KR20250123167A - 저항복비형 극후 강판 및 그 제조 방법 - Google Patents

저항복비형 극후 강판 및 그 제조 방법

Info

Publication number
KR20250123167A
KR20250123167A KR1020257023133A KR20257023133A KR20250123167A KR 20250123167 A KR20250123167 A KR 20250123167A KR 1020257023133 A KR1020257023133 A KR 1020257023133A KR 20257023133 A KR20257023133 A KR 20257023133A KR 20250123167 A KR20250123167 A KR 20250123167A
Authority
KR
South Korea
Prior art keywords
less
steel plate
cooling
content
ceq
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.)
Pending
Application number
KR1020257023133A
Other languages
English (en)
Korean (ko)
Inventor
유스케 데라자와
Original Assignee
제이에프이 스틸 가부시키가이샤
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.)
Filing date
Publication date
Application filed by 제이에프이 스틸 가부시키가이샤 filed Critical 제이에프이 스틸 가부시키가이샤
Publication of KR20250123167A publication Critical patent/KR20250123167A/ko
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties of ferrous metals or ferrous alloys 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 of ferrous metals or ferrous alloys 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
    • 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
    • C22C38/12—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
    • C22C38/18—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
    • C21D2211/008—Martensite

Landscapes

  • 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)
KR1020257023133A 2023-01-30 2023-10-31 저항복비형 극후 강판 및 그 제조 방법 Pending KR20250123167A (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2023012315 2023-01-30
JPJP-P-2023-012315 2023-01-30
JP2023012317 2023-01-30
JPJP-P-2023-012317 2023-01-30
PCT/JP2023/039335 WO2024161737A1 (ja) 2023-01-30 2023-10-31 低降伏比型極厚鋼板およびその製造方法

Publications (1)

Publication Number Publication Date
KR20250123167A true KR20250123167A (ko) 2025-08-14

Family

ID=92146084

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020257023133A Pending KR20250123167A (ko) 2023-01-30 2023-10-31 저항복비형 극후 강판 및 그 제조 방법

Country Status (4)

Country Link
JP (1) JP7786550B2 (https=)
KR (1) KR20250123167A (https=)
CN (1) CN120569501A (https=)
WO (1) WO2024161737A1 (https=)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008266735A (ja) 2007-04-20 2008-11-06 Kobe Steel Ltd 溶接熱影響部および母材の低温靭性に優れた低降伏比高張力鋼板並びにその製造方法
JP2009127065A (ja) 2007-11-20 2009-06-11 Nippon Steel Corp 母材低温靭性およびｈａｚ低温靭性に優れた低降伏比高張力鋼板とその製造方法
JP2010090406A (ja) 2008-10-03 2010-04-22 Sumitomo Metal Ind Ltd 低降伏比低温用鋼、およびその製造方法
JP2010280932A (ja) 2009-06-03 2010-12-16 Sumitomo Metal Ind Ltd 低降伏比鋼材およびその製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04180521A (ja) * 1990-11-14 1992-06-26 Kobe Steel Ltd 高降伏強度高靭性厚肉高張力鋼板の製造方法
WO2015022729A1 (ja) 2013-08-13 2015-02-19 新日鐵住金株式会社 鋼板
JP7243826B2 (ja) 2019-06-17 2023-03-22 日本製鉄株式会社 鋼板
WO2021156925A1 (ja) 2020-02-03 2021-08-12 日本製鉄株式会社 厚鋼板
JP7184210B2 (ja) * 2020-03-13 2022-12-06 日本製鉄株式会社 風力発電施設用鋼板およびその製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008266735A (ja) 2007-04-20 2008-11-06 Kobe Steel Ltd 溶接熱影響部および母材の低温靭性に優れた低降伏比高張力鋼板並びにその製造方法
JP2009127065A (ja) 2007-11-20 2009-06-11 Nippon Steel Corp 母材低温靭性およびｈａｚ低温靭性に優れた低降伏比高張力鋼板とその製造方法
JP2010090406A (ja) 2008-10-03 2010-04-22 Sumitomo Metal Ind Ltd 低降伏比低温用鋼、およびその製造方法
JP2010280932A (ja) 2009-06-03 2010-12-16 Sumitomo Metal Ind Ltd 低降伏比鋼材およびその製造方法

Also Published As

Publication number Publication date
JPWO2024161737A1 (https=) 2024-08-08
WO2024161737A1 (ja) 2024-08-08
JP7786550B2 (ja) 2025-12-16
CN120569501A (zh) 2025-08-29

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