# US 2013/0252017 A1 · Steel sheet for hot pressing and method for manufacturing hot-pressed member using the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0252017 A1 - Document ID: US20130252017A1 - Status: Published application - Kind: A1 - Application number: 13/988,915 - Filed: 2011-11-18 - Published: 2013-09-26 - Earliest claimed: 2010-11-25 - Assignees: Jfe Steel Corporation - Inventors: Seiji Nakajima; Tatsuya Miyoshi; Hiroki Nakamaru - Web page: https://patentgrep.com/patent/US20130252017A1 ## CPC - B32B 15/01: all layers being exclusively metallic {(making layered metal workpieces by pressure cladding B23K20/22; making coatings with a metallic material characterised by its composition C23C30/00)} - B32B 15/012: {one layer being formed of an iron alloy or steel, another layer being formed of aluminium or an aluminium alloy} - B32B 15/013: {one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium} - B32B 15/043: {of metal (B32B15/01 takes precedence)} - C21D 1/18: Hardening (C21D1/02 takes precedence); Quenching with or without subsequent tempering (quenching devices C21D1/62) - C21D 8/0242: {Flattening; Dressing; Flexing} - C21D 9/00: Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor - C21D 9/46: for sheet metals - C22C 18/00: Alloys based on zinc - C22C 18/04: with aluminium as the next major constituent - C22C 21/10: with zinc as the next major constituent - C22C 38/001: {containing N} - C22C 38/02: containing silicon - C22C 38/04: containing manganese - C22C 38/06: containing aluminium - C22C 38/28: with titanium or zirconium - C22C 38/32: with boron - C22C 38/60: containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur - C23C 2/06: Zinc or cadmium or alloys based thereon - C23C 2/26: After-treatment (C23C2/14 takes precedence) - C23C 2/28: Thermal after-treatment, e.g. treatment in oil bath - C23C 2/29: {Cooling or quenching} - C23C 28/02: only coatings {only including layers} of metallic material - C25D 3/565: {containing more than 50% by weight of zinc} - C25D 5/50: by heat-treatment - B21D 22/208: {by heating the blank or deep-drawing associated with heat treatment (C21D takes precedence)} - Y10T 428/12535: with additional, spatially distinct nonmetal component - Y10T 428/12799: Next to Fe-base component [e.g., galvanized] - Y10T 428/12937: Co- or Ni-base component next to Fe-base component - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - C21D: MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING (surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by this subclass C23F17/00; unidirectional solidification of eutectic materials or unidirectional demixing of eutectoid materials C30B) - C22C: ALLOYS (treatment of alloys C21D, C22F) - C23C: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL (making metal-coated products by extrusion B21C23/22; covering with metal by connecting pre-existing layers to articles, see the relevant places, e.g. B21D39/00, B23K; metallising of glass C03C; metallising mortars, concrete, artificial stone, ceramics or natural stone C04B41/00; enamelling of, or applying a vitreous layer to, metals C23D; treating metal surfaces or coating of metals by electrolysis or electrophoresis C25D; single-crystal film growth C30B; by metallising textiles D06M11/83; decorating textiles by locally metallising D06Q1/04) - C25D: PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR - B21D: WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL (working or processing of wire B21F) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A steel sheet for hot pressing that is capable of suppressing formation of scales or ZnO in hot pressing and excellent in oxidation resistance, and a method for manufacturing a hot-pressed member using the steel sheet are provided. The steel sheet for hot pressing includes a base steel sheet and a plating layer that is formed on a surface of the base steel sheet at a coating weight of 10 to 90 g/m2 and contains 10 to 25% by mass of Ni and the balance Zn with inevitable impurities. ## Claims ### Claim 1 A steel sheet for hot pressing comprising: a base steel sheet; and a plating layer that is formed on a surface of the base steel sheet at a coating weight of 10 to 90 g/m2 and contains 10 to 25% by mass of Ni and the balance Zn with inevitable impurities. ### Claim 2 (depends on 1) The steel sheet for hot pressing according to claim 1, further comprising at least one compound layer selected from the group consisting of Si-containing compound layer, Ti-containing compound layer, Al-containing compound layer, and Zr-containing compound layer, wherein the compound layer is formed on the plating layer. ### Claim 3 (depends on 1) The steel sheet for