EP4112754A4 - PRECIPITATION HARDENING MARTENSITIC STAINLESS STEEL - Google Patents

PRECIPITATION HARDENING MARTENSITIC STAINLESS STEEL Download PDF

Info

Publication number: EP4112754A4
Authority: EP; European Patent Office
Prior art keywords: stainless steel; martensitic stainless; precipitation hardening; hardening martensitic; precipitation
Prior art date: 2020-02-27
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Pending

Application number

EP20920783.6A

Other languages

German (de)

French (fr)

Other versions

EP4112754A1 (en

Inventor

Taiki Maeda

Fugao Wei

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Nippon Yakin Kogyo Co Ltd

Original Assignee

Nippon Yakin Kogyo Co Ltd

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2020-02-27

Filing date

2020-10-27

Publication date

2024-09-04

2020-10-27 Application filed by Nippon Yakin Kogyo Co Ltd filed Critical Nippon Yakin Kogyo Co Ltd

2023-01-04 Publication of EP4112754A1 publication Critical patent/EP4112754A1/en

2024-09-04 Publication of EP4112754A4 publication Critical patent/EP4112754A4/en

Status Pending legal-status Critical Current

Links

Classifications

- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/02—Hardening by precipitation
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/021—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving particular fabrication steps or treatments of ingots or slabs
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0226—Hot rolling
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/004—Dispersions; Precipitations
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite

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Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
Heat Treatment Of Steel (AREA)
Heat Treatment Of Sheet Steel (AREA)

EP20920783.6A 2020-02-27 2020-10-27 PRECIPITATION HARDENING MARTENSITIC STAINLESS STEEL Pending EP4112754A4 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP2020031787A JP6776467B1 (en)	2020-02-27	2020-02-27	Precipitation hardening martensitic stainless steel
PCT/JP2020/040211 WO2021171698A1 (en)	2020-02-27	2020-10-27	Precipitation-hardening martensitic stainless steel

Publications (2)

Publication Number	Publication Date
EP4112754A1 EP4112754A1 (en)	2023-01-04
EP4112754A4 true EP4112754A4 (en)	2024-09-04

Family

ID=72916150

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20920783.6A Pending EP4112754A4 (en)	2020-02-27	2020-10-27	PRECIPITATION HARDENING MARTENSITIC STAINLESS STEEL

Country Status (4)

Country	Link
EP (1)	EP4112754A4 (en)
JP (1)	JP6776467B1 (en)
CN (1)	CN115210389A (en)
WO (1)	WO2021171698A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP7029570B1 (en) *	2021-08-19	2022-03-03	日本冶金工業株式会社	Precipitation hardening martensitic stainless steel and its manufacturing method
CN116024496B (en) *	2022-12-22	2024-12-06	敦化市拜特科技有限公司	Stainless steel strip and method for manufacturing the same
JP7633464B1 (en)	2024-03-29	2025-02-19	日本冶金工業株式会社	Precipitation hardened martensitic stainless steel for press plates, its solution treated material and aging treated material
CN120719219A (en)	2024-03-29	2025-09-30	日本冶金工业株式会社	Precipitation hardening martensitic stainless steel for press plates and its solution treated and aging treated materials

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0874006A (en) *	1994-09-08	1996-03-19	Nisshin Steel Co Ltd	Precipitation hardening type stainless steel excellent in strength and twisting property
JPH0873931A (en) *	1994-09-08	1996-03-19	Nisshin Steel Co Ltd	Production of precipitation hardening type stainless steel for spring excellent in strength and twisting characteristic
JP2002161343A (en) *	2000-11-20	2002-06-04	Hitachi Metals Ltd	Precipitation-hardening type martensitic stainless-steel with high strength superior in corrosion resistance
JP2005232575A (en) *	2004-02-23	2005-09-02	Mitsubishi Heavy Ind Ltd	Precipitation hardening type martensitic steel, and turbine blade using the same
JP2005298840A (en) *	2004-04-06	2005-10-27	Hitachi Metals Ltd	High-strength precipitation-hardening type martensitic stainless steel superior in toughness
CN108677107A (en) *	2018-06-20	2018-10-19	上海铭客传动系统有限公司	A kind of stainless steel used for conveyer belt and its technology of preparing

