EP4455326A4 - Austenitischer stahl mit hervorragender beständigkeit gegen extrem niedrige temperaturen in wärmeeinflusster schweisszone und herstellungsverfahren dafür - Google Patents

Austenitischer stahl mit hervorragender beständigkeit gegen extrem niedrige temperaturen in wärmeeinflusster schweisszone und herstellungsverfahren dafür

Info

Publication number
EP4455326A4
EP4455326A4 EP22911854.2A EP22911854A EP4455326A4 EP 4455326 A4 EP4455326 A4 EP 4455326A4 EP 22911854 A EP22911854 A EP 22911854A EP 4455326 A4 EP4455326 A4 EP 4455326A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
heat
extremely low
low temperatures
excellent resistance
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
EP22911854.2A
Other languages
English (en)
French (fr)
Other versions
EP4455326A1 (de
Inventor
Soon-Gi Lee
Jong-Kyo Choi
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 EP4455326A1 publication Critical patent/EP4455326A1/de
Publication of EP4455326A4 publication Critical patent/EP4455326A4/de
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
    • C21D6/00—Heat treatment 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/002—Heat treatment of ferrous alloys containing Cr
    • 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
    • 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
    • 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
    • C22C38/18—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
    • C22C38/58—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
    • 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)
  • Heat Treatment Of Articles (AREA)
EP22911854.2A 2021-12-21 2022-12-20 Austenitischer stahl mit hervorragender beständigkeit gegen extrem niedrige temperaturen in wärmeeinflusster schweisszone und herstellungsverfahren dafür Pending EP4455326A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20210184271 2021-12-21
PCT/KR2022/020834 WO2023121221A1 (ko) 2021-12-21 2022-12-20 용접 열영향부 초저온 인성이 우수한 오스테나이트계 강재 및 그 제조방법

Publications (2)

Publication Number Publication Date
EP4455326A1 EP4455326A1 (de) 2024-10-30
EP4455326A4 true EP4455326A4 (de) 2026-01-14

Family

ID=86903420

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22911854.2A Pending EP4455326A4 (de) 2021-12-21 2022-12-20 Austenitischer stahl mit hervorragender beständigkeit gegen extrem niedrige temperaturen in wärmeeinflusster schweisszone und herstellungsverfahren dafür

Country Status (7)

Country Link
US (1) US20250034671A1 (de)
EP (1) EP4455326A4 (de)
JP (1) JP2024545707A (de)
KR (1) KR20240128034A (de)
CN (1) CN118369451A (de)
CA (1) CA3236520A1 (de)
WO (1) WO2023121221A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118460936B (zh) * 2024-04-23 2026-02-17 南京钢铁股份有限公司 一种超低温钢及其热处理方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130075565A (ko) * 2011-12-27 2013-07-05 주식회사 포스코 용접 열영향부 극저온 인성이 우수한 오스테나이트 강재
CN107620010A (zh) * 2017-10-18 2018-01-23 舞阳钢铁有限责任公司 一种低屈强比高韧性高锰钢板及其生产方法
EP3617337A1 (de) * 2017-04-26 2020-03-04 JFE Steel Corporation Stahl mit hohem mn-gehalt und herstellungsverfahren dafür
WO2021033694A1 (ja) * 2019-08-21 2021-02-25 Ｊｆｅスチール株式会社 鋼およびその製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2905293B1 (fr) * 2006-09-06 2008-11-07 Air Liquide Fil, flux et procede de soudage des aciers a forte teneur en nickel
JP5924058B2 (ja) * 2011-10-03 2016-05-25 Ｊｆｅスチール株式会社 溶接熱影響部の低温靭性に優れた高張力鋼板およびその製造方法
JP6078554B2 (ja) * 2011-12-27 2017-02-08 ポスコＰｏｓｃｏ 被削性及び溶接熱影響部における極低温靱性に優れたオーステナイト系鋼材及びその製造方法
KR101477375B1 (ko) * 2013-02-27 2014-12-30 현대제철 주식회사 강판 및 그 제조 방법
WO2020085858A1 (ko) * 2018-10-25 2020-04-30 주식회사 포스코 형상이 우수한 극저온용 오스테나이트계 고망간 강재 및 그 제조방법
KR102255825B1 (ko) * 2018-10-25 2021-05-26 주식회사 포스코 형상이 우수한 극저온용 오스테나이트계 고망간 강재 및 그 제조방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130075565A (ko) * 2011-12-27 2013-07-05 주식회사 포스코 용접 열영향부 극저온 인성이 우수한 오스테나이트 강재
EP3617337A1 (de) * 2017-04-26 2020-03-04 JFE Steel Corporation Stahl mit hohem mn-gehalt und herstellungsverfahren dafür
CN107620010A (zh) * 2017-10-18 2018-01-23 舞阳钢铁有限责任公司 一种低屈强比高韧性高锰钢板及其生产方法
WO2021033694A1 (ja) * 2019-08-21 2021-02-25 Ｊｆｅスチール株式会社 鋼およびその製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2023121221A1 *

Also Published As

Publication number Publication date
CN118369451A (zh) 2024-07-19
EP4455326A1 (de) 2024-10-30
JP2024545707A (ja) 2024-12-10
WO2023121221A1 (ko) 2023-06-29
US20250034671A1 (en) 2025-01-30
KR20240128034A (ko) 2024-08-23
CA3236520A1 (en) 2023-06-29

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