hot pressing according to claim 1, wherein the base steel sheet has component composition having 0.15 to 0.5% by mass of C, 0.05 to 2.0% by mass of Si, 0.5 to 3% by mass of Mn, 0.1% by mass or less of P, 0.05% by mass or less of S, 0.1% by mass or less of Al, 0.01% by mass or less of N, and the balance Fe with inevitable impurities. ### Claim 4 (depends on 3) The steel sheet for hot pressing according to claim 3, wherein the base steel sheet further contains at least one component selected from the group consisting of 0.01 to 1% by mass of Cr, 0.2% by mass or less of Ti, and 0.0005 to 0.08% by mass of B. ### Claim 5 (depends on 3) The steel sheet for hot pressing according to claim 3, wherein the base steel sheet further contains 0.003 to 0.03% by mass of Sb. ### Claim 6 (depends on 1) A method for manufacturing a hot-pressed member, the method comprising: heating the steel sheet for hot pressing according to claim 1 to a temperature ranging from Ac3 transformation point to 1000° C.; and hot-pressing the heated steel sheet. ### Claim 7 (depends on 2) The steel sheet for hot pressing according to claim 2, wherein the base steel sheet has component composition having 0.15 to 0.5% by mass of C, 0.05 to 2.0% by mass of Si, 0.5 to 3% by mass of Mn, 0.1% by mass or less of P, 0.05% by mass or less of S, 0.1% by mass or less of Al, 0.01% by mass or less of N, and the balance Fe with inevitable impurities. ### Claim 8 (depends on 7) The steel sheet for hot pressing according to claim 7, wherein the base steel sheet further contains at least one component selected from the group consisting of 0.01 to 1% by mass of Cr, 0.2% by mass or less of Ti, and 0.0005 to 0.08% by mass of B. ### Claim 9 (depends on 7) The steel sheet for hot pressing according to claim 7, wherein the base steel sheet further contains 0.003 to 0.03% by mass of Sb. ### Claim 10 (depends on 4) The steel sheet for hot pressing according to claim 4, wherein the base steel sheet further contains 0.003 to 0.03% by mass of Sb. ### Claim 11 (depends on 8) The steel sheet for hot pressing according to claim 8, wherein the base steel sheet further contains 0.003 to 0.03% by mass of Sb. ### Claim 12 (depends on 2) A method for manufacturing a hot-pressed member, the method comprising: heating the steel sheet for hot pressing according to any one of claim 2 to a temperature ranging from Ac3 transformation point to 1000° C.; and hot-pressing the heated steel sheet. ### Claim 13 (depends on 3) A method for manufacturing a hot-pressed member, the method comprising: heating the steel sheet for hot pressing according to any one of claim 3 to a temperature ranging from Ac3 transformation point to 1000° C.; and hot-pressing the heated steel sheet. ### Claim 14 (depends on 7) A method for manufacturing a hot-pressed member, the method comprising: heating the steel sheet for hot pressing according to any one of claim 7 to a temperature ranging from Ac3 transformation point to 1000° C.; and hot-pressing the heated steel sheet. ### Claim 15 (depends on 4) A method for manufacturing a hot-pressed member, the method comprising: heating the steel sheet for hot pressing according to any one of claim 4 to a temperature ranging from Ac3 transformation point to 1000° C.; and hot-pressing the heated steel sheet. ### Claim 16 (depends on 8) A method for manufacturing a hot-pressed member, the method comprising: heating the steel sheet for hot pressing according to any one of claim 8 to a temperature ranging from Ac3 transformation point to 1000° C.; and hot-pressing the heated steel sheet. ### Claim 17 (depends on 5) A method for manufacturing a hot-pressed member, the method comprising: heating the steel sheet for hot pressing according to any one of claim 5 to a temperature ranging from Ac3 transformation point to 1000° C.; and hot-pressing the heated steel sheet. ### Claim 18 (depends on 9) A method for manufacturing a hot-pressed member, the method comprising: heating the steel sheet for hot pressing according to any one of claim 9 to a temperature ranging from Ac3 transformation point to 1000° C.; and hot-pressing the heated steel sheet. ### Claim 19 (depends on 10) A method for manufacturing a hot-pressed member, the method comprising: heating the steel sheet for hot pressing according to any one of claim 10 to a temperature ranging from Ac3 transformation point to 1000° C.; and hot-pressing the heated steel sheet. ### Claim 20 (depends on 11) A method for manufacturing a hot-pressed member, the method comprising: heating the steel sheet for hot pressing according to any one of claim 11 to a temperature ranging from Ac3 transformation point to 1000° C.; and hot-pressing the heated steel sheet.