EP4361305A4 - AUSTENITIC STAINLESS STEEL AND ITS MANUFACTURING PROCESS - Google Patents

AUSTENITIC STAINLESS STEEL AND ITS MANUFACTURING PROCESS Download PDF

Info

Publication number: EP4361305A4
Authority: EP; European Patent Office
Prior art keywords: stainless steel; manufacturing process; austenitic stainless; austenitic; manufacturing
Prior art date: 2021-08-18
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

EP22858593.1A

Other languages

German (de)

French (fr)

Other versions

EP4361305A1 (en

Inventor

Sangseok KIM

Minam PARK

Jaepil Lee

Ilchan Jung

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.)

2021-08-18

Filing date

2022-06-23

Publication date

2024-10-09

2022-06-23 Application filed by Posco Co Ltd filed Critical Posco Co Ltd

2024-05-01 Publication of EP4361305A1 publication Critical patent/EP4361305A1/en

2024-10-09 Publication of EP4361305A4 publication Critical patent/EP4361305A4/en

Status Pending legal-status Critical Current

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
- 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 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
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—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 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
- 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
- C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment
- 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
- 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
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- 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)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
General Chemical & Material Sciences (AREA)
Heat Treatment Of Steel (AREA)
Heat Treatment Of Sheet Steel (AREA)

EP22858593.1A 2021-08-18 2022-06-23 AUSTENITIC STAINLESS STEEL AND ITS MANUFACTURING PROCESS Pending EP4361305A4 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
KR1020210108635A KR20230026705A (en)	2021-08-18	2021-08-18	Austenitic stainless steel and manufacturing method thereof
PCT/KR2022/008906 WO2023022351A1 (en)	2021-08-18	2022-06-23	Austenitic stainless steel and method for manufacturing same

Publications (2)

Publication Number	Publication Date
EP4361305A1 EP4361305A1 (en)	2024-05-01
EP4361305A4 true EP4361305A4 (en)	2024-10-09

Family

ID=85240636

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP22858593.1A Pending EP4361305A4 (en)	2021-08-18	2022-06-23	AUSTENITIC STAINLESS STEEL AND ITS MANUFACTURING PROCESS

Country Status (6)

Country	Link
US (1)	US20240336989A1 (en)
EP (1)	EP4361305A4 (en)
JP (1)	JP2024529999A (en)
KR (1)	KR20230026705A (en)
CN (1)	CN117813413A (en)
WO (1)	WO2023022351A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN116497279B (en) *	2023-04-28	2023-10-10	无锡市曙光高强度紧固件有限公司	High-strength high-wear-resistance stud and preparation process thereof
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

Citations (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4420347A (en) *	1981-07-31	1983-12-13	Nippon Steel Corporation	Process for producing an austenitic stainless steel sheet or strip
JPH08260111A (en) *	1995-03-24	1996-10-08	Nisshin Steel Co Ltd	Austenitic stainless steel sheet excellent in pocket wave resistance and its production
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
CN104583440A (en) *	2012-09-04	2015-04-29	新日铁住金株式会社	Stainless steel sheet and method for producing same
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
US20200277680A1 (en) *	2017-09-13	2020-09-03	Kobelco Steel Tube Co., Ltd.	Austenitic stainless steel and production method thereof
EP3862452A1 (en) *	2018-10-04	2021-08-11	Nippon Steel Corporation	Austenitic stainless steel sheet and method for producing same

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JP3877590B2 (en) *	2001-12-25	2007-02-07	日新製鋼株式会社	Highly elastic metastable austenitic stainless steel sheet and its manufacturing method
JP4406293B2 (en) *	2003-01-21	2010-01-27	日鉱金属株式会社	High strength austenitic stainless steel strip with excellent fatigue properties
JP4285303B2 (en) *	2004-03-31	2009-06-24	住友金属工業株式会社	Continuously variable transmission belt and stainless cold-rolled steel sheet therefor
EP2048256B1 (en) *	2006-07-28	2021-11-10	Nippon Steel Corporation	Stainless steel sheet for parts and process for manufacturing the same
JP5482962B2 (en) *	2011-03-01	2014-05-07	新日鐵住金株式会社	Manufacturing method of metal plate for laser processing and stainless steel plate for laser processing
WO2016043125A1 (en)	2014-09-17	2016-03-24	新日鐵住金株式会社	Austenitic stainless steel plate
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
KR102169457B1 (en) *	2018-12-18	2020-10-23	주식회사 포스코	High-strength stainless steel
WO2021075022A1 (en) *	2019-10-17	2021-04-22	日本製鉄株式会社	Austenitic stainless steel sheet
KR102326262B1 (en) *	2019-12-18	2021-11-15	주식회사 포스코	High yield ratio high strength austenitic stainless steel
KR102448735B1 (en) *	2020-09-03	2022-09-30	주식회사 포스코	Austenitic stainless steel and manufacturing method thereof

2021
- 2021-08-18 KR KR1020210108635A patent/KR20230026705A/en active Pending
2022
- 2022-06-23 JP JP2024506270A patent/JP2024529999A/en active Pending
- 2022-06-23 US US18/580,943 patent/US20240336989A1/en active Pending
- 2022-06-23 CN CN202280055970.4A patent/CN117813413A/en active Pending
- 2022-06-23 EP EP22858593.1A patent/EP4361305A4/en active Pending
- 2022-06-23 WO PCT/KR2022/008906 patent/WO2023022351A1/en not_active Ceased

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4420347A (en) *	1981-07-31	1983-12-13	Nippon Steel Corporation	Process for producing an austenitic stainless steel sheet or strip
JPH08260111A (en) *	1995-03-24	1996-10-08	Nisshin Steel Co Ltd	Austenitic stainless steel sheet excellent in pocket wave resistance and its production
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
CN104583440A (en) *	2012-09-04	2015-04-29	新日铁住金株式会社	Stainless steel sheet and method for producing same
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
US20200277680A1 (en) *	2017-09-13	2020-09-03	Kobelco Steel Tube Co., Ltd.	Austenitic stainless steel and production method thereof
EP3862452A1 (en) *	2018-10-04	2021-08-11	Nippon Steel Corporation	Austenitic stainless steel sheet and method for producing same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
RAJASEKHARA S ET AL: "HALL-PETCH BEHAVIOR IN ULTRA-FINE-GRAINED ALSL 301LN STAINLESS STEEL", METALLURGICAL AND MATERIALS TRANSACTIONS A, SPRINGER US, NEW YORK, vol. 6, no. 38A, June 2007 (2007-06-01), pages 1202 - 1210, XP001508157, ISSN: 1073-5623, DOI: 10.1007/S11661-007-9143-4 *
See also references of WO2023022351A1 *

Also Published As

Publication number	Publication date
KR20230026705A (en)	2023-02-27
CN117813413A (en)	2024-04-02
JP2024529999A (en)	2024-08-14
EP4361305A1 (en)	2024-05-01
WO2023022351A1 (en)	2023-02-23
US20240336989A1 (en)	2024-10-10

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