EP3889296C0 - Hochfestes stahlblech mit hervorragender duktilität und tieftemperaturbeständigkeit sowie verfahren zur herstellung davon - Google Patents

Hochfestes stahlblech mit hervorragender duktilität und tieftemperaturbeständigkeit sowie verfahren zur herstellung davon

Info

Publication number
EP3889296C0
EP3889296C0 EP19891370.9A EP19891370A EP3889296C0 EP 3889296 C0 EP3889296 C0 EP 3889296C0 EP 19891370 A EP19891370 A EP 19891370A EP 3889296 C0 EP3889296 C0 EP 3889296C0
Authority
EP
European Patent Office
Prior art keywords
producing
low
steel sheet
same
temperature 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.)
Active
Application number
EP19891370.9A
Other languages
English (en)
French (fr)
Other versions
EP3889296A2 (de
EP3889296B1 (de
EP3889296A4 (de
Inventor
Sang Ho Kim
Ki-Hyun Bang
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 EP3889296A2 publication Critical patent/EP3889296A2/de
Publication of EP3889296A4 publication Critical patent/EP3889296A4/de
Application granted granted Critical
Publication of EP3889296B1 publication Critical patent/EP3889296B1/de
Publication of EP3889296C0 publication Critical patent/EP3889296C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C21D9/46—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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/02—Hardening articles or materials formed by forging or rolling, with no further heating beyond that required for the formation
    • 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
    • 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
    • C22C38/06—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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C21D2211/002—Bainite
    • 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
    • C21D2211/005—Ferrite
    • 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
    • C21D2211/009—Pearlite

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)
EP19891370.9A 2018-11-29 2019-11-29 Hochfestes stahlblech mit hervorragender duktilität und tieftemperaturbeständigkeit sowie verfahren zur herstellung davon Active EP3889296B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020180150707A KR102164112B1 (ko) 2018-11-29 2018-11-29 연성 및 저온 인성이 우수한 고강도 강재 및 이의 제조방법
PCT/KR2019/016692 WO2020111856A2 (ko) 2018-11-29 2019-11-29 연성 및 저온 인성이 우수한 고강도 강재 및 이의 제조방법

Publications (4)

Publication Number Publication Date
EP3889296A2 EP3889296A2 (de) 2021-10-06
EP3889296A4 EP3889296A4 (de) 2021-11-03
EP3889296B1 EP3889296B1 (de) 2023-10-18
EP3889296C0 true EP3889296C0 (de) 2023-10-18

Family

ID=70852022

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19891370.9A Active EP3889296B1 (de) 2018-11-29 2019-11-29 Hochfestes stahlblech mit hervorragender duktilität und tieftemperaturbeständigkeit sowie verfahren zur herstellung davon

Country Status (6)

Country Link
US (1) US20220042132A1 (de)
EP (1) EP3889296B1 (de)
JP (1) JP7221475B6 (de)
KR (1) KR102164112B1 (de)
CN (1) CN113166885B (de)
WO (1) WO2020111856A2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102484998B1 (ko) * 2020-12-11 2023-01-05 주식회사 포스코 연성이 우수한 고강도 강판 및 그 제조방법
CN113061811A (zh) * 2021-03-17 2021-07-02 攀钢集团江油长城特殊钢有限公司 一种lng船用结构钢及其制备方法
JP7726367B2 (ja) * 2022-02-28 2025-08-20 Ｊｆｅスチール株式会社 鋼板、部材、それらの製造方法、冷延鋼板用熱延鋼板の製造方法及び冷延鋼板の製造方法
KR20240098514A (ko) * 2022-12-21 2024-06-28 주식회사 포스코 강도와 인성이 우수한 강판 및 그 제조방법

