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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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Publication number
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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WIPO (PCT)
Prior art keywords
450mpa
heavy
steel plate
tensile strength
excellent resistance
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2017/013550
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English (en)
French (fr)
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WO2018117449A1 (ko
Inventor
고성웅
박연정
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Posco Holdings Inc
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Posco Co Ltd
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.)
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Publication date
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Priority to JP2019533605A priority Critical patent/JP2020503445A/ja
Priority to US16/471,268 priority patent/US20190382865A1/en
Priority to CN201780079763.1A priority patent/CN110114490A/zh
Priority to EP17882598.0A priority patent/EP3561106A1/en
Publication of WO2018117449A1 publication Critical patent/WO2018117449A1/ko
Publication of WO2018117449A8 publication Critical patent/WO2018117449A8/ko
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • 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
    • 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
    • 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
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • 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
    • 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
    • C21D2211/005—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 Ceased WO2018117449A1 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
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
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
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
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

Applications Claiming Priority (2)

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

Publications (2)

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

Family

ID=62626682

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

Country Status (6)

Country Link
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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* Cited by examiner, † Cited by third party
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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
EP1533392B1 (en) * 2002-09-04 2017-08-02 JFE Steel Corporation Steel product for high heat input welding and method for production thereof
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
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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

Also Published As

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

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