04 - Fabrication des alliages non ferreux par métallurgie des poudres
• C22C 19/07 - Alliages à base de nickel ou de cobalt, seuls ou ensemble à base de cobalt
• C22C 32/00 - Alliages non ferreux contenant entre 5 et 50% en poids d'oxydes, de carbures, de borures, de nitrures, de siliciures ou d'autres composés métalliques, p. ex. oxynitrures, sulfures, qu'ils soient soient ajoutés comme tels ou formés in situ

Abrégé

A method for simply producing components suitable for use under high loads and risks of wear and which have a core portion which consists of a metal material and a wear-resistant layer on a peripheral surface of the core portion is disclosed. A core portion blank is provided and consists of the metal material whose dimension in a first spatial direction is greater than the desired finished dimension of the core and whose second dimension is smaller than the desired finished dimension is provided. A material that forms a wear-resistant layer in the component is applied to a peripheral surface of the core portion blank. The composite body is shaped to form the component. The component may then be optionally finished.

Classes IPC  ?

• B21J 5/00 - Méthodes pour forger, marteler ou presserÉquipement ou accessoires particuliers
• B21B 27/03 - Cylindres avec des chemises
• B22F 7/08 - Fabrication de couches composites, de pièces ou d'objets à base de poudres métalliques, par frittage avec ou sans compactage de pièces ou objets composés de parties différentes, p. ex. pour former des outils à embouts rapportés avec une ou plusieurs parties non faites à partir de poudre
• B22F 3/15 - Compression isostatique à chaud
• B22F 3/17 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet par forgeage
• B23K 10/02 - Soudage par plasma
• B21K 1/06 - Fabrication d'éléments de machines d'arbres
• B23P 15/00 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe
• B21K 5/00 - Fabrication d'outils ou de parties d'outils, p. ex. de pinces
• B21K 1/12 - Fabrication d'éléments de machines d'arbres de section de forme particulière
• B29C 48/505 - Vis
• B21K 1/10 - Fabrication d'éléments de machines d'arbres de section circulaire
• B23K 101/06 - Tubes
• B23K 103/04 - Alliages d'acier
• B22F 5/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques caractérisée par la forme particulière du produit à réaliser
• B22F 3/24 - Traitement ultérieur des pièces ou objets
• B29C 48/03 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet caractérisées par la forme à l’extrusion de la matière extrudée

Produits et services

Crude and semi-wrought common metals, in particular steel, stainless steel and bright steel; half-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Abrégé

The invention relates to a steel material which offers an optimized combination of properties for producing components, which are exposed to high mechanical, corrosive, thermal and abrasive loads when in use. The claimed powder metallurgy produced steel material is produced and comprises the following (in wt. %): C: 3.9 - 5.0 %, Si: 0.3 - 2.0 %, Mn: 0.3 - 2.0 %, P: 0 - ឬ0.035 %, S: 0 - ឬ0.35 %, N: 0 - ឬ0.12 %, Cr: 11.0 - 15.0 %, Mo: 0.5 - 2.0 %, V: 13.5 - 16.5 %, respectively optionally one or several elements from the group "Nb, Ni, Co, W”, wherein the content of the elements “Ni, Co and W” is at the most 1.0 % and content of Nb is at the most 2.0 %, the remainder being iron and unavoidable impurities, wherein in the thus composed steel matrix, up to 30 wt. % hard material particles can be present. A solid semi-finished product is formed from a steel alloy powder of said type according to a sintering method or an additive method, said product being thermally treated and then being processed to form the respective component

Classes IPC  ?

• C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
• C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
• C22C 38/24 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du vanadium
• B21B 27/02 - Forme ou structure des cylindres
• B22F 3/105 - Frittage seul en utilisant un courant électrique, un rayonnement laser ou un plasma
• B22F 3/15 - Compression isostatique à chaud

Abrégé

The invention relates to a steel material which has a minimized density, a good wear resistance and thus a high service life with maximized resistance to extreme changes in temperature and an also optimized corrosion resistance. The claimed material is suitable, in particular for producing components which are exposed to high mechanical, corrosive, thermal and abrasive loads are exposed when in use. The claimed powder metallurgy produced steel material is produced and comprises the following (in wt. %): C: 1.5 - 5.0 %, Si: 0.3 - 2.0 %, Mn: 0.3 - 2.0 %, P: 0 - ឬ0.035 %, S: 0 - ឬ0.35 %, N: 0 - ឬ0.1 %, Cr: 3.0 - 15.0 %, Mo: 0.5 - 2.0 %, V: 6.0 - 18.0 %, respectively optionally an element or several elements from the group "Nb, Ni, Co, W", wherein the content of Ni, Co and W is at the most 1.0 % and the content of Nb is at the most 2.0 %, the remainder being iron and unavoidable impurities. Hard material particles added separately to the steel matrix are embedded in a content of between 2.5 - 30 wt. %. A solid semi-finished product is formed from a steel alloy powder of said type according to a sintering method or an additive method, said product being thermally treated and then being processed to form the respective component.

