KR102164107B1 - 저온파괴인성 및 연신율이 우수한 고강도 강판 및 그 제조방법 - Google Patents

저온파괴인성 및 연신율이 우수한 고강도 강판 및 그 제조방법 Download PDF

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KR102164107B1
KR102164107B1 KR1020180151565A KR20180151565A KR102164107B1 KR 102164107 B1 KR102164107 B1 KR 102164107B1 KR 1020180151565 A KR1020180151565 A KR 1020180151565A KR 20180151565 A KR20180151565 A KR 20180151565A KR 102164107 B1 KR102164107 B1 KR 102164107B1
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KR
South Korea
Prior art keywords
steel sheet
less
elongation
temperature
rolling
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KR1020180151565A
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English (en)
Korean (ko)
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KR20200066394A (ko
Inventor
유장용
배무종
박연정
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주식회사 포스코
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Priority to KR1020180151565A priority Critical patent/KR102164107B1/ko
Priority to RU2021118464A priority patent/RU2771151C1/ru
Priority to CN201980078794.4A priority patent/CN113166904B/zh
Priority to JP2021530865A priority patent/JP7372325B2/ja
Priority to EP19889727.4A priority patent/EP3889305B1/en
Priority to CA3120271A priority patent/CA3120271C/en
Priority to PCT/KR2019/016785 priority patent/WO2020111891A1/ko
Publication of KR20200066394A publication Critical patent/KR20200066394A/ko
Application granted granted Critical
Publication of KR102164107B1 publication Critical patent/KR102164107B1/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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/02—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
    • C22C38/48—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
    • 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

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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)
KR1020180151565A 2018-11-30 2018-11-30 저온파괴인성 및 연신율이 우수한 고강도 강판 및 그 제조방법 KR102164107B1 (ko)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR1020180151565A KR102164107B1 (ko) 2018-11-30 2018-11-30 저온파괴인성 및 연신율이 우수한 고강도 강판 및 그 제조방법
RU2021118464A RU2771151C1 (ru) 2018-11-30 2019-11-29 Лист высокопрочной стали, имеющий превосходные низкотемпературную вязкость разрушения и коэффициент удлинения, и способ его изготовления
CN201980078794.4A CN113166904B (zh) 2018-11-30 2019-11-29 具有优异的低温断裂韧性和延伸率的高强度钢板及其制造方法
JP2021530865A JP7372325B2 (ja) 2018-11-30 2019-11-29 低温破壊靭性及び伸びに優れた高強度鋼板、並びにその製造方法
EP19889727.4A EP3889305B1 (en) 2018-11-30 2019-11-29 High-strength steel plate having excellent low-temperature fracture toughness and elongation ratio, and manufacturing method therefor
CA3120271A CA3120271C (en) 2018-11-30 2019-11-29 High-strength steel plate having excellent low-temperature fracture toughness and elongation ratio, and manufacturing method therefor
PCT/KR2019/016785 WO2020111891A1 (ko) 2018-11-30 2019-11-29 저온파괴인성 및 연신율이 우수한 고강도 강판 및 그 제조방법

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020180151565A KR102164107B1 (ko) 2018-11-30 2018-11-30 저온파괴인성 및 연신율이 우수한 고강도 강판 및 그 제조방법

Publications (2)

Publication Number Publication Date
KR20200066394A KR20200066394A (ko) 2020-06-10
KR102164107B1 true KR102164107B1 (ko) 2020-10-13

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KR1020180151565A KR102164107B1 (ko) 2018-11-30 2018-11-30 저온파괴인성 및 연신율이 우수한 고강도 강판 및 그 제조방법

Country Status (7)

Country Link
EP (1) EP3889305B1 (ja)
JP (1) JP7372325B2 (ja)
KR (1) KR102164107B1 (ja)
CN (1) CN113166904B (ja)
CA (1) CA3120271C (ja)
RU (1) RU2771151C1 (ja)
WO (1) WO2020111891A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112611656B (zh) * 2020-12-14 2024-03-08 中南大学 一种航空航天用铝合金低温延伸率的精确测量方法
KR102393906B1 (ko) * 2020-12-18 2022-05-03 주식회사 포스코 Dwtt 천이온도를 예측하는 방법

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101889182B1 (ko) 2016-12-20 2018-08-16 주식회사 포스코 길이방향 균일 연신율 및 저온 인성이 우수한 용접강관용 강재, 이의 제조방법 및 이를 이용한 강관

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US6264760B1 (en) * 1997-07-28 2001-07-24 Exxonmobil Upstream Research Company Ultra-high strength, weldable steels with excellent ultra-low temperature toughness
JP3968011B2 (ja) * 2002-05-27 2007-08-29 新日本製鐵株式会社 低温靱性および溶接熱影響部靱性に優れた高強度鋼とその製造方法および高強度鋼管の製造方法
JP4823841B2 (ja) * 2006-10-12 2011-11-24 新日本製鐵株式会社 音響異方性が小さく溶接性に優れる引張強さ５７０ＭＰａ級以上の超大入熱溶接用高張力鋼板およびその製造方法
US8647564B2 (en) * 2007-12-04 2014-02-11 Posco High-strength steel sheet with excellent low temperature toughness and manufacturing thereof
KR100951296B1 (ko) * 2007-12-04 2010-04-02 주식회사 포스코 저온인성이 우수한 고강도 라인파이프용 강판 및 그제조방법
RU2518830C1 (ru) * 2010-06-30 2014-06-10 Ниппон Стил Энд Сумитомо Метал Корпорейшн Горячекатаный стальной лист и способ его изготовления
KR101253958B1 (ko) * 2010-12-27 2013-04-16 주식회사 포스코 우수한 파괴전파 저항성 및 저항복비 특성을 갖는 라인파이프용 강판 및 그 제조방법
KR101360467B1 (ko) 2011-12-23 2014-02-10 주식회사 포스코 저온 파괴인성 및 균일연신율이 우수한 라인파이프용 강판 및 그 제조방법
KR101439685B1 (ko) * 2012-12-26 2014-09-12 주식회사 포스코 균일연신율 및 저온파괴인성이 우수한 라인파이프용 강판 및 그의 제조방법
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Also Published As

Publication number Publication date
EP3889305A1 (en) 2021-10-06
CN113166904A (zh) 2021-07-23
KR20200066394A (ko) 2020-06-10
JP7372325B2 (ja) 2023-10-31
CA3120271C (en) 2023-09-12
CN113166904B (zh) 2023-10-27
EP3889305A4 (en) 2021-10-06
EP3889305C0 (en) 2024-04-10
EP3889305B1 (en) 2024-04-10
WO2020111891A1 (ko) 2020-06-04
RU2771151C1 (ru) 2022-04-27
JP2022510935A (ja) 2022-01-28
CA3120271A1 (en) 2020-06-04

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