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5582A (en) * 1978-12-26 1980-01-05 Setsuo Kuroki Cigarette pipe
JPS62130216A (ja) * 1985-12-02 1987-06-12 Kobe Steel Ltd 加速冷却型厚肉高靭性高張力鋼板の製造方法
JP3849244B2 (ja) * 1997-09-16 2006-11-22 Ｊｆｅスチール株式会社 繰返し大変形下での延性き裂進展抵抗の優れた鋼材及びその製造方法
JP3434445B2 (ja) * 1997-12-26 2003-08-11 新日本製鐵株式会社 耐衝撃吸収能に優れた船体用鋼板
JP3848091B2 (ja) 2001-02-28 2006-11-22 株式会社神戸製鋼所 歪時効による靭性劣化の少ない鋼板
KR20070003918A (ko) * 2004-03-11 2007-01-05 신닛뽄세이테쯔 카부시키카이샤 피삭성과 인성 및 용접성이 우수한 강판 및 그 제조 방법
JP4626394B2 (ja) 2005-05-18 2011-02-09 Ｊｆｅスチール株式会社 低温靱性に優れた厚鋼板の製造方法
EP1731053B1 (de) 2005-06-06 2007-07-04 The Swatch Group Management Services AG Nichtausdehnbares Gliedarmband
JP4728710B2 (ja) * 2005-07-01 2011-07-20 新日本製鐵株式会社 加工性に優れる熱延鋼板およびその製造方法
JP4476923B2 (ja) * 2005-12-15 2010-06-09 株式会社神戸製鋼所 衝突吸収性と母材靭性に優れた鋼板
JP4985086B2 (ja) * 2006-12-28 2012-07-25 Ｊｆｅスチール株式会社 脆性亀裂伝播停止特性に優れた高張力厚鋼板およびその製造方法
WO2009072753A1 (en) 2007-12-04 2009-06-11 Posco High-strength steel sheet with excellent low temperature toughness and manufacturing method thereof
KR100957962B1 (ko) * 2007-12-26 2010-05-17 주식회사 포스코 용접열영향부의 저온인성과 인장강도가 우수한 고강도구조용 강재 및 그 제조방법
KR100928782B1 (ko) * 2007-12-26 2009-11-25 주식회사 포스코 용접열영향부의 저온인성과 인장강도가 우수한 고강도구조용 강재 및 그 제조방법
KR20120026641A (ko) * 2009-11-20 2012-03-19 신닛뽄세이테쯔 카부시키카이샤 선체용 후강판 및 그 제조 방법
KR101367352B1 (ko) * 2011-08-23 2014-02-26 신닛테츠스미킨 카부시키카이샤 후육 전봉 강관 및 그의 제조 방법
JP5953952B2 (ja) 2011-11-30 2016-07-20 Ｊｆｅスチール株式会社 耐衝突性に優れた鋼材およびその製造方法
KR101344610B1 (ko) * 2012-02-28 2013-12-26 현대제철 주식회사 강판 및 그 제조 방법
JP5516659B2 (ja) * 2012-06-28 2014-06-11 Ｊｆｅスチール株式会社 中温域の長期耐軟化性に優れた高強度電縫鋼管及びその製造方法
KR101482359B1 (ko) * 2012-12-27 2015-01-13 주식회사 포스코 극저온 인성이 우수하고 저항복비 특성을 갖는 고강도 강판 및 그의 제조방법
KR101536387B1 (ko) * 2012-12-27 2015-07-13 주식회사 포스코 극저온 인성이 우수하고 저항복비 특성을 가지는 고강도 강판 및 그의 제조방법
JP5994819B2 (ja) 2014-05-30 2016-09-21 新日鐵住金株式会社 耐衝撃性に優れた鋼板及びその製造方法
JP6676973B2 (ja) * 2016-01-13 2020-04-08 日本製鉄株式会社 熱延鋼板およびその製造方法

Also Published As

Publication number Publication date
CN113166885A (zh) 2021-07-23
KR102164112B1 (ko) 2020-10-12
EP3889296A2 (de) 2021-10-06
JP2022510212A (ja) 2022-01-26
EP3889296B1 (de) 2023-10-18
EP3889296A4 (de) 2021-11-03
US20220042132A1 (en) 2022-02-10
JP7221475B2 (ja) 2023-02-14
WO2020111856A2 (ko) 2020-06-04
CN113166885B (zh) 2022-10-14
KR20200064511A (ko) 2020-06-08
JP7221475B6 (ja) 2023-02-28
WO2020111856A3 (ko) 2020-08-13

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