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

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

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Publication number
EP4098765A4
EP4098765A4 EP20925160.2A EP20925160A EP4098765A4 EP 4098765 A4 EP4098765 A4 EP 4098765A4 EP 20925160 A EP20925160 A EP 20925160A EP 4098765 A4 EP4098765 A4 EP 4098765A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
stainless steel
method therefor
martensitic stainless
highly anticorrosive
Prior art date
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.)
Filing date
Publication date
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP4098765A1 publication Critical patent/EP4098765A1/en
Publication of EP4098765A4 publication Critical patent/EP4098765A4/en
Pending legal-status Critical Current

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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 by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • 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 by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties 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 by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties 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 by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties 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 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 by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties 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) JP2023517590A (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 Method for improving corrosion resistance and comprehensive mechanical property 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 Martensitic stainless steel having surface high hardness, high corrosion resistance and high toughness
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 excellent in corrosion resistance
CN101372734A (en) * 2007-08-24 2009-02-25 宝山钢铁股份有限公司 Martensite stainless steel and manufacturing method thereof
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

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
WO2016170761A1 (en) * 2015-04-21 2016-10-27 Ｊｆｅスチール株式会社 Martensitic stainless steel
US20190040506A1 (en) * 2016-03-04 2019-02-07 Hitachi Metals, Ltd. Martensitic stainless steel member and method for manufacturing same, and martensitic stainless steel component and method for manufacturing 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

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 Martensitic stainless steel having surface high hardness, high corrosion resistance and high toughness
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 excellent in corrosion resistance
CN101372734A (en) * 2007-08-24 2009-02-25 宝山钢铁股份有限公司 Martensite stainless steel and manufacturing method thereof
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
US20230107193A1 (en) 2023-04-06
CA3171590A1 (en) 2021-09-23
JP2023517590A (en) 2023-04-26
KR20210117712A (en) 2021-09-29
KR102326693B1 (en) 2021-11-17
CN115667569A (en) 2023-01-31
WO2021187706A1 (en) 2021-09-23
EP4098765A1 (en) 2022-12-07

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