Classes IPC  ?

• C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
• B21B 27/02 - Forme ou structure des cylindres
• C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
• C22C 38/24 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du vanadium

Produits et services

Crude and semi-wrought common metals, in particular steel, stainless steel and bright steel; half-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Abrégé

The invention relates to an iron-based reduced-density material, the mechanical properties of which make said material suitable for a broad range of applications, in particular in the automotive industry. For this purpose, the steel has a density of less than 7.25 kg/dm3 according to the invention and consists of (in wt%) C: up to 0.20%, Si: 0.1 - 3.50%, Mn: 0.1 - 3.50%, N: up to 0.020%, S: up to 0.40%, P: up to 0.009%, Al: 6.0 - 25.0%, Ti: 0.55 - 10.0%, Cr: up to 6.0%, Mo: up to 3.0%, Ni: up to 4.0%, V: up to 1.0%, W: up to 1.0%, Cu: up to 4%, B: up to 0.08%, Nb: up to 1.5%, the remainder iron and unavoidable production-related impurities. The microstructure of the steel has more than 85 vol% ferrite and up to 10 vol% austenite and, as the remainder, contents of intermetallic phases and fractions of carbide, nitride, bainite, or pearlite.

Classes IPC  ?

• C21D 8/02 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de produits plats ou de bandes
• C21D 9/46 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour tôles
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
• C22C 38/08 - Alliages ferreux, p. ex. aciers alliés contenant du nickel
• C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
• C22C 38/14 - Alliages ferreux, p. ex. aciers alliés contenant du titane ou du zirconium
• C22C 38/16 - Alliages ferreux, p. ex. aciers alliés contenant du cuivre
• C22C 38/18 - Alliages ferreux, p. ex. aciers alliés contenant du chrome
• C22C 38/20 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du cuivre
• C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
• C22C 38/24 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du vanadium
• C22C 38/26 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du niobium ou du tantale
• C22C 38/28 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du titane ou du zirconium
• C22C 38/32 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du bore
• C22C 38/34 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de silicium
• C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
• C22C 38/40 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel
• C22C 38/58 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et plus de 1,5% en poids de manganèse

Abrégé

The invention demonstrates the possibilities permitting a simplified production of implants or prosthetics, in particular dental implants or prosthetics, using subtractive methods. For this purpose, the invention relates to the use of a bio-compatible cobalt base alloy, for precipitation hardening or solidifying via mixed crystal formation, for the production of blanks. Blanks of this type are provided in a soft state in the course of the method according to the invention. Subsequently, the respective component (implant or prosthetic) is produced from the soft blank via material-removing machining. Finally, a heat treatment of the implant or prosthetic is then carried out in order to set the hardness thereof via precipitation hardening or mixed crystal formation.

Classes IPC  ?

• A61L 27/04 - Métaux ou alliages

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Steel; stainless steel; bright steel; semi-finished products in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of steel, stainless steel and bright steel.

Abrégé

The invention provides a steel, which has a high strength, without complex heat treatment processes having to be performed for this purpose, and at the same time has a low tendency to warp. For this purpose, the high-grade structural steel according to the invention consists of (in % by weight) up to 0.25% C, up to 0.45% Si, 0.20 - 2.00% Mn; up to 4.00% Cr, 0.6 - 3.0% Mo, 0.004 - 0.020% N, up to 0.40% S, 0.001 - 0.035% Al, 0.0005 - 0.0025% B, up to 0.015% Nb, up to 0.01% Ti, up to 0.10% V, up to 1.5% Ni and up to 2.0% Cu, the remainder iron and unavoidable impurities, wherein the Al content %Al, the Nb content %Nb, the Ti content %Ti, the V content %V and the N content %N of the high-grade structural steel respectively meet the following condition: %Al/27 + %Nb/45 + %Ti/48 + %V/25 > %N/3.75. The high-grade structural steel according to the invention has a yield strength of at least 750 MPa, a tensile strength of at least 950 MPa and a microstructure which consists at least 80% by volume of bainite and in total at most 20% by volume of residual austenite, ferrite, pearlite and/or martensite. On account of its combination of properties, the steel according to the invention is suitable in particular for the production of forged parts with great changes in cross section over its length. The invention also discloses a method for producing such forged components.

