EP1458896A4 - High strength cold rolled steel sheet with superior formability and weldability, and manufacturing method therefor - Google Patents

High strength cold rolled steel sheet with superior formability and weldability, and manufacturing method therefor

Info

Publication number
EP1458896A4
EP1458896A4 EP02741471A EP02741471A EP1458896A4 EP 1458896 A4 EP1458896 A4 EP 1458896A4 EP 02741471 A EP02741471 A EP 02741471A EP 02741471 A EP02741471 A EP 02741471A EP 1458896 A4 EP1458896 A4 EP 1458896A4
Authority
EP
European Patent Office
Prior art keywords
weldability
manufacturing
steel sheet
high strength
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.)
Withdrawn
Application number
EP02741471A
Other languages
German (de)
French (fr)
Other versions
EP1458896A1 (en
Inventor
Seung-Chul Baek
Sung-Ho Park
Choon-Sun Bea
Seong-Ju Kim
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.)
Posco Holdings Inc
Original Assignee
Posco 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 Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP1458896A1 publication Critical patent/EP1458896A1/en
Publication of EP1458896A4 publication Critical patent/EP1458896A4/en
Withdrawn legal-status Critical Current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 by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • 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
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0273—Final recrystallisation annealing
    • 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
    • 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
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties 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 by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties 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 by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0278—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips involving a particular surface treatment

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)
EP02741471A 2001-12-27 2002-06-20 High strength cold rolled steel sheet with superior formability and weldability, and manufacturing method therefor Withdrawn EP1458896A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020010085539A KR100554753B1 (en) 2001-12-27 2001-12-27 High strength cold rolled steel sheet with superior formability and weldability and method for manufacturing thereof
KR2001085539 2001-12-27
PCT/KR2002/001167 WO2003056041A1 (en) 2001-12-27 2002-06-20 High strength cold rolled steel sheet with superior formability and weldability, and manufacturing method therefor

Publications (2)

Publication Number Publication Date
EP1458896A1 EP1458896A1 (en) 2004-09-22
EP1458896A4 true EP1458896A4 (en) 2004-12-29

Family

ID=19717641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02741471A Withdrawn EP1458896A4 (en) 2001-12-27 2002-06-20 High strength cold rolled steel sheet with superior formability and weldability, and manufacturing method therefor

Country Status (5)

Country Link
US (1) US20040238083A1 (en)
EP (1) EP1458896A4 (en)
JP (1) JP3895728B2 (en)
KR (1) KR100554753B1 (en)
WO (1) WO2003056041A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5165236B2 (en) * 2006-12-27 2013-03-21 新日鐵住金ステンレス株式会社 Stainless steel plate for structural members with excellent shock absorption characteristics
US8752752B2 (en) * 2009-03-09 2014-06-17 Hong Kong Polytechnic University Method of making a composite steel plate
KR101129757B1 (en) * 2009-03-26 2012-03-23 현대제철 주식회사 Method for preventing edge part saw type crack of thin slab
EP2738276B1 (en) * 2011-07-29 2019-04-24 Nippon Steel & Sumitomo Metal Corporation High-strength galvanized steel sheet and high-strength steel sheet having superior moldability, and method for producing each
IN2015DN00521A (en) * 2012-08-06 2015-06-26 Nippon Steel & Sumitomo Metal Corp
CN103276303A (en) * 2013-06-07 2013-09-04 南京钢铁股份有限公司 High strength chain steel for mine, and preparation method thereof
CN104630641B (en) * 2014-12-11 2017-02-22 武汉钢铁(集团)公司 800MPa-grade high-strength high-plasticity low-carbon medium-manganese steel and manufacturing method thereof
CN105154763A (en) * 2015-09-24 2015-12-16 华北理工大学 Low-carbon silicon-manganese bainite high-strength steel and production method thereof
CN108441604B (en) * 2018-01-24 2019-09-03 易觉汽车科技（上海）有限公司 A kind of auto parts and components part intensity adjustable design method
CN117127099B (en) * 2023-04-28 2024-04-16 鞍钢股份有限公司 1300MPa ultra-high strength plastic cold-rolled Mn-TRIP steel and preparation method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10259448A (en) * 1997-03-21 1998-09-29 Kobe Steel Ltd High strength steel sheet excellent in static absorbed energy and impact resistance and its production
JPH10280087A (en) * 1997-04-10 1998-10-20 Nippon Steel Corp High strength cold rolled steel sheet excellent in surface characteristic and formability, and its production
JPH1180886A (en) * 1997-09-04 1999-03-26 Kawasaki Steel Corp Cold rolled steel sheet for drum can, its production, and high strength drum can made of steel
US5919415A (en) * 1996-12-31 1999-07-06 Ascometal Steel and process for the manufacture of a steel component formed by cold plastic deformation
JPH11256273A (en) * 1998-03-12 1999-09-21 Kobe Steel Ltd High strength steel plate excellent in impact resistance
JPH11343538A (en) * 1998-05-29 1999-12-14 Kawasaki Steel Corp Cold-rolled steel sheet suitable for high-density energy beam welding and its production
JP2001081533A (en) * 1999-09-16 2001-03-27 Sumitomo Metal Ind Ltd High tensile strength cold rolled steel sheet and its manufacture

