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MX2017011825A - High-strength cold-rolled steel sheet and method for manufacturing same. - Google Patents

High-strength cold-rolled steel sheet and method for manufacturing same.

Info

Publication number
MX2017011825A
MX2017011825A MX2017011825A MX2017011825A MX2017011825A MX 2017011825 A MX2017011825 A MX 2017011825A MX 2017011825 A MX2017011825 A MX 2017011825A MX 2017011825 A MX2017011825 A MX 2017011825A MX 2017011825 A MX2017011825 A MX 2017011825A
Authority
MX
Mexico
Prior art keywords
less
steel sheet
rolled steel
manufacturing same
strength cold
Prior art date
Application number
MX2017011825A
Other languages
Spanish (es)
Inventor
Hasegawa Kohei
Funakawa Yoshimasa
Takashima Katsutoshi
Yoshioka Shimpei
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 MX2017011825A publication Critical patent/MX2017011825A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/46Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/001Heat treatment of ferrous alloys containing Ni
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/002Heat treatment of ferrous alloys containing Cr
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/005Heat treatment of ferrous alloys containing Mn
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D6/00Heat treatment of ferrous alloys
    • C21D6/008Heat treatment of ferrous alloys containing Si
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/001Ferrous alloys, e.g. steel alloys containing N
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/002Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/005Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/008Ferrous alloys, e.g. steel alloys containing tin
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/06Ferrous alloys, e.g. steel alloys containing aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/08Ferrous alloys, e.g. steel alloys containing nickel
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/10Ferrous alloys, e.g. steel alloys containing cobalt
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/12Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/14Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/16Ferrous alloys, e.g. steel alloys containing copper
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/60Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08Iron or steel
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08Iron or steel
    • C23G1/081Iron or steel solutions containing H2SO4
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/001Austenite
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/005Ferrite
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D2211/00Microstructure comprising significant phases
    • C21D2211/008Martensite
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226Hot rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236Cold rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0273Final recrystallisation annealing

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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)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

Provided are a high-strength, cold-rolled steel sheet having a tensile strength of 1,300 MPa or above, and excellent chemical conversion treatability and workability, and a method for manufacturing the same. The steel sheet contains C: 0.15%-0.22%, Si: 1.0%-2.0%, Mn: 1.7%-2.5%, P: 0.05% or less, S: 0.02% or less, Al: 0.01%-0.05%, N: 0.005% or less, and O: 0.01% or less, and satisfies the relationship [Si]/[Mn] = 0.5 (where [Si] is the Si content and [Mn] is the Mn content), with the remainder comprising iron and unavoidable impurities. The structure, in area percent, is 60% to less than 100% of tempered martensite, and 5% or less (including 0%) of retained austenite, with the remainder being ferrite, the average crystal grain size of the ferrite being 3.5 µm or less, the number of Si-Mn compound oxides having equivalent circular diameter of 5 µm or less at the steel sheet surface being less than 10/100 µm2, and the steel sheet surface coverage of oxides comprising mainly Si being 1% or less.
MX2017011825A 2015-03-18 2016-02-16 High-strength cold-rolled steel sheet and method for manufacturing same. MX2017011825A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015054283 2015-03-18
PCT/JP2016/000778 WO2016147549A1 (en) 2015-03-18 2016-02-16 High-strength cold-rolled steel sheet and method for manufacturing same

Publications (1)

Publication Number Publication Date
MX2017011825A true MX2017011825A (en) 2017-12-07

Family

ID=56918763

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2017011825A MX2017011825A (en) 2015-03-18 2016-02-16 High-strength cold-rolled steel sheet and method for manufacturing same.

Country Status (7)

