EP2053140A4 - High-strength steel sheets and processes for production of the same - Google Patents

High-strength steel sheets and processes for production of the same

Info

Publication number
EP2053140A4
EP2053140A4 EP07790799A EP07790799A EP2053140A4 EP 2053140 A4 EP2053140 A4 EP 2053140A4 EP 07790799 A EP07790799 A EP 07790799A EP 07790799 A EP07790799 A EP 07790799A EP 2053140 A4 EP2053140 A4 EP 2053140A4
Authority
EP
European Patent Office
Prior art keywords
processes
production
same
steel sheets
strength 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.)
Granted
Application number
EP07790799A
Other languages
German (de)
French (fr)
Other versions
EP2053140B1 (en
EP2053140A1 (en
Inventor
Kenji Saito
Tomokazu Masuda
Masaaki Miura
Yoichi Mukai
Shushi Ikeda
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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
Priority claimed from JP2007145987A external-priority patent/JP5234893B2/en
Priority claimed from JP2007144466A external-priority patent/JP5201653B2/en
Priority claimed from JP2007144705A external-priority patent/JP4291860B2/en
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to EP11193464.2A priority Critical patent/EP2465961B1/en
Priority to EP11193479.0A priority patent/EP2465962B1/en
Publication of EP2053140A1 publication Critical patent/EP2053140A1/en
Publication of EP2053140A4 publication Critical patent/EP2053140A4/en
Application granted granted Critical
Publication of EP2053140B1 publication Critical patent/EP2053140B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C22C38/14—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
    • 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
    • C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • 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
    • 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
    • C22C38/02—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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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

Landscapes

  • 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 Sheet Steel (AREA)
EP07790799.6A 2006-07-14 2007-07-13 High-strength steel sheets and processes for production of the same Not-in-force EP2053140B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP11193464.2A EP2465961B1 (en) 2006-07-14 2007-07-13 High-strength steel sheets and processes for production of the same
EP11193479.0A EP2465962B1 (en) 2006-07-14 2007-07-13 High-strength steel sheets and processes for production of the same

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2006194056 2006-07-14
JP2007145987A JP5234893B2 (en) 2007-05-31 2007-05-31 High-strength steel sheet excellent in elongation and stretch flangeability and method for producing the same
JP2007144466A JP5201653B2 (en) 2007-05-31 2007-05-31 High-strength steel sheet excellent in elongation and stretch flangeability and method for producing the same
JP2007144705A JP4291860B2 (en) 2006-07-14 2007-05-31 High-strength steel sheet and manufacturing method thereof
PCT/JP2007/064019 WO2008007785A1 (en) 2006-07-14 2007-07-13 High-strength steel sheets and processes for production of the same

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP11193479.0 Division-Into 2011-12-14
EP11193464.2 Division-Into 2011-12-14

Publications (3)

Publication Number Publication Date
EP2053140A1 EP2053140A1 (en) 2009-04-29
EP2053140A4 true EP2053140A4 (en) 2011-06-29
EP2053140B1 EP2053140B1 (en) 2013-12-04

Family

ID=38923340

Family Applications (3)

Application Number Title Priority Date Filing Date
EP11193479.0A Not-in-force EP2465962B1 (en) 2006-07-14 2007-07-13 High-strength steel sheets and processes for production of the same
EP07790799.6A Not-in-force EP2053140B1 (en) 2006-07-14 2007-07-13 High-strength steel sheets and processes for production of the same
EP11193464.2A Not-in-force EP2465961B1 (en) 2006-07-14 2007-07-13 High-strength steel sheets and processes for production of the same

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP11193479.0A Not-in-force EP2465962B1 (en) 2006-07-14 2007-07-13 High-strength steel sheets and processes for production of the same

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP11193464.2A Not-in-force EP2465961B1 (en) 2006-07-14 2007-07-13 High-strength steel sheets and processes for production of the same

Country Status (5)

Country Link
US (1) US20090277547A1 (en)
EP (3) EP2465962B1 (en)
KR (1) KR101082680B1 (en)
CN (1) CN101460647B (en)
WO (1) WO2008007785A1 (en)