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0238532A (en) * 1988-07-29 1990-02-07 Kobe Steel Ltd Manufacture of cold rolled high-tensile sheet steel
JPH09194935A (en) * 1996-01-10 1997-07-29 Toyo Kohan Co Ltd Production of cold rolled steel sheet for gasket material, excellent in spring characteristic, and gasket material
KR100328044B1 (en) * 1997-11-04 2002-05-10 이구택 A Manufacturing Method of High Strength Cold Rolled Steel Sheet Having
KR100415667B1 (en) * 1999-12-20 2004-01-31 주식회사 포스코 A method for high strength cold rolled steel sheet having superior impact absorption property and formability and a method for manufacturing it
JP4524850B2 (en) * 2000-04-27 2010-08-18 Ｊｆｅスチール株式会社 High-tensile cold-rolled steel sheet with excellent ductility and strain age hardening characteristics and method for producing high-tensile cold-rolled steel sheet
JP4839527B2 (en) * 2000-05-31 2011-12-21 Ｊｆｅスチール株式会社 Cold-rolled steel sheet with excellent strain age hardening characteristics and method for producing the same
KR100470652B1 (en) * 2000-12-20 2005-03-07 주식회사 포스코 A method for manufacturing high strength cold rolled steel sheet with superior formability

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5919415A (en) * 1996-12-31 1999-07-06 Ascometal Steel and process for the manufacture of a steel component formed by cold plastic deformation
JPH10259448A (en) * 1997-03-21 1998-09-29 Kobe Steel Ltd High strength steel sheet excellent in static absorbed energy and impact resistance and its production
JPH10280087A (en) * 1997-04-10 1998-10-20 Nippon Steel Corp High strength cold rolled steel sheet excellent in surface characteristic and formability, and its production
JPH1180886A (en) * 1997-09-04 1999-03-26 Kawasaki Steel Corp Cold rolled steel sheet for drum can, its production, and high strength drum can made of steel
JPH11256273A (en) * 1998-03-12 1999-09-21 Kobe Steel Ltd High strength steel plate excellent in impact resistance
JPH11343538A (en) * 1998-05-29 1999-12-14 Kawasaki Steel Corp Cold-rolled steel sheet suitable for high-density energy beam welding and its production
JP2001081533A (en) * 1999-09-16 2001-03-27 Sumitomo Metal Ind Ltd High tensile strength cold rolled steel sheet and its manufacture

Non-Patent Citations (8)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 11 28 November 1997 (1997-11-28) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 14 31 December 1998 (1998-12-31) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 01 29 January 1999 (1999-01-29) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 08 30 June 1999 (1999-06-30) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 14 22 December 1999 (1999-12-22) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 03 30 March 2000 (2000-03-30) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 20 10 July 2001 (2001-07-10) *
See also references of WO03056041A1 *

Also Published As

Publication number Publication date
WO2003056041A1 (en) 2003-07-10
KR20030055524A (en) 2003-07-04
EP1458896A1 (en) 2004-09-22
JP3895728B2 (en) 2007-03-22
KR100554753B1 (en) 2006-02-24
JP2005513271A (en) 2005-05-12
US20040238083A1 (en) 2004-12-02

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Legal Events

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Effective date: 20041116

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Effective date: 20090625

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Effective date: 20091106