Classes IPC  ?

• C21D 1/02 - Durcissement d'objets ou de matériaux formés par forgeage ou laminage sans autre chauffage que celui nécessaire à la mise en forme
• C21D 1/20 - Trempe isotherme, p. ex. durcissement bainitique
• C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
• C22C 38/18 - Alliages ferreux, p. ex. aciers alliés contenant du chrome
• C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
• C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse

Abrégé

The invention provides a steel, which has a high strength, without complex heat treatment processes having to be performed for this purpose, and at the same time has a low tendency to warp. For this purpose, the high-grade structural steel according to the invention consists of (in % by weight) up to 0.25% C, up to 0.45% Si, 0.20 - 2.00% Mn; up to 4.00% Cr, 0.6 - 3.0% Mo, 0.004 - 0.020% N, up to 0.40% S, 0.001 - 0.035% Al, 0.0005 - 0.0025% B, up to 0.015% Nb, up to 0.01% Ti, up to 0.10% V, up to 1.5% Ni and up to 2.0% Cu, the remainder iron and unavoidable impurities, wherein the Al content %Al, the Nb content %Nb, the Ti content %Ti, the V content %V and the N content %N of the high-grade structural steel respectively meet the following condition: %Al/27 + %Nb/45 + %Ti/48 + %V/25 > %N/3.75. The high-grade structural steel according to the invention has a yield strength of at least 750 MPa, a tensile strength of at least 950 MPa and a microstructure which consists at least 80% by volume of bainite and in total at most 20% by volume of residual austenite, ferrite, pearlite and/or martensite. On account of its combination of properties, the steel according to the invention is suitable in particular for the production of forged parts with great changes in cross section over its length. The invention also discloses a method for producing such forged components.

Classes IPC  ?

• C21D 1/02 - Durcissement d'objets ou de matériaux formés par forgeage ou laminage sans autre chauffage que celui nécessaire à la mise en forme
• C21D 1/20 - Trempe isotherme, p. ex. durcissement bainitique
• C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/12 - Alliages ferreux, p. ex. aciers alliés contenant du tungstène, du tantale, du molybdène, du vanadium ou du niobium
• C22C 38/18 - Alliages ferreux, p. ex. aciers alliés contenant du chrome
• C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
• C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse

Produits et services

Steel, stainless steel and bright steel; semi-finished products in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of steel, stainless steel and bright steel.

Produits et services

Steel, stainless steel and bright steel; semi-finished products in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of steel, stainless steel and bright steel.

Abrégé

A method for producing components (1, 21) which have a core section (6, 22) made of a metal material and a wear-resistant layer (7, 24) on a circumferential surface of the core section. According to the invention, a) a core section blank (8, 28) made of the metal material is provided, the dimension (L8, L28) of which in a first spatial direction (Y) is greater than the nominal finished dimension of the core section of the component in the spatial direction in question and the dimension of which in a second spatial direction (X) is less than the nominal finished dimension of the core section of the component in this second spatial direction; b) a material (M, P) forming the wear-resistant layer is applied to the circumferential surface such that the material and the core section blank form a solid composite body (13, 34); and c) the composite body is formed into the component by being stretched in the direction of the second spatial direction and compressed in the direction of the first spatial direction, until its dimensions in the spatial directions correspond at least to the nominal finished dimensions of the component in these spatial directions and the wear-resistant material is present on a circumferential surface of the component.

Classes IPC  ?

• B23P 15/00 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe
• B21B 27/03 - Cylindres avec des chemises
• B21J 5/00 - Méthodes pour forger, marteler ou presserÉquipement ou accessoires particuliers
• B21K 1/06 - Fabrication d'éléments de machines d'arbres
• B21K 5/00 - Fabrication d'outils ou de parties d'outils, p. ex. de pinces
• B22F 7/08 - Fabrication de couches composites, de pièces ou d'objets à base de poudres métalliques, par frittage avec ou sans compactage de pièces ou objets composés de parties différentes, p. ex. pour former des outils à embouts rapportés avec une ou plusieurs parties non faites à partir de poudre

Produits et services

Unwrought and partly common metals, Hard metals and hard metal alloys, Hard metals.

