EP4023785A4 - Acier inoxydable austénitique hautement résistant à la corrosion ayant une excellente résistance au choc et une excellente aptitude au façonnage à chaud - Google Patents

Acier inoxydable austénitique hautement résistant à la corrosion ayant une excellente résistance au choc et une excellente aptitude au façonnage à chaud Download PDF

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Publication number
EP4023785A4
EP4023785A4 EP20861333.1A EP20861333A EP4023785A4 EP 4023785 A4 EP4023785 A4 EP 4023785A4 EP 20861333 A EP20861333 A EP 20861333A EP 4023785 A4 EP4023785 A4 EP 4023785A4
Authority
EP
European Patent Office
Prior art keywords
stainless steel
austenitic stainless
excellent impact
hot workability
impact toughness
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
EP20861333.1A
Other languages
German (de)
English (en)
Other versions
EP4023785A1 (fr
Inventor
Jisoo Kim
Gyujin JO
Manjae LEE
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 EP4023785A1 publication Critical patent/EP4023785A1/fr
Publication of EP4023785A4 publication Critical patent/EP4023785A4/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
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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 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
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • 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
    • 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
    • C21D8/0247—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
    • 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

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)
  • Heat Treatment Of Steel (AREA)
EP20861333.1A 2019-09-04 2020-07-07 Acier inoxydable austénitique hautement résistant à la corrosion ayant une excellente résistance au choc et une excellente aptitude au façonnage à chaud Pending EP4023785A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020190109377A KR20210028382A (ko) 2019-09-04 2019-09-04 충격인성 및 열간가공성이 우수한 고내식 오스테나이트계 스테인리스강
PCT/KR2020/008864 WO2021045371A1 (fr) 2019-09-04 2020-07-07 Acier inoxydable austénitique hautement résistant à la corrosion ayant une excellente résistance au choc et une excellente aptitude au façonnage à chaud

Publications (2)

Publication Number Publication Date
EP4023785A1 EP4023785A1 (fr) 2022-07-06
EP4023785A4 true EP4023785A4 (fr) 2022-11-09

Family

ID=74852400

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20861333.1A Pending EP4023785A4 (fr) 2019-09-04 2020-07-07 Acier inoxydable austénitique hautement résistant à la corrosion ayant une excellente résistance au choc et une excellente aptitude au façonnage à chaud

Country Status (5)

Country Link
EP (1) EP4023785A4 (fr)
JP (1) JP7271789B2 (fr)
KR (1) KR20210028382A (fr)
CN (1) CN114514333A (fr)
WO (1) WO2021045371A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6447817A (en) * 1987-08-13 1989-02-22 Nippon Steel Corp Production of austenitic stainless steel having excellent seawater corrosion resistance
JPS6468450A (en) * 1987-09-09 1989-03-14 Nippon Kokan Kk Austenitic stainless steel for seawater corrosion resistance
EP0320820A1 (fr) * 1987-12-12 1989-06-21 Nippon Steel Corporation Procédé de fabrication d'acier inoxydable à structure austénitique ayant une excellente résistance à l'eau de mer
JPH07157851A (ja) * 1994-06-07 1995-06-20 Nippon Yakin Kogyo Co Ltd 熱間加工性に優れる高耐食オーステナイトステンレス鋼
JP2005133144A (ja) * 2003-10-30 2005-05-26 Nippon Steel & Sumikin Stainless Steel Corp 熱間加工性および耐食性に優れたオーステナイト系ステンレス鋼
WO2016076254A1 (fr) * 2014-11-11 2016-05-19 新日鐵住金ステンレス株式会社 Tôle d'acier inoxydable austénitique à haute résistance à la corrosion

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100215727B1 (ko) * 1996-09-18 1999-08-16 박용수 시그마상 형성이 억제된 고내식성 듀플렉스 스테인리스강
KR19990005962A (ko) 1997-06-30 1999-01-25 김영환 디지탈 이동통신 시스템의 이동호 경로 구현방법
FR2780735B1 (fr) * 1998-07-02 2001-06-22 Usinor Acier inoxydable austenitique comportant une basse teneur en nickel et resistant a la corrosion
KR100327618B1 (ko) 1999-09-08 2002-03-14 윤덕용 텅스텐을 함유한 주조용 초내식성-고강도 이상 스테인레스강
KR20010038199A (ko) 1999-10-22 2001-05-15 장용균 이축배향된 강력 폴리에스테르 필름
JP3828067B2 (ja) * 2002-11-08 2006-09-27 新日鐵住金ステンレス株式会社 冷間加工性が良好な高耐食オーステナイト系ステンレス鋼
JP4437036B2 (ja) * 2003-12-26 2010-03-24 パナソニック株式会社 蓄電セル用ケース材料
SE528008C2 (sv) * 2004-12-28 2006-08-01 Outokumpu Stainless Ab Austenitiskt rostfritt stål och stålprodukt
JP4494237B2 (ja) * 2005-02-02 2010-06-30 新日鐵住金ステンレス株式会社 耐食性、強靱性および熱間加工性に優れるオーステナイト系ステンレス鋼材およびその製造方法
CN101613834A (zh) * 2008-06-25 2009-12-30 宝山钢铁股份有限公司 高酸性深井用Fe基奥氏体合金油套管及制造方法
FI125854B (fi) 2011-11-04 2016-03-15 Outokumpu Oy Dupleksi ruostumaton teräs
JP5850763B2 (ja) * 2012-02-27 2016-02-03 日新製鋼株式会社 ステンレス鋼拡散接合製品

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6447817A (en) * 1987-08-13 1989-02-22 Nippon Steel Corp Production of austenitic stainless steel having excellent seawater corrosion resistance
JPS6468450A (en) * 1987-09-09 1989-03-14 Nippon Kokan Kk Austenitic stainless steel for seawater corrosion resistance
EP0320820A1 (fr) * 1987-12-12 1989-06-21 Nippon Steel Corporation Procédé de fabrication d'acier inoxydable à structure austénitique ayant une excellente résistance à l'eau de mer
JPH07157851A (ja) * 1994-06-07 1995-06-20 Nippon Yakin Kogyo Co Ltd 熱間加工性に優れる高耐食オーステナイトステンレス鋼
JP2005133144A (ja) * 2003-10-30 2005-05-26 Nippon Steel & Sumikin Stainless Steel Corp 熱間加工性および耐食性に優れたオーステナイト系ステンレス鋼
WO2016076254A1 (fr) * 2014-11-11 2016-05-19 新日鐵住金ステンレス株式会社 Tôle d'acier inoxydable austénitique à haute résistance à la corrosion

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021045371A1 *

Also Published As

Publication number Publication date
CN114514333A (zh) 2022-05-17
JP2022546776A (ja) 2022-11-08
JP7271789B2 (ja) 2023-05-11
WO2021045371A1 (fr) 2021-03-11
EP4023785A1 (fr) 2022-07-06
KR20210028382A (ko) 2021-03-12

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