EP4265799A4 - Acier inoxydable austénitique à résistance à la corrosion et à usinabilité améliorées et son procédé de fabrication - Google Patents

Acier inoxydable austénitique à résistance à la corrosion et à usinabilité améliorées et son procédé de fabrication

Info

Publication number
EP4265799A4
EP4265799A4 EP21911342.0A EP21911342A EP4265799A4 EP 4265799 A4 EP4265799 A4 EP 4265799A4 EP 21911342 A EP21911342 A EP 21911342A EP 4265799 A4 EP4265799 A4 EP 4265799A4
Authority
EP
European Patent Office
Prior art keywords
machines
manufacturing
stainless steel
corrosion resistance
austenitic stainless
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
EP21911342.0A
Other languages
German (de)
English (en)
Other versions
EP4265799A1 (fr
Inventor
Hyung-Gu Kang
Mi-Nam Park
Youngjun Kim
Youngjin Kwon
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 EP4265799A1 publication Critical patent/EP4265799A1/fr
Publication of EP4265799A4 publication Critical patent/EP4265799A4/fr
Pending legal-status Critical Current

Links

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
    • 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
    • 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
    • C21D8/0247—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
    • 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
    • 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
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/004—Dispersions; Precipitations

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)
EP21911342.0A 2020-12-21 2021-12-10 Acier inoxydable austénitique à résistance à la corrosion et à usinabilité améliorées et son procédé de fabrication Pending EP4265799A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200179748A KR102570524B1 (ko) 2020-12-21 2020-12-21 내식성과 절삭성이 향상된 오스테나이트계 스테인리스강 및 그 제조방법
PCT/KR2021/018701 WO2022139275A1 (fr) 2020-12-21 2021-12-10 Acier inoxydable austénitique à résistance à la corrosion et à usinabilité améliorées et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP4265799A1 EP4265799A1 (fr) 2023-10-25
EP4265799A4 true EP4265799A4 (fr) 2025-10-29

Family

ID=82159585

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21911342.0A Pending EP4265799A4 (fr) 2020-12-21 2021-12-10 Acier inoxydable austénitique à résistance à la corrosion et à usinabilité améliorées et son procédé de fabrication

Country Status (6)

Country Link
US (1) US20240309500A1 (fr)
EP (1) EP4265799A4 (fr)
JP (1) JP7607775B2 (fr)
KR (1) KR102570524B1 (fr)
CN (1) CN116848283B (fr)
WO (1) WO2022139275A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102497442B1 (ko) * 2020-11-25 2023-02-08 주식회사 포스코 접촉저항이 향상된 고분자 연료전지 분리판용 오스테나이트계 스테인리스강 및 그 제조 방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH073404A (ja) * 1993-06-22 1995-01-06 Nkk Corp 清浄度と溶接性に優れたオーステナイト系ステンレス鋼
JPH07197205A (ja) * 1993-12-29 1995-08-01 Nkk Corp オーステナイト系ステンレス鋼薄板及びその製造方法
JP2003073785A (ja) * 2001-08-31 2003-03-12 National Institute For Materials Science オーステナイトステンレス系耐熱鋼

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02209454A (ja) * 1989-02-08 1990-08-20 Nkk Corp 快削ステンレス鋼
JPH07113144A (ja) * 1993-10-18 1995-05-02 Nisshin Steel Co Ltd 表面性状に優れた非磁性ステンレス鋼及びその製造方法
KR100411286B1 (ko) * 1996-12-24 2004-04-03 주식회사 포스코 내식성및내후성이우수한고강도오스테나이트계스테인레스강및이를이용한강판제조방법
JP2003129191A (ja) * 2001-10-24 2003-05-08 Nisshin Steel Co Ltd 窒化硼素含有快削性ステンレス鋼材およびその製造法
JP4850444B2 (ja) * 2005-06-27 2012-01-11 新日鐵住金ステンレス株式会社 延性に優れる高強度・高耐食性の安価オーステナイト系ステンレス鋼線
JP2007284768A (ja) * 2006-04-19 2007-11-01 Daido Steel Co Ltd オーステナイト系ステンレス鋼
JP5142289B2 (ja) * 2006-07-31 2013-02-13 独立行政法人物質・材料研究機構 快削ステンレス鋼及びその製造方法
FI124993B (fi) * 2012-09-27 2015-04-15 Outokumpu Oy Austeniittinen ruostumaton teräs
JP6347864B1 (ja) * 2017-03-24 2018-06-27 日新製鋼株式会社 オーステナイト系ステンレス鋼スラブの製造方法
KR102015510B1 (ko) * 2017-12-06 2019-08-28 주식회사 포스코 내식성이 우수한 비자성 오스테나이트계 스테인리스강 및 그 제조방법
JP7077033B2 (ja) 2018-02-02 2022-05-30 日鉄ステンレス株式会社 接合体の製造方法
KR102160735B1 (ko) * 2018-08-13 2020-09-28 주식회사 포스코 강도가 향상된 오스테나이트계 스테인리스강

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH073404A (ja) * 1993-06-22 1995-01-06 Nkk Corp 清浄度と溶接性に優れたオーステナイト系ステンレス鋼
JPH07197205A (ja) * 1993-12-29 1995-08-01 Nkk Corp オーステナイト系ステンレス鋼薄板及びその製造方法
JP2003073785A (ja) * 2001-08-31 2003-03-12 National Institute For Materials Science オーステナイトステンレス系耐熱鋼

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022139275A1 *

Also Published As

Publication number Publication date
EP4265799A1 (fr) 2023-10-25
KR20220089276A (ko) 2022-06-28
KR102570524B1 (ko) 2023-08-24
JP7607775B2 (ja) 2024-12-27
JP2024500905A (ja) 2024-01-10
CN116848283B (zh) 2026-04-07
US20240309500A1 (en) 2024-09-19
WO2022139275A1 (fr) 2022-06-30
CN116848283A (zh) 2023-10-03

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