EP4484585A4 - STEEL SHEET AND METHOD FOR THE PRODUCTION THEREOF - Google Patents

STEEL SHEET AND METHOD FOR THE PRODUCTION THEREOF

Info

Publication number
EP4484585A4
EP4484585A4 EP23803620.6A EP23803620A EP4484585A4 EP 4484585 A4 EP4484585 A4 EP 4484585A4 EP 23803620 A EP23803620 A EP 23803620A EP 4484585 A4 EP4484585 A4 EP 4484585A4
Authority
EP
European Patent Office
Prior art keywords
production
steel sheet
steel
sheet
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
EP23803620.6A
Other languages
German (de)
French (fr)
Other versions
EP4484585A1 (en
Inventor
Masaomi OKUTANI
Yusuke Terazawa
Hirofumi Ohtsubo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
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 JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP4484585A1 publication Critical patent/EP4484585A1/en
Publication of EP4484585A4 publication Critical patent/EP4484585A4/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C22C38/002—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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/08—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
    • 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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium 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
    • C22C38/32—Ferrous alloys, e.g. steel alloys containing chromium with boron
    • 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
    • C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
    • 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
    • C21D2211/004—Dispersions; Precipitations

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)
EP23803620.6A 2022-05-12 2023-05-11 STEEL SHEET AND METHOD FOR THE PRODUCTION THEREOF Pending EP4484585A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022079060 2022-05-12
PCT/JP2023/017811 WO2023219146A1 (en) 2022-05-12 2023-05-11 Steel sheet and method for manufacturing same

Publications (2)

Publication Number Publication Date
EP4484585A1 EP4484585A1 (en) 2025-01-01
EP4484585A4 true EP4484585A4 (en) 2025-07-02

Family

ID=88730290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23803620.6A Pending EP4484585A4 (en) 2022-05-12 2023-05-11 STEEL SHEET AND METHOD FOR THE PRODUCTION THEREOF

Country Status (5)

Country Link
EP (1) EP4484585A4 (en)
JP (1) JP7468800B2 (en)
KR (1) KR20240157700A (en)
CN (1) CN119095993A (en)
WO (1) WO2023219146A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2025182186A1 (en) * 2024-02-29 2025-09-04

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2813596A1 (en) * 2011-02-15 2014-12-17 JFE Steel Corporation High tensile steel plate having excellent low-temperature toughness in weld heat-affected zones, and method for producing same
EP2975148A1 (en) * 2013-03-12 2016-01-20 JFE Steel Corporation Thick steel sheet having excellent ctod properties in multilayer welded joints, and manufacturing method for thick steel sheet
EP3128033A1 (en) * 2014-03-31 2017-02-08 JFE Steel Corporation High-tensile-strength steel plate and process for producing same
EP3633057A1 (en) * 2017-05-22 2020-04-08 JFE Steel Corporation Thick steel plate and method for manufacturing same
WO2021054345A1 (en) * 2019-09-20 2021-03-25 Ｊｆｅスチール株式会社 Thick steel sheet, and method for producing same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041929Y2 (en) 1981-09-21 1985-12-21 株式会社吉田製作所 Fixed stand for dental cutting tools
JPS60184663A (en) 1984-02-29 1985-09-20 Kawasaki Steel Corp High-tensile steel for low temperature service for welding with large heat input
JPS61253344A (en) 1985-05-01 1986-11-11 Kawasaki Steel Corp Steel plate for high heat input welding and its manufacture
JP3045856B2 (en) 1991-11-13 2000-05-29 川崎製鉄株式会社 Method for producing high toughness Cu-containing high tensile steel
KR101732997B1 (en) 2013-03-26 2017-05-08 제이에프이 스틸 가부시키가이샤 High strength thick steel plate for high heat input welding with excellent brittle crack arrestability and manufacturing method therefor
JP7243826B2 (en) 2019-06-17 2023-03-22 日本製鉄株式会社 steel plate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2813596A1 (en) * 2011-02-15 2014-12-17 JFE Steel Corporation High tensile steel plate having excellent low-temperature toughness in weld heat-affected zones, and method for producing same
EP2975148A1 (en) * 2013-03-12 2016-01-20 JFE Steel Corporation Thick steel sheet having excellent ctod properties in multilayer welded joints, and manufacturing method for thick steel sheet
EP3128033A1 (en) * 2014-03-31 2017-02-08 JFE Steel Corporation High-tensile-strength steel plate and process for producing same
EP3633057A1 (en) * 2017-05-22 2020-04-08 JFE Steel Corporation Thick steel plate and method for manufacturing same
WO2021054345A1 (en) * 2019-09-20 2021-03-25 Ｊｆｅスチール株式会社 Thick steel sheet, and method for producing same
EP4032993A1 (en) * 2019-09-20 2022-07-27 JFE Steel Corporation Thick steel sheet, and method for producing same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2023219146A1 *

Also Published As

Publication number Publication date
JP7468800B2 (en) 2024-04-16
CN119095993A (en) 2024-12-06
EP4484585A1 (en) 2025-01-01
KR20240157700A (en) 2024-11-01
WO2023219146A1 (en) 2023-11-16
JPWO2023219146A1 (en) 2023-11-16

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A4 Supplementary search report drawn up and despatched

Effective date: 20250528

RIC1 Information provided on ipc code assigned before grant

Ipc: C22C 38/54 20060101ALI20250523BHEP

Ipc: C22C 38/44 20060101ALI20250523BHEP

Ipc: C22C 38/32 20060101ALI20250523BHEP

Ipc: C22C 38/26 20060101ALI20250523BHEP

Ipc: C22C 38/22 20060101ALI20250523BHEP

Ipc: C22C 38/18 20060101ALI20250523BHEP

Ipc: C22C 38/16 20060101ALI20250523BHEP

Ipc: C22C 38/14 20060101ALI20250523BHEP

Ipc: C22C 38/12 20060101ALI20250523BHEP

Ipc: C22C 38/08 20060101ALI20250523BHEP

Ipc: C22C 38/04 20060101ALI20250523BHEP

Ipc: C22C 38/02 20060101ALI20250523BHEP

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