KR101917451B1 - 저온인성이 우수한 저항복비 강판 및 그 제조방법 - Google Patents

저온인성이 우수한 저항복비 강판 및 그 제조방법 Download PDF

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Publication number
KR101917451B1
KR101917451B1 KR1020160176126A KR20160176126A KR101917451B1 KR 101917451 B1 KR101917451 B1 KR 101917451B1 KR 1020160176126 A KR1020160176126 A KR 1020160176126A KR 20160176126 A KR20160176126 A KR 20160176126A KR 101917451 B1 KR101917451 B1 KR 101917451B1
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KR
South Korea
Prior art keywords
steel sheet
less
hot
ferrite
microstructure
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KR1020160176126A
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English (en)
Korean (ko)
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KR20180072496A (ko
Inventor
김우겸
엄경근
방기현
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주식회사 포스코
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Priority to KR1020160176126A priority Critical patent/KR101917451B1/ko
Priority to EP17882705.1A priority patent/EP3561107A4/en
Priority to JP2019532672A priority patent/JP6847225B2/ja
Priority to PCT/KR2017/014411 priority patent/WO2018117507A1/ko
Priority to CN201780079094.8A priority patent/CN110100027B/zh
Publication of KR20180072496A publication Critical patent/KR20180072496A/ko
Application granted granted Critical
Publication of KR101917451B1 publication Critical patent/KR101917451B1/ko

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    • 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
    • C21D1/26—Methods of annealing
    • C21D1/28—Normalising
    • 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 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
    • 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
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips 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
    • 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
    • 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
    • C22C38/06—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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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

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  • 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)
KR1020160176126A 2016-12-21 2016-12-21 저온인성이 우수한 저항복비 강판 및 그 제조방법 KR101917451B1 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1020160176126A KR101917451B1 (ko) 2016-12-21 2016-12-21 저온인성이 우수한 저항복비 강판 및 그 제조방법
EP17882705.1A EP3561107A4 (en) 2016-12-21 2017-12-08 LOW ELASTICITY STEEL SHEET HAVING EXCELLENT LOW TEMPERATURE TENACITY AND MANUFACTURING METHOD THEREOF
JP2019532672A JP6847225B2 (ja) 2016-12-21 2017-12-08 低温靭性に優れた低降伏比鋼板及びその製造方法
PCT/KR2017/014411 WO2018117507A1 (ko) 2016-12-21 2017-12-08 저온인성이 우수한 저항복비 강판 및 그 제조방법
CN201780079094.8A CN110100027B (zh) 2016-12-21 2017-12-08 具有优异的低温韧性的低屈服比的钢板及其制造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160176126A KR101917451B1 (ko) 2016-12-21 2016-12-21 저온인성이 우수한 저항복비 강판 및 그 제조방법

Publications (2)

Publication Number Publication Date
KR20180072496A KR20180072496A (ko) 2018-06-29
KR101917451B1 true KR101917451B1 (ko) 2018-11-09

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KR1020160176126A KR101917451B1 (ko) 2016-12-21 2016-12-21 저온인성이 우수한 저항복비 강판 및 그 제조방법

Country Status (5)

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EP (1) EP3561107A4 (ja)
JP (1) JP6847225B2 (ja)
KR (1) KR101917451B1 (ja)
CN (1) CN110100027B (ja)
WO (1) WO2018117507A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220064748A (ko) 2020-11-12 2022-05-19 현대제철 주식회사 고인성 니켈 강재 및 그 제조방법

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102200225B1 (ko) * 2019-09-03 2021-01-07 주식회사 포스코 극저온 횡팽창이 우수한 압력용기용 강판 및 그 제조 방법
JP7445686B2 (ja) * 2020-01-22 2024-03-07 ポスコ カンパニー リミテッド 黒鉛化熱処理用線材と黒鉛鋼及びその製造方法
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

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KR101412267B1 (ko) 2012-04-25 2014-07-02 현대제철 주식회사 강판 및 그 제조 방법

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JPH07278656A (ja) * 1994-04-04 1995-10-24 Nippon Steel Corp 低降伏比高張力鋼の製造方法
JP2000063946A (ja) * 1998-08-21 2000-02-29 Kawasaki Steel Corp 耐震部材用低降伏点厚鋼板の製造方法
JP2002105589A (ja) * 2000-09-26 2002-04-10 National Institute For Materials Science 低降伏比高張力鋼とその製造方法
JP4445161B2 (ja) * 2001-06-19 2010-04-07 新日本製鐵株式会社 疲労強度に優れた厚鋼板の製造方法
EP1662014B1 (en) * 2003-06-12 2018-03-07 JFE Steel Corporation Steel plate and welded steel tube exhibiting low yield ratio, high strength and high toughness and method for production thereof
KR100833075B1 (ko) * 2006-12-22 2008-05-27 주식회사 포스코 저온인성과 취성균열전파정지특성이 우수한 고강도저항복비 구조용 강재 및 그 제조방법
CN101775536A (zh) * 2009-01-13 2010-07-14 宝山钢铁股份有限公司 225MPa级抗震用低屈服强度钢及其制造方法
JP5834534B2 (ja) * 2010-06-29 2015-12-24 Ｊｆｅスチール株式会社 高一様伸び特性を備えた高強度低降伏比鋼、その製造方法、および高強度低降伏比溶接鋼管
JP5768603B2 (ja) * 2011-08-31 2015-08-26 Ｊｆｅスチール株式会社 高一様伸び特性を備え、かつ溶接部低温靱性に優れた高強度溶接鋼管、およびその製造方法
KR101403224B1 (ko) 2011-12-28 2014-06-02 주식회사 포스코 저항복비 특성 및 저온인성이 우수한 후 강판 및 그 제조방법
CN102586680A (zh) * 2012-03-22 2012-07-18 内蒙古包钢钢联股份有限公司 一种低屈强比的高层建筑结构用钢板及其正火工艺
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CN103667909B (zh) * 2013-12-13 2016-02-03 武汉钢铁(集团)公司 一种屈强比≤0.65的移动式海洋平台用钢及生产方法
KR101799202B1 (ko) * 2016-07-01 2017-11-20 주식회사 포스코 저항복비 특성 및 저온인성이 우수한 고강도 강판 및 그 제조방법

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220064748A (ko) 2020-11-12 2022-05-19 현대제철 주식회사 고인성 니켈 강재 및 그 제조방법

Also Published As

Publication number Publication date
WO2018117507A1 (ko) 2018-06-28
CN110100027B (zh) 2021-10-15
JP2020503435A (ja) 2020-01-30
KR20180072496A (ko) 2018-06-29
EP3561107A4 (en) 2020-01-01
CN110100027A (zh) 2019-08-06
EP3561107A1 (en) 2019-10-30
JP6847225B2 (ja) 2021-03-24

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