WO2017104969A8 - 용접 후 열처리 저항성이 우수한 압력용기 강판 및 그 제조방법 - Google Patents

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

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Publication number
WO2017104969A8
WO2017104969A8 PCT/KR2016/012562 KR2016012562W WO2017104969A8 WO 2017104969 A8 WO2017104969 A8 WO 2017104969A8 KR 2016012562 W KR2016012562 W KR 2016012562W WO 2017104969 A8 WO2017104969 A8 WO 2017104969A8
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steel plate
pressure vessel
heat treatment
manufacturing
method therefor
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PCT/KR2016/012562
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English (en)
French (fr)
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WO2017104969A1 (ko
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홍순택
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주식회사 포스코
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Priority to CN201680074703.6A priority Critical patent/CN108368591B/zh
Priority to EP16875911.6A priority patent/EP3392365B1/en
Priority to JP2018530843A priority patent/JP6688391B2/ja
Priority to US16/061,840 priority patent/US10829830B2/en
Publication of WO2017104969A1 publication Critical patent/WO2017104969A1/ko
Publication of WO2017104969A8 publication Critical patent/WO2017104969A8/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
    • 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
    • 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
    • C21D6/007—Heat treatment of ferrous alloys containing Co
    • 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
    • C21D8/0273—Final recrystallisation annealing
    • 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
    • C22C38/02—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
    • C22C38/42—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
    • C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
    • 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
    • C21D2211/008—Martensite
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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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)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

본 발명은 장시간의 용접 후 열처리(PWHT, Post Weld Heat Treatment, PWHT)를 행해도 강도 및 인성의 저하가 발생하지 않는 PWHT 저항성이 우수한 발전소의 보일러, 압력용기 등 350~600℃ 정도의 중고온 압력용기강판에 관한 것으로서, 중량%로 C:0.05~0.17%, Si:0.50~1.00%, Mn:0.3~0.8%, Cr:1.0~1.5%, Mo:0.3~1.0%, Ni:0.003~0.30%, Cu:0.003~0.30%, Sol.Al:0.005~0.06%, P:0.015%이하, S:0.020%이하를 포함하고, Nb: 0.002~0.025%, V: 0.002 ~ 0.03% 및 Co: 0.002~0.15% 중 선택된 2종 이상의 원소를 추가로 포함하며, 나머지는 Fe 및 불가피한 불순물을 포함하고, 강판의 중심부 미세조직이 20 면적% 이상의 템퍼드 마르텐사이트와 잔부 베이나이트의 혼합조직으로 이루어진 PWHT저항성이 우수한 압력용기강판 및 그 제조방법에 관한 것이다.
PCT/KR2016/012562 2015-12-17 2016-11-03 용접 후 열처리 저항성이 우수한 압력용기 강판 및 그 제조방법 WO2017104969A1 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201680074703.6A CN108368591B (zh) 2015-12-17 2016-11-03 具有优异的焊后热处理耐性的压力容器钢板及其制造方法
EP16875911.6A EP3392365B1 (en) 2015-12-17 2016-11-03 Pressure vessel steel sheet having excellent post weld heat treatment resistance, and manufacturing method therefor
JP2018530843A JP6688391B2 (ja) 2015-12-17 2016-11-03 溶接後熱処理抵抗性に優れた圧力容器用鋼板及びその製造方法
US16/061,840 US10829830B2 (en) 2015-12-17 2016-11-03 Pressure vessel steel plate having excellent post weld heat treatment resistance, and manufacturing method therefor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020150181285A KR101778398B1 (ko) 2015-12-17 2015-12-17 용접 후 열처리 저항성이 우수한 압력용기 강판 및 그 제조방법
KR10-2015-0181285 2015-12-17

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WO2017104969A1 WO2017104969A1 (ko) 2017-06-22
WO2017104969A8 true WO2017104969A8 (ko) 2017-12-21

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US (1) US10829830B2 (ko)
EP (1) EP3392365B1 (ko)
JP (1) JP6688391B2 (ko)
KR (1) KR101778398B1 (ko)
CN (1) CN108368591B (ko)
SA (1) SA518391749B1 (ko)
WO (1) WO2017104969A1 (ko)

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KR101917444B1 (ko) * 2016-12-20 2018-11-09 주식회사 포스코 고온 템퍼링 열처리 및 용접 후 열처리 저항성이 우수한 압력용기용 강재 및 이의 제조방법
KR101998991B1 (ko) * 2017-12-15 2019-07-10 주식회사 포스코 인장강도 및 저온충격인성이 우수한 압력용기용 강판 및 그 제조방법
KR102280641B1 (ko) * 2019-10-22 2021-07-22 주식회사 포스코 고온 용접후열처리 저항성이 우수한 압력용기용 강판 및 그 제조방법
CN112143982A (zh) * 2020-08-25 2020-12-29 江阴兴澄特种钢铁有限公司 压力容器封头用CrMo钢板热成型的模拟热处理工艺
KR102443670B1 (ko) * 2020-12-16 2022-09-20 주식회사 포스코 고온 pwht 저항성이 우수한 압력용기용 강판 및 그 제조방법
CN114317922A (zh) * 2021-12-30 2022-04-12 南阳汉冶特钢有限公司 一种汽包板13MnNiMoR热循环过程保证力学性能稳定的控制方法

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Publication number Publication date
KR101778398B1 (ko) 2017-09-14
US20180371567A1 (en) 2018-12-27
EP3392365A1 (en) 2018-10-24
WO2017104969A1 (ko) 2017-06-22
EP3392365B1 (en) 2020-05-06
JP2019504194A (ja) 2019-02-14
SA518391749B1 (ar) 2022-08-23
JP6688391B2 (ja) 2020-04-28
KR20170073015A (ko) 2017-06-28
EP3392365A4 (en) 2018-10-24
US10829830B2 (en) 2020-11-10
CN108368591A (zh) 2018-08-03
CN108368591B (zh) 2020-07-28

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