WO2020111856A3 - 연성 및 저온 인성이 우수한 고강도 강재 및 이의 제조방법 - Google Patents

연성 및 저온 인성이 우수한 고강도 강재 및 이의 제조방법 Download PDF

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Publication number
WO2020111856A3
WO2020111856A3 PCT/KR2019/016692 KR2019016692W WO2020111856A3 WO 2020111856 A3 WO2020111856 A3 WO 2020111856A3 KR 2019016692 W KR2019016692 W KR 2019016692W WO 2020111856 A3 WO2020111856 A3 WO 2020111856A3
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WO
WIPO (PCT)
Prior art keywords
steel sheet
low
temperature toughness
manufacturing
strength steel
Prior art date
Application number
PCT/KR2019/016692
Other languages
English (en)
French (fr)
Other versions
WO2020111856A2 (ko
Inventor
김상호
방기현
Original Assignee
주식회사 포스코
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 주식회사 포스코 filed Critical 주식회사 포스코
Priority to EP19891370.9A priority Critical patent/EP3889296B1/en
Priority to US17/297,740 priority patent/US20220042132A1/en
Priority to CN201980077747.8A priority patent/CN113166885B/zh
Priority to JP2021530170A priority patent/JP7221475B6/ja
Publication of WO2020111856A2 publication Critical patent/WO2020111856A2/ko
Publication of WO2020111856A3 publication Critical patent/WO2020111856A3/ko

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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
    • 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 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
    • 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
    • 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
    • C22C38/06—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

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  • 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)

Abstract

본 발명은 선박 또는 강 구조물 등에 적합한 구조용 강재에 관한 것으로서, 보다 상세하게는 연성 및 저온 인성이 우수한 고강도 강재 및 이의 제조방법에 관한 것이다.
PCT/KR2019/016692 2018-11-29 2019-11-29 연성 및 저온 인성이 우수한 고강도 강재 및 이의 제조방법 WO2020111856A2 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19891370.9A EP3889296B1 (en) 2018-11-29 2019-11-29 High-strength steel sheet having excellent ductility and low-temperature toughness and method for manufacturing thereof
US17/297,740 US20220042132A1 (en) 2018-11-29 2019-11-29 High-strength steel sheet having excellent ductility and low-temperature toughness and method for manufacturing thereof
CN201980077747.8A CN113166885B (zh) 2018-11-29 2019-11-29 延展性及低温韧性优秀的高强度钢材及其制造方法
JP2021530170A JP7221475B6 (ja) 2018-11-29 2019-11-29 延性及び低温靭性に優れた高強度鋼材及びその製造方法

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
KR10-2018-0150707 2018-11-29

Publications (2)

Publication Number Publication Date
WO2020111856A2 WO2020111856A2 (ko) 2020-06-04
WO2020111856A3 true WO2020111856A3 (ko) 2020-08-13

Family

ID=70852022

Family Applications (1)

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

Country Status (6)

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

Families Citing this family (3)

* 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
JPWO2023162190A1 (ko) * 2022-02-28 2023-08-31

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569314B2 (ko) * 1978-12-26 1981-02-28
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
JP2008179878A (ja) * 2006-12-28 2008-08-07 Jfe Steel Kk 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
KR20090069871A (ko) * 2007-12-26 2009-07-01 주식회사 포스코 용접열영향부의 저온인성과 인장강도가 우수한 고강도구조용 강재 및 그 제조방법
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

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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
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DE602005001558T2 (de) 2005-06-06 2008-03-06 The Swatch Group Management Services Ag Nichtausdehnbares Gliedarmband
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EP2752499B1 (en) * 2011-08-23 2016-10-05 Nippon Steel & Sumitomo Metal Corporation Thick wall electric resistance welded steel pipe and method of production of same
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
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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
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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569314B2 (ko) * 1978-12-26 1981-02-28
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
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
JP2008179878A (ja) * 2006-12-28 2008-08-07 Jfe Steel Kk 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
KR20090069871A (ko) * 2007-12-26 2009-07-01 주식회사 포스코 용접열영향부의 저온인성과 인장강도가 우수한 고강도구조용 강재 및 그 제조방법

Also Published As

Publication number Publication date
JP2022510212A (ja) 2022-01-26
EP3889296A2 (en) 2021-10-06
KR102164112B1 (ko) 2020-10-12
EP3889296C0 (en) 2023-10-18
CN113166885A (zh) 2021-07-23
EP3889296B1 (en) 2023-10-18
EP3889296A4 (en) 2021-11-03
US20220042132A1 (en) 2022-02-10
JP7221475B6 (ja) 2023-02-28
WO2020111856A2 (ko) 2020-06-04
KR20200064511A (ko) 2020-06-08
CN113166885B (zh) 2022-10-14
JP7221475B2 (ja) 2023-02-14

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