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS63171857A (en) *	1987-01-10	1988-07-15	Nippon Yakin Kogyo Co Ltd	Stainless steel strip with excellent fatigue properties
JPH11256282A (en)	1998-03-12	1999-09-21	Nisshin Steel Co Ltd	Precipitation hardening martensitic stainless steel excellent in strength, toughness, and fatigue characteristic, and its production
JP2001179485A (en) *	1999-12-27	2001-07-03	Sumitomo Metal Ind Ltd	Martensitic stainless steel welded pipe and method for producing the same
JP2003073783A (en)	2001-09-03	2003-03-12	Nisshin Steel Co Ltd	Precipitation-hardening type martensitic stainless steel sheet for flapper valve, and manufacturing method therefor
CN101886228B (en) *	2009-05-13	2012-02-01	中国科学院金属研究所	Low carbon maraging stainless steel with high strength, high toughness and high corrosion resistance
JP4870844B1 (en) *	2011-02-16	2012-02-08	日本冶金工業株式会社	Precipitation hardening type martensitic stainless steel
JP6305136B2 (en) *	2014-03-18	2018-04-04	山陽特殊製鋼株式会社	Precipitation hardening type stainless steel powder and sintered body thereof
JP6501652B2 (en) *	2015-06-29	2019-04-17	山陽特殊製鋼株式会社	Martensitic stainless steel with excellent precipitation hardenability
JP6583885B2 (en) *	2015-10-20	2019-10-02	山陽特殊製鋼株式会社	High hardness stainless steel with excellent corrosion resistance and manufacturability
JP6572802B2 (en)	2016-03-04	2019-09-11	日鉄ステンレス株式会社	Precipitation hardening type martensitic stainless steel sheet for steel belt and manufacturing method
JP2018178144A (en) *	2017-04-04	2018-11-15	山陽特殊製鋼株式会社	Precipitation hardening stainless steel having excellent hot workability
JP6987651B2 (en) *	2018-01-23	2022-01-05	山陽特殊製鋼株式会社	High hardness precipitation hardening stainless steel with excellent hot workability and no sub-zero treatment required

2020
- 2020-02-27 JP JP2020031787A patent/JP6776467B1/en active Active
- 2020-10-27 CN CN202080097683.0A patent/CN115210389A/en active Pending
- 2020-10-27 WO PCT/JP2020/040211 patent/WO2021171698A1/en not_active Ceased
- 2020-10-27 EP EP20920783.6A patent/EP4112754A4/en active Pending

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0874006A (en) *	1994-09-08	1996-03-19	Nisshin Steel Co Ltd	Precipitation hardening type stainless steel excellent in strength and twisting property
JPH0873931A (en) *	1994-09-08	1996-03-19	Nisshin Steel Co Ltd	Production of precipitation hardening type stainless steel for spring excellent in strength and twisting characteristic
JP2002161343A (en) *	2000-11-20	2002-06-04	Hitachi Metals Ltd	Precipitation-hardening type martensitic stainless-steel with high strength superior in corrosion resistance
JP2005232575A (en) *	2004-02-23	2005-09-02	Mitsubishi Heavy Ind Ltd	Precipitation hardening type martensitic steel, and turbine blade using the same
JP2005298840A (en) *	2004-04-06	2005-10-27	Hitachi Metals Ltd	High-strength precipitation-hardening type martensitic stainless steel superior in toughness
CN108677107A (en) *	2018-06-20	2018-10-19	上海铭客传动系统有限公司	A kind of stainless steel used for conveyer belt and its technology of preparing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021171698A1 *

Also Published As

Publication number	Publication date
JP2021134395A (en)	2021-09-13
CN115210389A (en)	2022-10-18
JP6776467B1 (en)	2020-10-28
WO2021171698A1 (en)	2021-09-02
EP4112754A1 (en)	2023-01-04

Legal Events

Date	Code	Title	Description
2021-09-03	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2022-12-02	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2022-12-02	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2023-01-04	17P	Request for examination filed	Effective date: 20220927
2023-01-04	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2023-06-07	DAV	Request for validation of the european patent (deleted)
2023-06-07	DAX	Request for extension of the european patent (deleted)
2023-06-28	P01	Opt-out of the competence of the unified patent court (upc) registered	Effective date: 20230524
2024-08-01	REG	Reference to a national code	Ref country code: DE Ref legal event code: R079 Free format text: PREVIOUS MAIN CLASS: C21D0006000000 Ipc: C22C0038440000
2024-09-04	A4	Supplementary search report drawn up and despatched	Effective date: 20240806
2024-09-04	RIC1	Information provided on ipc code assigned before grant	Ipc: C21D 1/26 20060101ALI20240801BHEP Ipc: C21D 6/00 20060101ALI20240801BHEP Ipc: C21D 6/02 20060101ALI20240801BHEP Ipc: C21D 8/02 20060101ALI20240801BHEP Ipc: C21D 9/46 20060101ALI20240801BHEP Ipc: C22C 38/06 20060101ALI20240801BHEP Ipc: C22C 38/00 20060101ALI20240801BHEP Ipc: C22C 38/04 20060101ALI20240801BHEP Ipc: C22C 38/02 20060101ALI20240801BHEP Ipc: C22C 38/34 20060101ALI20240801BHEP Ipc: C22C 38/50 20060101ALI20240801BHEP Ipc: C22C 38/48 20060101ALI20240801BHEP Ipc: C22C 38/42 20060101ALI20240801BHEP Ipc: C22C 38/44 20060101AFI20240801BHEP

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