WO2018117450A8 - 저온인성 및 후열처리 특성이 우수한 내sour 후판 강재 및 그 제조방법 - Google Patents

저온인성 및 후열처리 특성이 우수한 내sour 후판 강재 및 그 제조방법 Download PDF

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WO2018117450A8
WO2018117450A8 PCT/KR2017/013553 KR2017013553W WO2018117450A8 WO 2018117450 A8 WO2018117450 A8 WO 2018117450A8 KR 2017013553 W KR2017013553 W KR 2017013553W WO 2018117450 A8 WO2018117450 A8 WO 2018117450A8
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steel plate
wall steel
sour
less
post
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PCT/KR2017/013553
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English (en)
French (fr)
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WO2018117450A1 (ko
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고성웅
박재현
배무종
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주식회사 포스코
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Priority to CN201780079347.1A priority Critical patent/CN110114495A/zh
Priority to JP2019532675A priority patent/JP6886519B2/ja
Priority to EP17884620.0A priority patent/EP3561129A4/en
Priority to US16/471,257 priority patent/US11649519B2/en
Publication of WO2018117450A1 publication Critical patent/WO2018117450A1/ko
Publication of WO2018117450A8 publication Critical patent/WO2018117450A8/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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
    • 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
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/008—Heat treatment of ferrous alloys containing Si
    • 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
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • 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
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • 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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
    • C22C38/18—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
    • C21D2211/002—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

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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)
  • Heat Treatment Of Articles (AREA)

Abstract

저온인성 및 후열처리 특성이 우수한 내SOUR 후판 강재 및 그 제조방법이 제공된다. 본 발명의 내SOUR 후판 강재는, 중량%로, C: 0.02~0.06%; Si: 0.5% 이하(0% 미포함); Mn: 0.8~2.0%; P: 0.03% 이하; S: 0.003% 이하; Al: 0.06% 이하; N: 0.01% 이하; Nb: 0.005~0.1%; Ti: 0.005~0.05%; Ca: 0.0005~0.005%; 그리고 Ni: 0.05~0.5%, Cr: 0.05~0.5%, Mo: 0.02~0.4% 및 V: 0.005~0.1% 중 선택된 1종 또는 2종 이상; 잔부 Fe 및 불가피한 불순물을 포함하고, 관계식 1-3을 만족하며, -20℃에서 DWTT(Drop Weight Tear Test) 연성파면율이 85% 이상이다.
PCT/KR2017/013553 2016-12-22 2017-11-24 저온인성 및 후열처리 특성이 우수한 내sour 후판 강재 및 그 제조방법 WO2018117450A1 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201780079347.1A CN110114495A (zh) 2016-12-22 2017-11-24 具有优异的低温韧性和后热处理特性的耐酸厚壁钢材及其制造方法
JP2019532675A JP6886519B2 (ja) 2016-12-22 2017-11-24 低温靭性及び後熱処理特性に優れた耐サワー厚板鋼材及びその製造方法
EP17884620.0A EP3561129A4 (en) 2016-12-22 2017-11-24 ACIDITY-RESISTANT HEAVY-ACID STEEL MATERIAL HAVING EXCELLENT LOW TEMPERATURE AND HEAT POST-TREATMENT FEATURES AND METHOD OF MANUFACTURING THE SAME
US16/471,257 US11649519B2 (en) 2016-12-22 2017-11-24 Sour-resistant heavy-wall steel plate having excellent low-temperature toughness and post-heat treatment characteristics and method for manufacturing same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0177151 2016-12-22
KR1020160177151A KR101940880B1 (ko) 2016-12-22 2016-12-22 저온인성 및 후열처리 특성이 우수한 내sour 후판 강재 및 그 제조방법

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WO2018117450A1 WO2018117450A1 (ko) 2018-06-28
WO2018117450A8 true WO2018117450A8 (ko) 2019-01-03

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US (1) US11649519B2 (ko)
EP (1) EP3561129A4 (ko)
JP (1) JP6886519B2 (ko)
KR (1) KR101940880B1 (ko)
CN (1) CN110114495A (ko)
WO (1) WO2018117450A1 (ko)

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CN110846565A (zh) * 2019-09-30 2020-02-28 邯郸钢铁集团有限责任公司 组织及性能稳定的低成本大壁厚抗酸管线钢及其生产方法
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KR102366991B1 (ko) * 2020-09-09 2022-02-25 현대제철 주식회사 저온 인성이 우수한 저항복비형 열연강재 및 그 제조 방법
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KR101657823B1 (ko) 2014-12-24 2016-09-20 주식회사 포스코 저온인성 및 수소유기균열 저항성이 우수한 강재 및 그 제조방법
KR101657827B1 (ko) * 2014-12-24 2016-09-20 주식회사 포스코 취성균열전파 저항성이 우수한 구조용 극후물 강재 및 그 제조방법
KR20160078624A (ko) * 2014-12-24 2016-07-05 주식회사 포스코 저온인성 및 강도가 우수한 강관용 열연강판 및 그 제조방법
CN104789863B (zh) * 2015-03-20 2017-01-18 宝山钢铁股份有限公司 具有良好抗应变时效性能的x80管线钢、管线管及其制造方法
CN104789866B (zh) * 2015-04-28 2017-03-08 宝山钢铁股份有限公司 630MPa级调质型低温球罐用高强高韧性钢板及其制造方法
CA3009905C (en) * 2016-01-29 2020-11-17 Jfe Steel Corporation Steel plate for high-strength and high-toughness steel pipes and method for producing steel plate
WO2017221690A1 (ja) * 2016-06-22 2017-12-28 Ｊｆｅスチール株式会社 厚肉高強度ラインパイプ用熱延鋼板、ならびに、厚肉高強度ラインパイプ用溶接鋼管およびその製造方法

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JP6886519B2 (ja) 2021-06-16
KR101940880B1 (ko) 2019-01-21
US11649519B2 (en) 2023-05-16
EP3561129A1 (en) 2019-10-30
CN110114495A (zh) 2019-08-09
US20200239977A1 (en) 2020-07-30
KR20180073385A (ko) 2018-07-02

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