Abrégé

The invention relates to steel for applications which require high wear resistance, a high degree of hardness, good corrosion resistance and/or low thermal conductivity, said steel being reliably producible on an industrial scale. The hardness of the steel according to the invention in the hardened state is at least 56 HRC. In order to obtain said steel, the microstructure of the steel in total contains at least 30 wt.-% hard phases, which, in addition to the TiC particles, consist of further carbide particles, oxide particles or nitride particles. The TiC particle content of the steel according to the invention is at least 20 wt.-%. The hard phase particles are embedded in a matrix that consists of (in wt.-%) 9.0 - 15.0% Cr, 5.0 - 9.0% Mo, 3.0 - 7.0% Ni, 6.0 - 11.0% Co, 0.3 - 1.5% Cu, 0.1 - 2.0% Ti, and 0.1 - 2.0% Al, the remainder being iron and inevitable impurities. The combination of properties makes said steel particularly suitable for the production of structural components, in particular blades or perforated plates which are required for the production and the recycling of plastics.

Classes IPC  ?

• C22C 33/02 - Fabrication des alliages ferreux par des techniques de la métallurgie des poudres
• C22C 38/42 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cuivre
• C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
• C22C 38/52 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du cobalt

Produits et services

Crude and semi-wrought common metals and their alloys, in particular steel, stainless steel and bright steel; semi-finished goods of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

(1) Crude and semi-wrought common metals and their alloys, in particular steel, stainless steel and bright steel; semi-finished goods of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal, namely, metal auxiliary welding rods, metal auxiliary welding electrodes.

Produits et services

Crude and semi-wrought common metals and their alloys, in particular steel, stainless steel and bright steel; Semi-finished goods of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; Auxiliary welding materials of metal.

Produits et services

Semi-finished products of steel in the form of wire, rods, plates, sheets, billets, blocks, profiles, rings; unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

(1) Semi-finished products of steel in the form of wire, rods, plates, sheets, billets, blocks, profiles, rings; unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel.

Produits et services

(1) Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal, excluding paints, primers and clear coats for use on civil and military airplanes and aerospace carriers.

Produits et services

Crude and semi-wrought common metals and their alloys, in particular steel, stainless steel and bright steel; semi-finished goods of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

Unwrought and semi-wrought common metals, in particular steel, stainless steel and bright steel; semi-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal.

Produits et services

(1) Crude and semi-wrought common metals, namely steel, stainless steel and bright steel; half-finished products of steel, namely rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal, namely welding wires, welding bands and welding rods.

Produits et services

(1) Crude and semi-wrought common metals, namely steel, stainless steel and bright steel; half-finished products of steel, namely rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal, namely welding wires, welding bands and welding rods

Produits et services

(1) Crude and semi-wrought common metals, namely steel, stainless steel and bright steel; half-finished products of steel, namely rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal, namely welding wires, welding bands and welding rods.

Produits et services

(1) Crude and semi-wrought common metals, namely steel, stainless steel and bright steel; half-finished products of steel, namely rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal, namely welding wires, welding bands and welding rods.

Produits et services

(1) Crude and semi-wrought common metals, namely steel, stainless steel and bright steel; half-finished products of steel, namely rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal, namely welding wires, welding bands and welding rods.

Produits et services

(1) Crude and semi-wrought common metals, namely steel, stainless steel and bright steel; half-finished products of steel, namely rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal, namely welding wires, welding bands and welding rods.

Produits et services

(1) Crude and semi-wrought common metals, namely steel, stainless steel and bright steel; half-finished products of steel, namely rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal, namely welding wires, welding bands and welding rods; excluding the manufacturing of same for wires used in the manufacturing of wire netting, wire mesh, sifting screens, sieves and filters for sifting, filtering and sieving the rock, sable, gravel, minerals, products for composting or composted products, products for recycling or recycled products, top soil, mulch.

Produits et services

(1) Crude and semi-wrought common metals, namely steel, stainless steel and bright steel; half-finished products of steel, namely rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal, namely welding wires, welding bands and welding rods.

Produits et services

(1) Crude and semi-wrought common metals, namely steel, stainless steel and bright steel; half-finished products of steel, namely rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal, namely welding wires, welding bands and welding rods.

