EP4177369A4 - AUSTENITIC STAINLESS STEEL AND PRODUCTION METHODS THEREFOR - Google Patents

AUSTENITIC STAINLESS STEEL AND PRODUCTION METHODS THEREFOR Download PDF

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Publication number
EP4177369A4
EP4177369A4 EP21864595.0A EP21864595A EP4177369A4 EP 4177369 A4 EP4177369 A4 EP 4177369A4 EP 21864595 A EP21864595 A EP 21864595A EP 4177369 A4 EP4177369 A4 EP 4177369A4
Authority
EP
European Patent Office
Prior art keywords
stainless steel
production methods
austenitic stainless
methods therefor
therefor
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
EP21864595.0A
Other languages
German (de)
French (fr)
Other versions
EP4177369A1 (en
Inventor
Sangseok KIM
Mi-Nam Park
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 EP4177369A1 publication Critical patent/EP4177369A1/en
Publication of EP4177369A4 publication Critical patent/EP4177369A4/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
    • 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
    • C21D6/005—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
    • 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
    • C21D8/0221—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
    • 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
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing 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
    • C22C38/04—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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • 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
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
    • 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
    • C21D2211/001—Austenite

Landscapes

  • 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)
EP21864595.0A 2020-09-03 2021-08-26 AUSTENITIC STAINLESS STEEL AND PRODUCTION METHODS THEREFOR Pending EP4177369A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200112382A KR102448735B1 (en) 2020-09-03 2020-09-03 Austenitic stainless steel and manufacturing method thereof
PCT/KR2021/011462 WO2022050635A1 (en) 2020-09-03 2021-08-26 Austenitic stainless steel and manufacturing method thereof

Publications (2)

Publication Number Publication Date
EP4177369A1 EP4177369A1 (en) 2023-05-10
EP4177369A4 true EP4177369A4 (en) 2024-07-17

Family

ID=80491149

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21864595.0A Pending EP4177369A4 (en) 2020-09-03 2021-08-26 AUSTENITIC STAINLESS STEEL AND PRODUCTION METHODS THEREFOR

Country Status (6)

Country Link
US (1) US20230279531A1 (en)
EP (1) EP4177369A4 (en)
JP (1) JP7603147B2 (en)
KR (1) KR102448735B1 (en)
CN (1) CN116075600B (en)
WO (1) WO2022050635A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102463015B1 (en) * 2020-11-23 2022-11-03 주식회사 포스코 High-strength austenitic stainless steel with excellent hot workability
KR102497442B1 (en) * 2020-11-25 2023-02-08 주식회사 포스코 Austenitic stainless steel for polymer fuel cell separator with improved contact resistance and manufacturing method thereof
KR20230026705A (en) * 2021-08-18 2023-02-27 주식회사 포스코 Austenitic stainless steel and manufacturing method thereof
KR20230091618A (en) * 2021-12-16 2023-06-23 주식회사 포스코 Austenitic stainless steel and method for producing the same
KR20230153865A (en) * 2022-04-29 2023-11-07 주식회사 포스코 Austenitic stainless steel
KR102833726B1 (en) 2022-11-15 2025-07-14 한국생산기술연구원 austenitic stainless steel and method for manufacturing the same
KR20240097192A (en) * 2022-12-20 2024-06-27 주식회사 포스코 Austenitic stainless steel and method for manufacturing the same
CN117026080B (en) * 2023-08-04 2025-12-26 北京科技大学 A high-strength medium-nitrogen austenitic stainless steel plate and its preparation method
CN118326282B (en) * 2024-06-13 2024-08-13 浦项(张家港)不锈钢股份有限公司 Austenitic stainless steel plate belt and manufacturing method thereof
CN119265480B (en) * 2024-09-13 2025-08-29 山西太钢不锈钢股份有限公司 A 301L stainless steel chilled plate for high-speed trains and its preparation method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005320587A (en) * 2004-05-10 2005-11-17 Nippon Yakin Kogyo Co Ltd Stainless steel sheet for photo-etching and method for producing the same
EP2048256A1 (en) * 2006-07-28 2009-04-15 Sumitomo Metal Industries, Ltd. Stainless steel sheet for parts and process for manufacturing the same
CN102650022A (en) * 2011-02-24 2012-08-29 宝山钢铁股份有限公司 Stainless steel for passenger cars and method for producing same
WO2014030607A1 (en) * 2012-08-20 2014-02-27 新日鐵住金株式会社 Stainless steel sheet and method for producing same
WO2014038510A1 (en) * 2012-09-04 2014-03-13 新日鐵住金株式会社 Stainless steel sheet and method for producing same
WO2016043125A1 (en) * 2014-09-17 2016-03-24 新日鐵住金株式会社 Austenitic stainless steel plate
WO2016047734A1 (en) * 2014-09-25 2016-03-31 新日鐵住金株式会社 Austenitic stainless steel sheet and method for producing same
WO2017057369A1 (en) * 2015-09-30 2017-04-06 新日鐵住金株式会社 Austenitic stainless steel

