EP4640893A4 - Matériau d'acier austénitique et son procédé de fabrication - Google Patents

Matériau d'acier austénitique et son procédé de fabrication

Info

Publication number
EP4640893A4
EP4640893A4 EP23907502.1A EP23907502A EP4640893A4 EP 4640893 A4 EP4640893 A4 EP 4640893A4 EP 23907502 A EP23907502 A EP 23907502A EP 4640893 A4 EP4640893 A4 EP 4640893A4
Authority
EP
European Patent Office
Prior art keywords
steel material
manufacturing processes
austenitic steel
austenitic
processes
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
EP23907502.1A
Other languages
German (de)
English (en)
Other versions
EP4640893A1 (fr
Inventor
Soon-Gi Lee
Sang-Deok Kang
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 EP4640893A1 publication Critical patent/EP4640893A1/fr
Publication of EP4640893A4 publication Critical patent/EP4640893A4/fr
Pending legal-status Critical Current

Links

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
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • 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
    • 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
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • 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
    • C22C38/06—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
    • C22C38/20—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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • 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)
  • Heat Treatment Of Steel (AREA)
EP23907502.1A 2022-12-20 2023-12-04 Matériau d'acier austénitique et son procédé de fabrication Pending EP4640893A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220179677A KR20240097540A (ko) 2022-12-20 2022-12-20 오스테나이트계 강재 및 그 제조방법
PCT/KR2023/019765 WO2024136216A1 (fr) 2022-12-20 2023-12-04 Matériau d'acier austénitique et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP4640893A1 EP4640893A1 (fr) 2025-10-29
EP4640893A4 true EP4640893A4 (fr) 2026-04-01

Family

ID=91589369

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23907502.1A Pending EP4640893A4 (fr) 2022-12-20 2023-12-04 Matériau d'acier austénitique et son procédé de fabrication

Country Status (5)

Country Link
EP (1) EP4640893A4 (fr)
JP (1) JP2025542024A (fr)
KR (1) KR20240097540A (fr)
CN (1) CN120457233A (fr)
WO (1) WO2024136216A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140081587A (ko) * 2012-12-21 2014-07-01 주식회사 포스코 피삭성 및 용접 열영향부 극저온 인성이 우수한 오스테나이트계 강재 및 그의 제조방법
EP2799571A1 (fr) * 2011-12-27 2014-11-05 Posco Acier austénitique présentant une usinabilité et une résistance aux températures cryogéniques améliorées dans des zones affectées par la température de soudage, et procédé de production correspondant
EP3872212A1 (fr) * 2018-10-25 2021-09-01 Posco Acier austénitique cryogénique à haute teneur en manganèse ayant une excellente résistance à la corrosion et procédé de fabrication associé

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112018071995A2 (pt) * 2016-05-02 2019-02-12 Exxonmobil Research And Engineering Company tecnologia de soldagem em circunferência no campo para dutos de aço com alto teor de manganês para pasta fluida
EP3722448B1 (fr) * 2017-12-07 2024-03-06 JFE Steel Corporation Acier riche en mn, et procédé de fabrication de celui-ci
KR102004654B1 (ko) * 2018-03-23 2019-07-26 서울과학기술대학교 산학협력단 극저온 인성이 우수한 알루미늄 첨가 오스테나이트계 경량 고망간강 및 그의 제조방법
KR20200032866A (ko) * 2018-09-19 2020-03-27 현대제철 주식회사 저온 충격인성이 우수한 고강도 강재 및 그 제조방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2799571A1 (fr) * 2011-12-27 2014-11-05 Posco Acier austénitique présentant une usinabilité et une résistance aux températures cryogéniques améliorées dans des zones affectées par la température de soudage, et procédé de production correspondant
KR20140081587A (ko) * 2012-12-21 2014-07-01 주식회사 포스코 피삭성 및 용접 열영향부 극저온 인성이 우수한 오스테나이트계 강재 및 그의 제조방법
EP3872212A1 (fr) * 2018-10-25 2021-09-01 Posco Acier austénitique cryogénique à haute teneur en manganèse ayant une excellente résistance à la corrosion et procédé de fabrication associé

Also Published As

Publication number Publication date
KR20240097540A (ko) 2024-06-27
WO2024136216A1 (fr) 2024-06-27
CN120457233A (zh) 2025-08-08
JP2025542024A (ja) 2025-12-24
EP4640893A1 (fr) 2025-10-29

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