WO2018117449A8 - 수소유기균열 저항성이 우수한 인장강도 450mpa급 후육 강재 및 그 제조방법 - Google Patents

수소유기균열 저항성이 우수한 인장강도 450mpa급 후육 강재 및 그 제조방법 Download PDF

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WO2018117449A8
WO2018117449A8 PCT/KR2017/013550 KR2017013550W WO2018117449A8 WO 2018117449 A8 WO2018117449 A8 WO 2018117449A8 KR 2017013550 W KR2017013550 W KR 2017013550W WO 2018117449 A8 WO2018117449 A8 WO 2018117449A8
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heavy
steel plate
450mpa
wall steel
tensile strength
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PCT/KR2017/013550
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English (en)
French (fr)
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WO2018117449A1 (ko
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고성웅
박연정
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주식회사 포스코
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Priority to EP17882598.0A priority Critical patent/EP3561106A1/en
Priority to CN201780079763.1A priority patent/CN110114490A/zh
Priority to US16/471,268 priority patent/US20190382865A1/en
Priority to JP2019533605A priority patent/JP2020503445A/ja
Publication of WO2018117449A1 publication Critical patent/WO2018117449A1/ko
Publication of WO2018117449A8 publication Critical patent/WO2018117449A8/ko

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    • 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
    • C21D1/26—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
    • C21D6/004—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
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    • 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
    • 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
    • C22C38/002—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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
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    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • C—CHEMISTRY; METALLURGY
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    • 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
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    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • C—CHEMISTRY; METALLURGY
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    • 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
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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    • 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
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    • 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
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    • 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
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    • 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
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    • 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
    • C21D2211/005—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)
  • 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)

Abstract

수소유기균열 저항성이 우수한 인장강도 450MPa급 후육 강재 및 그 제조방법이 제공된다. 본 발명의 후육 강재는, 중량%로, C: 0.03~0.06%, Si: 0.2~0.4%, Mn: 1.0~1.6%, P: 0.03% 이하, S: 0.003% 이하, Al: 0.06% 이하, N: 0.01% 이하, Cu: 0.05~0.4%, Ni: 0.05~0.5%, Ca: 0.0005~0.003%, 잔부 Fe 및 불가피한 불순물을 포함하고, 두께가 40mm 이상이다.
PCT/KR2017/013550 2016-12-22 2017-11-24 수소유기균열 저항성이 우수한 인장강도 450mpa급 후육 강재 및 그 제조방법 WO2018117449A1 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP17882598.0A EP3561106A1 (en) 2016-12-22 2017-11-24 Heavy-walled steel plate having 450mpa-grade tensile strength and excellent resistance to hydrogen induced cracking and method for manufacturing same
CN201780079763.1A CN110114490A (zh) 2016-12-22 2017-11-24 具有450MPa级抗拉强度和优异的抗氢致开裂性的厚壁钢板及其制造方法
US16/471,268 US20190382865A1 (en) 2016-12-22 2017-11-24 Heavy-wall steel plate having 450mpa-grade tensile strength and excellent resistance to hydrogen induced cracking and method for manufacturing same
JP2019533605A JP2020503445A (ja) 2016-12-22 2017-11-24 耐水素誘起割れ性に優れた引張強度４５０ＭＰａ級の厚肉鋼材及びその製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0176896 2016-12-22
KR1020160176896A KR101889189B1 (ko) 2016-12-22 2016-12-22 수소유기균열 저항성이 우수한 인장강도 450MPa급 후육 강재 및 그 제조방법

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WO2018117449A1 WO2018117449A1 (ko) 2018-06-28
WO2018117449A8 true WO2018117449A8 (ko) 2019-01-03

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PCT/KR2017/013550 WO2018117449A1 (ko) 2016-12-22 2017-11-24 수소유기균열 저항성이 우수한 인장강도 450mpa급 후육 강재 및 그 제조방법

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US (1) US20190382865A1 (ko)
EP (1) EP3561106A1 (ko)
JP (1) JP2020503445A (ko)
KR (1) KR101889189B1 (ko)
CN (1) CN110114490A (ko)
WO (1) WO2018117449A1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114737027B (zh) * 2022-04-15 2024-02-06 首钢集团有限公司 抗氢致开裂性能优异的345MPa级容器钢及其制备方法

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JPH075968B2 (ja) * 1990-02-13 1995-01-25 新日本製鐵株式会社 耐水素誘起割れ性、耐硫化物応力腐食割れ性および低温靭性に優れた鋼板の製造方法
JP4123597B2 (ja) * 1998-09-30 2008-07-23 住友金属工業株式会社 強度と靱性に優れた鋼材の製造法
JP3633515B2 (ja) * 2001-06-12 2005-03-30 住友金属工業株式会社 耐水素誘起割れ性に優れた熱延鋼板およびその製造方法
JP3758581B2 (ja) * 2002-02-04 2006-03-22 住友金属工業株式会社 低炭素快削鋼
KR100928796B1 (ko) 2002-09-02 2009-11-25 주식회사 포스코 인성이 우수한 인장강도 600ＭＰａ급 압력용기용 강의제조방법
KR100622888B1 (ko) * 2002-09-04 2006-09-14 제이에프이 스틸 가부시키가이샤 대입열용접용 강재 및 그 제조방법
CN100420758C (zh) * 2002-10-01 2008-09-24 住友金属工业株式会社 具有优异抗氢致开裂性的高强度无缝钢管及其制备方法
JP4725437B2 (ja) * 2006-06-30 2011-07-13 住友金属工業株式会社 厚鋼板用連続鋳造鋳片及びその製造方法並びに厚鋼板
KR100833070B1 (ko) 2006-12-13 2008-05-27 주식회사 포스코 내ｈｉｃ특성이 우수한 인장강도 500㎫급 압력용기용 강판및 그 제조 방법
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KR101271954B1 (ko) * 2009-11-30 2013-06-07 주식회사 포스코 저온인성 및 수소유기균열 저항성이 우수한 압력용기용 강판 및 그 제조방법
JP5853661B2 (ja) * 2011-12-15 2016-02-09 Ｊｆｅスチール株式会社 高強度耐サワーラインパイプ用鋼板、その素材及び高強度耐サワーラインパイプ用鋼板の製造方法
EP2832879B1 (en) * 2012-03-30 2019-11-20 Nippon Steel Corporation High-strength steel pipe for line pipe having excellent hydrogen-induced cracking resistance, high-strength steel plate for line pipe using same, and method for manufacturing same
KR20140002256A (ko) * 2012-06-28 2014-01-08 현대제철 주식회사 비조질강 및 그 제조 방법
JP5928405B2 (ja) * 2013-05-09 2016-06-01 Ｊｆｅスチール株式会社 耐水素誘起割れ性に優れた調質鋼板及びその製造方法
CN103276293A (zh) * 2013-06-07 2013-09-04 南京钢铁股份有限公司 一种优异抗氢致开裂性管线钢板的生产方法
KR20160078844A (ko) * 2014-12-24 2016-07-05 주식회사 포스코 수소유기균열 저항성이 우수한 후판 강재 및 그 제조방법

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Publication number Publication date
WO2018117449A1 (ko) 2018-06-28
CN110114490A (zh) 2019-08-09
KR101889189B1 (ko) 2018-08-16
KR20180073256A (ko) 2018-07-02
EP3561106A4 (en) 2019-10-30
US20190382865A1 (en) 2019-12-19
EP3561106A1 (en) 2019-10-30
JP2020503445A (ja) 2020-01-30

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