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US8679265B2 (en) * 2007-11-22 2014-03-25 Kobe Steel, Ltd. High-strength cold-rolled steel sheet
US8343288B2 (en) 2008-03-07 2013-01-01 Kobe Steel, Ltd. Cold rolled steel sheet
WO2010109702A1 (en) * 2009-03-27 2010-09-30 株式会社神戸製鋼所 Cold-rolled steel sheet
JP4712882B2 (en) * 2008-07-11 2011-06-29 株式会社神戸製鋼所 High strength cold-rolled steel sheet with excellent hydrogen embrittlement resistance and workability
JP4712838B2 (en) * 2008-07-11 2011-06-29 株式会社神戸製鋼所 High strength cold-rolled steel sheet with excellent hydrogen embrittlement resistance and workability
JP5365112B2 (en) * 2008-09-10 2013-12-11 Ｊｆｅスチール株式会社 High strength steel plate and manufacturing method thereof
JP5418047B2 (en) * 2008-09-10 2014-02-19 Ｊｆｅスチール株式会社 High strength steel plate and manufacturing method thereof
JP5637342B2 (en) * 2008-09-18 2014-12-10 国立大学法人 岡山大学 Hot-pressed steel plate member and method for manufacturing the same
KR101091306B1 (en) * 2008-12-26 2011-12-07 주식회사 포스코 High strength steel sheet for reactor containment vessel and its manufacturing method
JP5565785B2 (en) 2009-03-05 2014-08-06 株式会社デルタツーリング Structural material
US8460800B2 (en) * 2009-03-31 2013-06-11 Kobe Steel, Ltd. High-strength cold-rolled steel sheet excellent in bending workability
CN102341518B (en) * 2009-04-03 2013-04-10 株式会社神户制钢所 Cold-rolled steel sheet and method for producing the same
JP6010730B2 (en) 2009-05-29 2016-10-19 日産自動車株式会社 High-strength molded article by high ductility die quench and method for producing the same
DE102010003997A1 (en) * 2010-01-04 2011-07-07 Benteler Automobiltechnik GmbH, 33102 Use of a steel alloy
JP5327106B2 (en) * 2010-03-09 2013-10-30 Ｊｆｅスチール株式会社 Press member and manufacturing method thereof
JP5671359B2 (en) 2010-03-24 2015-02-18 株式会社神戸製鋼所 High strength steel plate with excellent warm workability
JP5662902B2 (en) 2010-11-18 2015-02-04 株式会社神戸製鋼所 High-strength steel sheet with excellent formability, warm working method, and warm-worked automotive parts
KR101253885B1 (en) * 2010-12-27 2013-04-16 주식회사 포스코 Steel sheet fir formed member, formed member having excellent ductility and method for manufacturing the same
EP2489748B1 (en) * 2011-02-18 2017-12-13 ThyssenKrupp Steel Europe AG Hot-rolled steel surface product produced from a complex phase steel and method for the manufacture
JP5667472B2 (en) 2011-03-02 2015-02-12 株式会社神戸製鋼所 High-strength steel sheet excellent in deep drawability at room temperature and warm, and its warm working method
US20140044988A1 (en) * 2011-03-31 2014-02-13 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.) High-strength steel sheet excellent in workability and manufacturing method thereof
WO2012169638A1 (en) * 2011-06-10 2012-12-13 株式会社神戸製鋼所 Hot press molded article, method for producing same, and thin steel sheet for hot press molding
JP5636347B2 (en) 2011-08-17 2014-12-03 株式会社神戸製鋼所 High strength steel sheet with excellent formability at room temperature and warm, and its warm forming method
CN103987870B (en) 2011-12-15 2016-01-06 株式会社神户制钢所 The high strength cold rolled steel plate that the deviation of intensity and ductility is little and manufacture method thereof
US9115416B2 (en) * 2011-12-19 2015-08-25 Kobe Steel, Ltd. High-yield-ratio and high-strength steel sheet excellent in workability
DE102011057007B4 (en) * 2011-12-23 2013-09-26 Benteler Automobiltechnik Gmbh Method for producing a motor vehicle component and motor vehicle component
