EP4119693A4 - Acier austénitique inoxydable peu coûteux présentant une résistance élevée et une grande aptitude au façonnage et son procédé de fabrication - Google Patents

Acier austénitique inoxydable peu coûteux présentant une résistance élevée et une grande aptitude au façonnage et son procédé de fabrication Download PDF

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Publication number
EP4119693A4
EP4119693A4 EP21793437.1A EP21793437A EP4119693A4 EP 4119693 A4 EP4119693 A4 EP 4119693A4 EP 21793437 A EP21793437 A EP 21793437A EP 4119693 A4 EP4119693 A4 EP 4119693A4
Authority
EP
European Patent Office
Prior art keywords
low
stainless steel
austenitic stainless
manufacturing same
high strength
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
EP21793437.1A
Other languages
German (de)
English (en)
Other versions
EP4119693A1 (fr
Inventor
Seokweon SONG
Jong-Su Paek
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 EP4119693A1 publication Critical patent/EP4119693A1/fr
Publication of EP4119693A4 publication Critical patent/EP4119693A4/fr
Pending legal-status Critical Current

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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
    • C22C38/18—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
    • 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
    • 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
    • C21D8/0221—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
    • C21D8/0242—Flattening; Dressing; Flexing
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • 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 Sheet Steel (AREA)
EP21793437.1A 2020-04-22 2021-02-02 Acier austénitique inoxydable peu coûteux présentant une résistance élevée et une grande aptitude au façonnage et son procédé de fabrication Pending EP4119693A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200048614A KR102385472B1 (ko) 2020-04-22 2020-04-22 고강도, 고성형의 저원가 오스테나이트계 스테인리스강 및 그 제조방법
PCT/KR2021/001345 WO2021215630A1 (fr) 2020-04-22 2021-02-02 Acier austénitique inoxydable peu coûteux présentant une résistance élevée et une grande aptitude au façonnage et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP4119693A1 EP4119693A1 (fr) 2023-01-18
EP4119693A4 true EP4119693A4 (fr) 2024-04-24

Family

ID=78269451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21793437.1A Pending EP4119693A4 (fr) 2020-04-22 2021-02-02 Acier austénitique inoxydable peu coûteux présentant une résistance élevée et une grande aptitude au façonnage et son procédé de fabrication

Country Status (6)

Country Link
US (1) US20230142021A1 (fr)
EP (1) EP4119693A4 (fr)
JP (1) JP7395769B2 (fr)
KR (1) KR102385472B1 (fr)
CN (1) CN115398022B (fr)
WO (1) WO2021215630A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102463015B1 (ko) * 2020-11-23 2022-11-03 주식회사 포스코 열간가공성이 우수한 고강도 오스테나이트계 스테인리스강
KR20230091618A (ko) * 2021-12-16 2023-06-23 주식회사 포스코 오스테나이트계 스테인리스 강 및 그 제조방법

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030055029A (ko) * 2001-12-26 2003-07-02 주식회사 포스코 가공경화형 오스테나이트계 스테인레스강
KR20060025873A (ko) * 2004-09-17 2006-03-22 주식회사 포스코 열간 가공성 및 냉간 가공성이 우수한 고망간 고질소오스테나이트계 스테인리스강
KR20060075725A (ko) * 2004-12-29 2006-07-04 주식회사 포스코 가공경화형 저 니켈 오스테나이트계 스테인레스강
KR20060110103A (ko) * 2005-04-19 2006-10-24 주식회사 포스코 고망간 및 고질소 오스테나이트계 스테인레스강
CN101724790A (zh) * 2008-10-23 2010-06-09 宝山钢铁股份有限公司 一种节镍奥氏体不锈钢及其制造方法
CN109112430A (zh) * 2017-06-26 2019-01-01 宝钢不锈钢有限公司 一种低成本高强度节镍奥氏体不锈钢及制造方法

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US5286310A (en) * 1992-10-13 1994-02-15 Allegheny Ludlum Corporation Low nickel, copper containing chromium-nickel-manganese-copper-nitrogen austenitic stainless steel
JP5165236B2 (ja) 2006-12-27 2013-03-21 新日鐵住金ステンレス株式会社 衝撃吸収特性に優れた構造部材用ステンレス鋼板
CN101270455B (zh) * 2007-03-23 2010-08-11 宝山钢铁股份有限公司 1000MPa级节镍型亚稳奥氏体不锈钢
FI125442B (fi) 2010-05-06 2015-10-15 Outokumpu Oy Matalanikkelinen austeniittinen ruostumaton teräs ja teräksen käyttö
JP6095619B2 (ja) * 2014-08-19 2017-03-15 日新製鋼株式会社 オーステナイト系ステンレス鋼板およびメタルガスケット
KR101638007B1 (ko) 2014-12-11 2016-07-13 한국기계연구원 강도와 인성이 우수한 니켈 저감형 저원가 오스테나이트계 스테인리스 강
KR101903174B1 (ko) 2016-12-13 2018-10-01 주식회사 포스코 강도 및 연성이 우수한 저합금 강판
KR101952818B1 (ko) * 2017-09-25 2019-02-28 주식회사포스코 강도 및 연성이 우수한 저합금 강판 및 이의 제조방법
CN109837470B (zh) * 2017-11-29 2022-04-01 宝钢德盛不锈钢有限公司 一种高强度含氮经济型奥氏体不锈钢及其制造方法

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Publication number Priority date Publication date Assignee Title
KR20030055029A (ko) * 2001-12-26 2003-07-02 주식회사 포스코 가공경화형 오스테나이트계 스테인레스강
KR20060025873A (ko) * 2004-09-17 2006-03-22 주식회사 포스코 열간 가공성 및 냉간 가공성이 우수한 고망간 고질소오스테나이트계 스테인리스강
KR20060075725A (ko) * 2004-12-29 2006-07-04 주식회사 포스코 가공경화형 저 니켈 오스테나이트계 스테인레스강
KR20060110103A (ko) * 2005-04-19 2006-10-24 주식회사 포스코 고망간 및 고질소 오스테나이트계 스테인레스강
CN101724790A (zh) * 2008-10-23 2010-06-09 宝山钢铁股份有限公司 一种节镍奥氏体不锈钢及其制造方法
CN109112430A (zh) * 2017-06-26 2019-01-01 宝钢不锈钢有限公司 一种低成本高强度节镍奥氏体不锈钢及制造方法

Non-Patent Citations (1)

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Title
See also references of WO2021215630A1 *

Also Published As

Publication number Publication date
JP7395769B2 (ja) 2023-12-11
WO2021215630A1 (fr) 2021-10-28
EP4119693A1 (fr) 2023-01-18
US20230142021A1 (en) 2023-05-11
KR20210130426A (ko) 2021-11-01
KR102385472B1 (ko) 2022-04-13
CN115398022B (zh) 2023-11-28
CN115398022A (zh) 2022-11-25
JP2023522999A (ja) 2023-06-01

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Inventor name: PAEK, JONG-SU

Inventor name: SONG, SEOKWEON