EP4545666A4 - 1.3MPA or more cold-rolled steel sheet with high expansion and high hole expansion performance and manufacturing method therefor - Google Patents

1.3MPA or more cold-rolled steel sheet with high expansion and high hole expansion performance and manufacturing method therefor

Info

Publication number
EP4545666A4
EP4545666A4 EP23826445.1A EP23826445A EP4545666A4 EP 4545666 A4 EP4545666 A4 EP 4545666A4 EP 23826445 A EP23826445 A EP 23826445A EP 4545666 A4 EP4545666 A4 EP 4545666A4
Authority
EP
European Patent Office
Prior art keywords
expansion
cold
manufacturing
steel sheet
rolled steel
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
EP23826445.1A
Other languages
German (de)
French (fr)
Other versions
EP4545666A1 (en
Inventor
Peng Xue
Xiaodong Zhu
Wei Li
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.)
Baoshan Iron and Steel Co Ltd
Original Assignee
Baoshan Iron and Steel 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.)
Filing date
Publication date
Application filed by Baoshan Iron and Steel Co Ltd filed Critical Baoshan Iron and Steel Co Ltd
Publication of EP4545666A1 publication Critical patent/EP4545666A1/en
Publication of EP4545666A4 publication Critical patent/EP4545666A4/en
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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/20—Isothermal quenching, e.g. bainitic hardening
    • 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
    • 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 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
    • C21D8/0221—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
    • C21D8/0236—Cold 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
    • C22C38/02—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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C21D2211/001—Austenite
    • 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 Sheet Steel (AREA)
EP23826445.1A 2022-06-22 2023-06-20 1.3MPA or more cold-rolled steel sheet with high expansion and high hole expansion performance and manufacturing method therefor Pending EP4545666A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210711333.XA CN117305724B (en) 2022-06-22 2022-06-22 High-elongation high-reaming-performance cold-rolled steel plate with more than 1300MPa and manufacturing method thereof
PCT/CN2023/101458 WO2023246798A1 (en) 2022-06-22 2023-06-20 1,300-mpa-grade or more cold-rolled steel plate having high extension and high hole-expansion performance and manufacturing method therefor

Publications (2)

Publication Number Publication Date
EP4545666A1 EP4545666A1 (en) 2025-04-30
EP4545666A4 true EP4545666A4 (en) 2025-10-01

Family

ID=89244979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23826445.1A Pending EP4545666A4 (en) 2022-06-22 2023-06-20 1.3MPA or more cold-rolled steel sheet with high expansion and high hole expansion performance and manufacturing method therefor

Country Status (3)

Country Link
EP (1) EP4545666A4 (en)
CN (1) CN117305724B (en)
WO (1) WO2023246798A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN121204518A (en) * 2024-06-26 2025-12-26 宝山钢铁股份有限公司 A low-alloy ultra-high-strength steel with excellent drawing properties and its manufacturing method
CN121204517A (en) * 2024-06-26 2025-12-26 宝山钢铁股份有限公司 A 1300MPa grade ultra-high strength steel with low yield strength ratio and its manufacturing method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2246456A1 (en) * 2008-01-31 2010-11-03 JFE Steel Corporation High-strength steel sheet and process for production thereof
JP4947176B2 (en) * 2010-03-24 2012-06-06 Ｊｆｅスチール株式会社 Manufacturing method of ultra-high strength cold-rolled steel sheet
WO2017131056A1 (en) * 2016-01-27 2017-08-03 Ｊｆｅスチール株式会社 High-yield ratio high-strength galvanized steel sheet, and method for producing same
US20180355453A1 (en) * 2015-12-15 2018-12-13 Posco Ultra-high strength steel sheet having excellent phosphatability and hole expandability and method for manufacturing same
CN109642294A (en) * 2016-09-28 2019-04-16 杰富意钢铁株式会社 Steel plate and its manufacturing method
EP3730636A1 (en) * 2017-12-22 2020-10-28 Posco High-strength steel sheet having excellent processability and method for manufacturing same
CN114286870A (en) * 2019-09-03 2022-04-05 日本制铁株式会社 Steel plate

