EP4098765A4 - Highly anticorrosive martensitic stainless steel, and manufacturing method therefor - Google Patents

Highly anticorrosive martensitic stainless steel, and manufacturing method therefor Download PDF

Info

Publication number: EP4098765A4
Authority: EP; European Patent Office
Prior art keywords: manufacturing; stainless steel; method therefor; martensitic stainless; highly anticorrosive
Prior art date: 2020-03-20
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

EP20925160.2A

Other languages

German (de)

French (fr)

Other versions

EP4098765A1 (en

Inventor

Byoung-Jun Song

Junghyun KONG

Yongho Kim

Seongin JEONG

Gyujin JO

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.)

Posco Holdings Inc

Original Assignee

Posco 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.)

2020-03-20

Filing date

2020-10-14

Publication date

2024-04-24

2020-10-14 Application filed by Posco Co Ltd filed Critical Posco Co Ltd

2022-12-07 Publication of EP4098765A1 publication Critical patent/EP4098765A1/en

2024-04-24 Publication of EP4098765A4 publication Critical patent/EP4098765A4/en

Status Pending legal-status Critical Current

Links

Classifications

- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
- C22C38/02—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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- 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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/78—Combined heat-treatments not provided for above
- 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
- C21D6/002—Heat treatment of ferrous alloys containing Cr
- 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
- C21D6/005—Heat treatment of ferrous alloys containing Mn
- 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
- C21D6/008—Heat treatment of ferrous alloys containing Si
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/04—Hardening by cooling below 0 degrees Celsius
- 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
- C21D8/0221—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
- C21D8/0247—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
- 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
- C21D8/0263—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 following 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
- C21D8/0247—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
- C21D8/0273—Final recrystallisation annealing
- 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
- C22C38/04—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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- 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
- C21D2211/005—Ferrite
- 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)
Mechanical Engineering (AREA)
Materials 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)

EP20925160.2A 2020-03-20 2020-10-14 Highly anticorrosive martensitic stainless steel, and manufacturing method therefor Pending EP4098765A4 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
KR1020200034294A KR102326693B1 (en)	2020-03-20	2020-03-20	Martensitic stainless steel with excellent corrosion resistance and manufacturing method thereof
PCT/KR2020/014029 WO2021187706A1 (en)	2020-03-20	2020-10-14	Highly anticorrosive martensitic stainless steel, and manufacturing method therefor

Publications (2)

Publication Number	Publication Date
EP4098765A1 EP4098765A1 (en)	2022-12-07
EP4098765A4 true EP4098765A4 (en)	2024-04-24

Family

ID=77768211

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20925160.2A Pending EP4098765A4 (en)	2020-03-20	2020-10-14	Highly anticorrosive martensitic stainless steel, and manufacturing method therefor

Country Status (7)

Country	Link
US (1)	US20230107193A1 (en)
EP (1)	EP4098765A4 (en)
JP (1)	JP7617937B2 (en)
KR (1)	KR102326693B1 (en)
CN (1)	CN115667569A (en)
CA (1)	CA3171590A1 (en)
WO (1)	WO2021187706A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2023121063A1 (en) *	2021-12-20	2023-06-29	주식회사 포스코	Martensitic stainless steel having improved resistance to softening and manufacturing method therefor
CN115896591A (en) *	2022-10-28	2023-04-04	中国科学院金属研究所	A method for improving the corrosion resistance and comprehensive mechanical properties of low-carbon martensitic stainless steel
JP2024090519A (en) *	2022-12-23	2024-07-04	大同特殊鋼株式会社	Martensitic stainless steel material for hydrogen gas environment and its manufacturing method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH1150203A (en) *	1997-07-31	1999-02-23	Nippon Steel Corp	Surface high hardness, high corrosion resistance, high toughness martensitic stainless steel
EP0994199A1 (en) *	1998-10-05	2000-04-19	Sumitomo Metal Industries, Ltd.	Stainless steel for gaskets and production thereof
EP1541702A1 (en) *	2003-12-03	2005-06-15	Posco	Corrosion-resistive martensitic stainless steel having no pin hole defect and manufacturing method thereof
JP2008163452A (en) *	2006-12-08	2008-07-17	Nippon Steel & Sumikin Stainless Steel Corp	Martensitic stainless steel with excellent corrosion resistance
CN101372734A (en) *	2007-08-24	2009-02-25	宝山钢铁股份有限公司	A kind of martensitic stainless steel and its manufacturing method
JP2009203528A (en) *	2008-02-28	2009-09-10	Nippon Steel & Sumikin Stainless Steel Corp	Martensitic stainless steel for loom member having excellent corrosion resistance and wear resistance, and method for producing steel strip thereof