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
JP3068861B2 (en) * 1990-12-14 2000-07-24 日新製鋼株式会社 Stainless steel for engine gasket excellent in moldability and method of manufacturing the same
JPH0539549A (en) * 1991-12-12 1993-02-19 Aichi Steel Works Ltd High strength stainless steel and its production
KR100411286B1 (en) * 1996-12-24 2004-04-03 주식회사 포스코 High strength austenitic stainless steel with excellent corrosion resistance and weather resistance and steel sheet manufacturing method using the same
EP1394280A4 (en) * 2001-04-27 2004-07-14 Sumitomo Metal Ind METAL TRIM, RAW MATERIAL AND METHODS OF PRODUCING
JP3954954B2 (en) * 2002-10-25 2007-08-08 新日本製鐵株式会社 Manufacturing method of austenitic stainless steel and strip slab
JP5056985B2 (en) * 2009-11-18 2012-10-24 住友金属工業株式会社 Austenitic stainless steel sheet and manufacturing method thereof
JP5500960B2 (en) * 2009-12-01 2014-05-21 新日鐵住金ステンレス株式会社 Fine grain austenitic stainless steel sheet with excellent stress corrosion cracking resistance and workability
CN104379773B (en) * 2012-01-20 2017-09-12 索罗不锈有限责任公司 Austenite stainless product made from steel and its manufacture method
JP6423138B2 (en) 2013-06-14 2018-11-14 新日鐵住金ステンレス株式会社 Austenitic stainless steel for fuel reformer with excellent adhesion of oxide film and method for producing the same
JP2020050940A (en) 2018-09-28 2020-04-02 国立研究開発法人日本原子力研究開発機構 Method for producing austenitic fine-grained stainless steel
JP7165202B2 (en) * 2018-10-04 2022-11-02 日本製鉄株式会社 Austenitic stainless steel sheet and manufacturing method thereof
AU2021245528B2 (en) * 2020-03-30 2023-08-17 Nippon Steel Stainless Steel Corporation Austenitic stainless steel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005320587A (en) * 2004-05-10 2005-11-17 Nippon Yakin Kogyo Co Ltd Stainless steel sheet for photo-etching and method for producing the same
EP2048256A1 (en) * 2006-07-28 2009-04-15 Sumitomo Metal Industries, Ltd. Stainless steel sheet for parts and process for manufacturing the same
CN102650022A (en) * 2011-02-24 2012-08-29 宝山钢铁股份有限公司 Stainless steel for passenger cars and method for producing same
WO2014030607A1 (en) * 2012-08-20 2014-02-27 新日鐵住金株式会社 Stainless steel sheet and method for producing same
WO2014038510A1 (en) * 2012-09-04 2014-03-13 新日鐵住金株式会社 Stainless steel sheet and method for producing same
WO2016043125A1 (en) * 2014-09-17 2016-03-24 新日鐵住金株式会社 Austenitic stainless steel plate
WO2016047734A1 (en) * 2014-09-25 2016-03-31 新日鐵住金株式会社 Austenitic stainless steel sheet and method for producing same
WO2017057369A1 (en) * 2015-09-30 2017-04-06 新日鐵住金株式会社 Austenitic stainless steel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022050635A1 *

Also Published As

Publication number Publication date
CN116075600A (en) 2023-05-05
KR20220030722A (en) 2022-03-11
EP4177369A1 (en) 2023-05-10
JP7603147B2 (en) 2024-12-19
JP2023538602A (en) 2023-09-08
WO2022050635A1 (en) 2022-03-10
CN116075600B (en) 2025-03-21
US20230279531A1 (en) 2023-09-07
KR102448735B1 (en) 2022-09-30

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Ipc: C22C 38/00 20060101ALI20240611BHEP

Ipc: C22C 38/58 20060101ALI20240611BHEP

Ipc: C22C 38/04 20060101ALI20240611BHEP

Ipc: C22C 38/02 20060101ALI20240611BHEP

Ipc: C22C 38/40 20060101AFI20240611BHEP