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2524970A1 (en) * 2011-05-18 2012-11-21 ThyssenKrupp Steel Europe AG Extremely stable steel flat product and method for its production
CN102321841B (en) 2011-10-08 2013-03-27 攀钢集团攀枝花钢铁研究院有限公司 Track shoe steel with tensile strength of up to 1300 MPa and manufacturing method thereof
CN102776438A (en) 2012-08-27 2012-11-14 内蒙古包钢钢联股份有限公司 Niobium-lanthanum microalloying Mn-B series superstrength steel plate and heat treatment technology thereof
CN104451436A (en) 2014-12-08 2015-03-25 钢铁研究总院 Bainite-martensite-austenite multi-phase wear-resistant steel plate and manufacturing method thereof
JP6278162B1 (en) * 2016-03-31 2018-02-14 Ｊｆｅスチール株式会社 Thin steel plate and plated steel plate, hot rolled steel plate manufacturing method, cold rolled full hard steel plate manufacturing method, thin steel plate manufacturing method and plated steel plate manufacturing method
CN106119694B (en) * 2016-08-24 2018-01-23 武汉钢铁有限公司 With the tensile strength >=1900MPa hot formings steel and production method of medium thin slab Direct Rolling
WO2018189950A1 (en) * 2017-04-14 2018-10-18 Ｊｆｅスチール株式会社 Steel plate and production method therefor
KR102504106B1 (en) * 2018-04-23 2023-02-28 닛폰세이테츠 가부시키가이샤 Steel member and its manufacturing method
CN109023055B (en) * 2018-08-16 2020-08-28 敬业钢铁有限公司 High-strength high-formability automobile steel plate and production process thereof
US11753693B2 (en) * 2018-09-28 2023-09-12 Posco Co., Ltd High-strength cold rolled steel sheet having high hole expansion ratio, highstrength hot-dip galvanized steel sheet, and manufacturing methods therefor
CN109576579A (en) * 2018-11-29 2019-04-05 宝山钢铁股份有限公司 It is a kind of with high hole expansibility and compared with the 980MPa grade cold-rolled steel sheet and its manufacturing method of high-elongation
CN109628846B (en) * 2018-12-20 2020-08-04 唐山钢铁集团有限责任公司 1300 MPa-grade ultrahigh-strength cold-rolled steel plate for automobiles and production method thereof
US11390932B2 (en) * 2018-12-26 2022-07-19 Jfe Steel Corporation High-strength hot-dip galvanized steel sheet and method for producing the same
CN111647732A (en) * 2020-05-11 2020-09-11 首钢集团有限公司 A kind of 1300MPa grade multiphase steel, its preparation method and its application
US20230323493A1 (en) * 2020-09-07 2023-10-12 Arcelormittal Forged part of steel and a method of manufacturing thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2246456A1 (en) * 2008-01-31 2010-11-03 JFE Steel Corporation High-strength steel sheet and process for production thereof
JP4947176B2 (en) * 2010-03-24 2012-06-06 Ｊｆｅスチール株式会社 Manufacturing method of ultra-high strength cold-rolled steel sheet
US20180355453A1 (en) * 2015-12-15 2018-12-13 Posco Ultra-high strength steel sheet having excellent phosphatability and hole expandability and method for manufacturing same
WO2017131056A1 (en) * 2016-01-27 2017-08-03 Ｊｆｅスチール株式会社 High-yield ratio high-strength galvanized steel sheet, and method for producing same
CN109642294A (en) * 2016-09-28 2019-04-16 杰富意钢铁株式会社 Steel plate and its manufacturing method
EP3730636A1 (en) * 2017-12-22 2020-10-28 Posco High-strength steel sheet having excellent processability and method for manufacturing same
CN114286870A (en) * 2019-09-03 2022-04-05 日本制铁株式会社 Steel plate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2023246798A1 *

Also Published As

Publication number Publication date
WO2023246798A1 (en) 2023-12-28
JP2025521342A (en) 2025-07-08
CN117305724B (en) 2026-05-22
EP4545666A1 (en) 2025-04-30
CN117305724A (en) 2023-12-29

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