Produits et services

(1) Crude and semi-wrought common metals, namely steel, stainless steel and bright steel; half-finished products of steel, namely rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal, namely welding wires, welding bands and welding rods.

Produits et services

(1) Crude and semi-wrought common metals, namely steel, stainless steel and bright steel; half-finished products of steel, namely rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal, namely welding wires, welding bands and welding rods.

Produits et services

(1) Crude and semi-wrought common metals, namely steel, stainless steel and bright steel; half-finished products of steel, namely rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal, namely welding wires, welding bands and welding rods.

Produits et services

(1) Crude and semi-wrought common metals, namely steel, stainless steel and bright steel; half-finished products of steel, namely rods, plates, sheets, billets, blocks, wire, profiles, rings; auxiliary welding materials of metal, namely welding wires, welding bands and welding rods.

Produits et services

(1) Crude and semi-wrought common metals, namely steel, stainless steel and bright steel; half-finished products of steel in the form of rods, plates, sheets, billets, blocks, wire, wire profiles, rings; auxilliary welding materials of metal, namely welding wires, welding bands and welding rods.

Produits et services

Rough and partially processed common metals and their alloys in the form of blocks, slabs, forgings, shapes and building blocks, forged parts, plates, billets, rods, wire, pipes, sheets and strips.

Produits et services

(1) Rough and partially processed common metals and their alloys in the form of blocks, slabs, forgings, shapes and building blocks, forged parts, plates, billets, rods, wire, pipes, sheets and strips, all the aforesaid products as steels for plastic mouldings in the form of pre- and half fabricates for manufacturing of plastic parts.

Produits et services

Worked and semi-worked common metals and metal alloys in the form of blocks, iron slabs, shaped parts and components, smith hammer forgings, sheet bars, billets, rods, wires, pipes, sheets and bands, all the aforesaid goods being plastic mould steel, being prefabricated and semi-finished goods for manufacturing plastic parts.

Produits et services

Common metals and their alloys, steels, stainless steels, high-grade steels and acid resistant steels; semi-finished products made of the aforesaid alloys and steels, like sheets, rods, billets, wires, tubes, springs.

Produits et services

Common metals and their alloys, steels, specially tool steels, non-rusting steels, speciality steels and acid resisting steels; semi-finished products made of the aforementioned metals, alloys and steels, eg sheets, poles, bars, wires, pipes, springs.

Produits et services

Common metals, hard metals and alloys with sintered carbides, all partly containing titanium carbide.

Produits et services

Métaux communs et leurs alliages.

Produits et services

Non-precious, unprocessed or semi-processed metals, namely, non-magnetic steel alloys for building vehicles, machines, motors and engines (excluding rods, welding powders and pastes).

Produits et services

Métaux communs bruts ou mi-ouvrés et leurs alliages.

Produits et services

Métaux communs bruts et mi-ouvrés et leurs alliages sous forme de lingots, de blocs laminés, ou de blocs forgés, de brames, de billettes, de disques, de barres, de tubes, de tôles, de rubans, de fils, de plaques et de pièces profilées, frittées et poreuses; alliages durs sous forme de lingots usinés ou partiellement usinés; matériaux métalliques de remplissage par soudage sous forme de rubans, de barres, de fils et de poudres; poudres métalliques, aussi celles contenant des métaux durs, pour la projection. Outillages de machine pour le façonnage par enlèvement ou sans enlèvement de copeaux, y compris outillages comportant des métaux durs, spécialement matrices, outillages de découpage, de tournage, de fraisage, de pressage, de d'étirage; outillages de précision pour machine pour le coupage fin, pour le moulage sous pression et pour l'injection de matières synthétiques; filtres en métaux communs frittés et poreux; alliages durs sous forme de pièces de machines. Calibres de mesurage; aimants, systèmes d'aimant se composant d'aimants permanents, de pièces ferro-magnétiques (fer doux) et non ferro-magnétiques. Plaques et filtres en matières synthétiques frittées et poreuses comme parties de filtres à liquides et de filtres à gaz, aussi comme parties d'installations chimiques de la technique de procédé; filtres en métaux communs frittés et poreux. Plaques et filtres en matières synthétiques frittées et poreuses comme parties de filtres à liquides et de filtres à gaz pour véhicules; alliages durs sous forme de pièces de moteurs de véhicules.