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JPS527818A (en) *	1975-07-09	1977-01-21	Kawasaki Steel Corp	Process for producing rust proofing, medium carbon, martensitic, chrom ium stainless steel
JP3340225B2 (en) *	1993-01-12	2002-11-05	新日本製鐵株式会社	High strength martensitic stainless steel with excellent rust resistance and drilling tapping screw
KR100523107B1 (en) *	2000-06-23	2005-10-19	주식회사 포스코	Method for heat treating hot rolled 420-type martensitic stainless steel
JP4857811B2 (en) *	2006-02-27	2012-01-18	Ｊｆｅスチール株式会社	Steel for knives
JP5335502B2 (en) *	2009-03-19	2013-11-06	新日鐵住金ステンレス株式会社	Martensitic stainless steel with excellent corrosion resistance
CN101693982B (en) *	2009-09-30	2011-06-01	山西太钢不锈钢股份有限公司	Martensite corrosion-resisting steel plate for cutting tool and manufacture method thereof
KR101356951B1 (en) *	2011-12-26	2014-01-28	주식회사 포스코	Martensite stainless steel with excellent hardness and the method of manufacturing the same
KR101423826B1 (en) *	2012-07-16	2014-07-25	주식회사 포스코	Martensitic stainless steel and the method of manufacturing the same
KR101648271B1 (en) *	2014-11-26	2016-08-12	주식회사 포스코	High-hardness martensitic stainless steel with excellent antibiosis and manufacturing the same
EP3287536B1 (en) *	2015-04-21	2020-07-15	JFE Steel Corporation	Martensitic stainless steel
JP6631860B2 (en) *	2016-03-04	2020-01-15	日立金属株式会社	Method for producing martensitic stainless steel member, and martensitic stainless steel component and method for producing same
KR101834996B1 (en) *	2016-10-19	2018-03-06	주식회사 포스코	High hardness martensitic stainless steel with excellent hardenability and method of manufacturing the same

2020
- 2020-03-20 KR KR1020200034294A patent/KR102326693B1/en active Active
- 2020-10-14 JP JP2022554348A patent/JP7617937B2/en active Active
- 2020-10-14 US US17/908,124 patent/US20230107193A1/en active Pending
- 2020-10-14 CN CN202080098335.5A patent/CN115667569A/en active Pending
- 2020-10-14 CA CA3171590A patent/CA3171590A1/en active Pending
- 2020-10-14 EP EP20925160.2A patent/EP4098765A4/en active Pending
- 2020-10-14 WO PCT/KR2020/014029 patent/WO2021187706A1/en not_active Ceased

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH1150203A (en) *	1997-07-31	1999-02-23	Nippon Steel Corp	Surface high hardness, high corrosion resistance, high toughness martensitic stainless steel
EP0994199A1 (en) *	1998-10-05	2000-04-19	Sumitomo Metal Industries, Ltd.	Stainless steel for gaskets and production thereof
EP1541702A1 (en) *	2003-12-03	2005-06-15	Posco	Corrosion-resistive martensitic stainless steel having no pin hole defect and manufacturing method thereof
JP2008163452A (en) *	2006-12-08	2008-07-17	Nippon Steel & Sumikin Stainless Steel Corp	Martensitic stainless steel with excellent corrosion resistance
CN101372734A (en) *	2007-08-24	2009-02-25	宝山钢铁股份有限公司	A kind of martensitic stainless steel and its manufacturing method
JP2009203528A (en) *	2008-02-28	2009-09-10	Nippon Steel & Sumikin Stainless Steel Corp	Martensitic stainless steel for loom member having excellent corrosion resistance and wear resistance, and method for producing steel strip thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021187706A1 *

Also Published As

Publication number	Publication date
WO2021187706A1 (en)	2021-09-23
KR102326693B1 (en)	2021-11-17
EP4098765A1 (en)	2022-12-07
CA3171590A1 (en)	2021-09-23
JP2023517590A (en)	2023-04-26
CN115667569A (en)	2023-01-31
KR20210117712A (en)	2021-09-29
JP7617937B2 (en)	2025-01-20
US20230107193A1 (en)	2023-04-06

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2021-09-24	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2022-11-04	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
2022-11-04	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2022-12-07	17P	Request for examination filed	Effective date: 20220901
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