JP5860308B2 (en) 2012-02-29 2016-02-16 株式会社神戸製鋼所 High strength steel plate with excellent warm formability and method for producing the same
JP5632904B2 (en) 2012-03-29 2014-11-26 株式会社神戸製鋼所 Manufacturing method of high-strength cold-rolled steel sheet with excellent workability
JP5860343B2 (en) 2012-05-29 2016-02-16 株式会社神戸製鋼所 High strength cold-rolled steel sheet with small variations in strength and ductility and method for producing the same
EP2857539A4 (en) 2012-05-31 2016-07-20 Kobe Steel Ltd High strength cold-rolled steel plate and manufacturing method therefor
JP5906147B2 (en) * 2012-06-29 2016-04-20 株式会社神戸製鋼所 High-tensile steel plate with excellent base metal toughness and HAZ toughness
KR101223242B1 (en) * 2012-06-29 2013-01-17 삼부기술 주식회사 Apparatus for drawing digital map
JP5860354B2 (en) 2012-07-12 2016-02-16 株式会社神戸製鋼所 High-strength hot-dip galvanized steel sheet with excellent yield strength and formability and method for producing the same
KR101223245B1 (en) * 2012-09-12 2013-01-17 삼부기술 주식회사 Map image making system
JP5609945B2 (en) * 2012-10-18 2014-10-22 Ｊｆｅスチール株式会社 High-strength cold-rolled steel sheet and manufacturing method thereof
JP2015200012A (en) * 2014-03-31 2015-11-12 株式会社神戸製鋼所 High-strength cold-rolled steel sheet, high-strength galvanized steel sheet, and high-strength alloy galvanized steel sheet having excellent ductility, stretch-flangeability, and weldability
WO2015177582A1 (en) * 2014-05-20 2015-11-26 Arcelormittal Investigación Y Desarrollo Sl Double-annealed steel sheet having high mechanical strength and ductility characteristics, method of manufacture and use of such sheets
WO2016001706A1 (en) * 2014-07-03 2016-01-07 Arcelormittal Method for producing a high strength steel sheet having improved strength and formability and obtained sheet
US10199910B2 (en) * 2014-10-03 2019-02-05 Ford Global Technologies, Llc Motor core formed from a single steel source and having separately processed rotor and stator laminations
US20180127856A1 (en) * 2015-02-27 2018-05-10 Jfe Steel Corporation High-strength cold-rolled steel sheet and method for manufacturing the same
JP6515393B2 (en) * 2015-04-15 2019-05-22 日本製鉄株式会社 Hot rolled steel sheet and method of manufacturing the same
KR101725274B1 (en) * 2015-10-16 2017-04-10 삼화스틸(주) Steel plate with high tensile strength and process for the same
CN106119703B (en) * 2016-06-21 2018-01-30 宝山钢铁股份有限公司 A kind of 980MPa levels hot-rolled dual-phase steel and its manufacture method
MX2019000577A (en) * 2016-08-05 2019-07-04 Nippon Steel Corp Steel sheet and plated steel sheet.
KR102206448B1 (en) * 2016-08-10 2021-01-21 제이에프이 스틸 가부시키가이샤 Thin steel plate and its manufacturing method
KR102186204B1 (en) * 2016-08-30 2020-12-03 제이에프이 스틸 가부시키가이샤 Thin steel plate and its manufacturing method
KR101917472B1 (en) * 2016-12-23 2018-11-09 주식회사 포스코 Tempered martensitic steel having low yield ratio and excellent uniform elongation property, and method for manufacturing the same
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See also references of WO2008007785A1 *

Also Published As

Publication number Publication date
EP2465962A1 (en) 2012-06-20
EP2053140B1 (en) 2013-12-04
EP2465962B1 (en) 2013-12-04
KR20090018166A (en) 2009-02-19
WO2008007785A1 (en) 2008-01-17
KR101082680B1 (en) 2011-11-15
CN101460647B (en) 2015-05-20
EP2465961A1 (en) 2012-06-20
EP2465961B1 (en) 2013-12-04
CN101460647A (en) 2009-06-17
US20090277547A1 (en) 2009-11-12
EP2053140A1 (en) 2009-04-29

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