Country Link
US (1) US20180037969A1 (en)
EP (1) EP3272892B1 (en)
JP (1) JP6210175B2 (en)
KR (1) KR101998652B1 (en)
CN (1) CN107429344A (en)
MX (1) MX2017011825A (en)
WO (1) WO2016147549A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2018003405A (en) * 2015-09-25 2018-06-06 Nippon Steel & Sumitomo Metal Corp Steel sheet.
CN108699647B (en) * 2016-02-18 2020-07-28 杰富意钢铁株式会社 High strength cold rolled steel sheet
JP6673290B2 (en) 2017-05-19 2020-03-25 Jfeスチール株式会社 Manufacturing method of high strength galvanized steel sheet
JP6699633B2 (en) * 2017-07-25 2020-05-27 Jfeスチール株式会社 High-strength cold-rolled steel sheet excellent in corrosion resistance after painting and delayed fracture resistance and method for producing the same
CN111492075B (en) * 2017-12-15 2021-10-12 日本制铁株式会社 Steel sheet, hot-dip galvanized steel sheet, and alloyed hot-dip galvanized steel sheet
US12116648B2 (en) 2018-03-30 2024-10-15 Jfe Steel Corporation Cold-rolled steel sheet and method for manufacturing the same, and cold-rolled steel sheet for annealing
EP3878994A4 (en) * 2018-11-09 2021-12-29 JFE Steel Corporation Cold rolled steel sheet for zirconium-based chemical conversion treatment, method for producing same, zirconium-based chemical conversion-treated steel sheet, and method for producing same
US12241137B2 (en) 2019-01-09 2025-03-04 Jfe Steel Corporation High-strength cold-rolled steel sheet and production method for same
JP6954339B2 (en) * 2019-02-04 2021-10-27 Jfeスチール株式会社 Cold-rolled steel sheet and its manufacturing method
CN110129670B (en) * 2019-04-25 2020-12-15 首钢集团有限公司 A kind of 1300MPa grade high strength and high plasticity hot stamping steel and preparation method thereof
WO2020262652A1 (en) * 2019-06-28 2020-12-30 日本製鉄株式会社 Steel sheet
US12338505B2 (en) 2019-08-30 2025-06-24 Jfe Steel Corporation Steel sheet, member, and methods for producing the same
JP2023534180A (en) * 2020-07-20 2023-08-08 アルセロールミタル Heat-treated cold-rolled steel sheet and manufacturing method thereof
WO2022168167A1 (en) * 2021-02-02 2022-08-11 日本製鉄株式会社 Thin steel sheet
KR102722677B1 (en) * 2021-11-29 2024-10-30 주식회사 포스코 Ultra-high strength steel sheet having excellent elongation and manufacturing method of the same
CN115044831B (en) * 2022-06-09 2023-08-25 包头钢铁(集团)有限责任公司 1100MPa grade cold-rolled martensitic steel and manufacturing method thereof
CN115505840A (en) * 2022-08-25 2022-12-23 包头钢铁(集团)有限责任公司 High-strength quenching distribution steel and production method thereof
KR102883695B1 (en) * 2022-12-20 2025-11-10 주식회사 포스코 Cold rolled steel shhet and method of manufacturing the same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3934604B2 (en) 2003-12-25 2007-06-20 株式会社神戸製鋼所 High strength cold-rolled steel sheet with excellent coating adhesion
JP4586449B2 (en) * 2004-02-27 2010-11-24 Jfeスチール株式会社 Ultra-high-strength cold-rolled steel sheet excellent in bendability and stretch flangeability and manufacturing method thereof
JP4461112B2 (en) * 2006-03-28 2010-05-12 株式会社神戸製鋼所 High strength steel plate with excellent workability
JP5359168B2 (en) * 2008-10-08 2013-12-04 Jfeスチール株式会社 Ultra-high strength cold-rolled steel sheet with excellent ductility and method for producing the same
JP5457840B2 (en) * 2010-01-07 2014-04-02 株式会社神戸製鋼所 High strength cold-rolled steel sheet with excellent elongation and stretch flangeability
JP5668337B2 (en) * 2010-06-30 2015-02-12 Jfeスチール株式会社 Ultra-high-strength cold-rolled steel sheet excellent in ductility and delayed fracture resistance and method for producing the same
JP5729211B2 (en) * 2010-08-31 2015-06-03 Jfeスチール株式会社 Cold rolled steel sheet manufacturing method, cold rolled steel sheet and automobile member
US10174430B2 (en) * 2012-02-28 2019-01-08 Jfe Steel Corporation Si-containing high strength cold rolled steel sheet, method of producing the same, and automotive members
JP5829977B2 (en) * 2012-06-05 2015-12-09 株式会社神戸製鋼所 High-strength cold-rolled steel sheet excellent in yield strength and formability and method for producing the same

Also Published As

Publication number Publication date
KR20170116112A (en) 2017-10-18
WO2016147549A1 (en) 2016-09-22
JPWO2016147549A1 (en) 2017-07-13
US20180037969A1 (en) 2018-02-08
KR101998652B1 (en) 2019-07-10
JP6210175B2 (en) 2017-10-11
EP3272892A1 (en) 2018-01-24
CN107429344A (en) 2017-12-01
EP3272892A4 (en) 2018-01-24
EP3272892B1 (en) 2019-08-28

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