WO2011081350A3 - 용접 후 열처리 저항성이 우수한 고강도 강판 및 그 제조방법 - Google Patents

용접 후 열처리 저항성이 우수한 고강도 강판 및 그 제조방법 Download PDF

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Publication number
WO2011081350A3
WO2011081350A3 PCT/KR2010/009225 KR2010009225W WO2011081350A3 WO 2011081350 A3 WO2011081350 A3 WO 2011081350A3 KR 2010009225 W KR2010009225 W KR 2010009225W WO 2011081350 A3 WO2011081350 A3 WO 2011081350A3
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WIPO (PCT)
Prior art keywords
steel sheet
excellent resistance
heat treatment
weld heat
high strength
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PCT/KR2010/009225
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English (en)
French (fr)
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WO2011081350A2 (ko
Inventor
홍순택
장성호
노윤조
박재현
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주식회사 포스코
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=44226971&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2011081350(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to EP10841182.8A priority Critical patent/EP2520680B1/en
Priority to JP2012546997A priority patent/JP5657026B2/ja
Priority to CN201080064894.0A priority patent/CN102782169B/zh
Publication of WO2011081350A2 publication Critical patent/WO2011081350A2/ko
Publication of WO2011081350A3 publication Critical patent/WO2011081350A3/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
    • C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with 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
    • 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
    • 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
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • 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
    • 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
    • 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
    • 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
    • C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints

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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 장시간의 압연 후 열처리(PWHT, Post Weld Heat Treatment, PWHT)를 행해도 강도 및 인성의 저하가 발생하지 않는 PWHT 저항성이 우수한 강판에 관한 것으로서, 중량%로, C: 0.1~0.3%, Si: 0.15~0.50%, Mn: 0.6~1.2%, P: 0.035%이하, S: 0.020%이하, Al: 0.001~0.05%, Cr: 0.01~0.35%, Mo: 0.005~0.2%, V: 0.005~0.05%, Nb: 0.001~0.05%, Ti: 0.001~0.05%, Ca: 0.0005~0.005%, Ni: 0.05~0.5%를 포함하고, Cu: 0.005~0.5%, Co: 0.005~0.2% 및 W; 0.005~0.2%로 이루어진 그룹에서 선택된 1종 이상, 나머지는 Fe 및 불가피한 불순물을 포함하여 이루어지는 용접 후 열처리 저항성이 우수한 고강도 강판 및 그 제조방법에 관한 것이다.
PCT/KR2010/009225 2009-12-28 2010-12-22 용접 후 열처리 저항성이 우수한 고강도 강판 및 그 제조방법 WO2011081350A2 (ko)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP10841182.8A EP2520680B1 (en) 2009-12-28 2010-12-22 High strength steel sheet having excellent resistance to post weld heat treatment and method for manufacturing same
JP2012546997A JP5657026B2 (ja) 2009-12-28 2010-12-22 溶接後熱処理抵抗性に優れた高強度鋼板及びその製造方法
CN201080064894.0A CN102782169B (zh) 2009-12-28 2010-12-22 对焊后热处理具有优异抗性的高强度钢板及其制备方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2009-0132129 2009-12-28
KR1020090132129A KR101322067B1 (ko) 2009-12-28 2009-12-28 용접 후 열처리 저항성이 우수한 고강도 강판 및 그 제조방법

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WO2011081350A2 WO2011081350A2 (ko) 2011-07-07
WO2011081350A3 true WO2011081350A3 (ko) 2011-11-17

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PCT/KR2010/009225 WO2011081350A2 (ko) 2009-12-28 2010-12-22 용접 후 열처리 저항성이 우수한 고강도 강판 및 그 제조방법

Country Status (5)

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EP (1) EP2520680B1 (ko)
JP (1) JP5657026B2 (ko)
KR (1) KR101322067B1 (ko)
CN (1) CN102782169B (ko)
WO (1) WO2011081350A2 (ko)

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KR101417231B1 (ko) * 2011-12-28 2014-07-08 주식회사 포스코 저온인성 및 인장특성이 우수한 압력용기용 극후강판 및 그 제조 방법
JP6201376B2 (ja) * 2013-04-01 2017-09-27 Ｊｆｅスチール株式会社 耐食性に優れる原油タンク用鋼材および原油タンク
CN104195465A (zh) * 2014-07-24 2014-12-10 安徽广源科技发展有限公司 一种耐低温耐腐蚀用合金钢及其制造方法
CN104109801B (zh) * 2014-07-30 2016-04-27 宝山钢铁股份有限公司 高韧性、抗pwht软化脆化的钢板及其制造方法
KR101758497B1 (ko) * 2015-12-22 2017-07-27 주식회사 포스코 Pwht 저항성이 우수한 저온 압력용기용 강판 및 그 제조 방법
CN105671436B (zh) * 2016-02-05 2017-10-03 山东钢铁股份有限公司 抗高温pwht软化的低焊接裂纹敏感系数原油储罐用高强韧性钢板及其制造方法
KR101917453B1 (ko) * 2016-12-22 2018-11-09 주식회사 포스코 극저온 충격인성이 우수한 후강판 및 이의 제조방법
KR101899691B1 (ko) * 2016-12-23 2018-10-31 주식회사 포스코 수소유기균열 저항성이 우수한 압력용기용 강재 및 그 제조방법
KR101999024B1 (ko) 2017-12-26 2019-07-10 주식회사 포스코 수소유기균열 저항성이 우수한 강재 및 그 제조방법
KR102280641B1 (ko) * 2019-10-22 2021-07-22 주식회사 포스코 고온 용접후열처리 저항성이 우수한 압력용기용 강판 및 그 제조방법
CN112813353B (zh) * 2021-01-29 2022-05-27 日钢营口中板有限公司 一种超高温spwht高韧性正火容器用钢及制造方法
US11788951B2 (en) 2021-03-19 2023-10-17 Saudi Arabian Oil Company Testing method to evaluate cold forming effects on carbon steel susceptibility to hydrogen induced cracking (HIC)
US11656169B2 (en) 2021-03-19 2023-05-23 Saudi Arabian Oil Company Development of control samples to enhance the accuracy of HIC testing

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JPS6179745A (ja) * 1984-09-28 1986-04-23 Nippon Steel Corp 溶接継手熱影響部靭性のすぐれた鋼材の製造法
JPH08283905A (ja) * 1995-02-16 1996-10-29 Nippon Steel Corp 疲労強度が優れた溶接継手
JP2004027355A (ja) * 2001-11-14 2004-01-29 Sumitomo Metal Ind Ltd 疲労き裂進展抵抗特性に優れた鋼材とその製造方法
JP2004204344A (ja) * 2002-06-19 2004-07-22 Nippon Steel Corp 原油油槽用鋼およびその製造方法、原油油槽およびその防食方法

Also Published As

Publication number Publication date
JP5657026B2 (ja) 2015-01-21
EP2520680A2 (en) 2012-11-07
KR101322067B1 (ko) 2013-10-25
JP2013515861A (ja) 2013-05-09
WO2011081350A2 (ko) 2011-07-07
EP2520680B1 (en) 2016-10-26
CN102782169B (zh) 2014-11-19
EP2520680A4 (en) 2014-11-19
KR20110075630A (ko) 2011-07-06
CN102782169A (zh) 2012-11-14

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