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WO2007067014A8 - High strength cold rolled steel sheet having excellent formability and coating property, zinc-based metal plated steel sheet made of it and the method for manufacturing thereof - Google Patents

High strength cold rolled steel sheet having excellent formability and coating property, zinc-based metal plated steel sheet made of it and the method for manufacturing thereof Download PDF

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Publication number
WO2007067014A8
WO2007067014A8 PCT/KR2006/005355 KR2006005355W WO2007067014A8 WO 2007067014 A8 WO2007067014 A8 WO 2007067014A8 KR 2006005355 W KR2006005355 W KR 2006005355W WO 2007067014 A8 WO2007067014 A8 WO 2007067014A8
Authority
WO
WIPO (PCT)
Prior art keywords
steel sheet
zinc
manufacturing
cold rolled
strength cold
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.)
Ceased
Application number
PCT/KR2006/005355
Other languages
French (fr)
Other versions
WO2007067014A1 (en
Inventor
Yeon-Sang Ahn
Jin-Keun Oh
Il-Ryoung Sohn
Seong-Ju Kim
Kwang-Geun Chin
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
Priority claimed from KR1020050120407A external-priority patent/KR100711358B1/en
Priority claimed from KR1020050128666A external-priority patent/KR100711468B1/en
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Priority to JP2008544264A priority Critical patent/JP5042232B2/en
Priority to EP06824061.3A priority patent/EP1960562B1/en
Publication of WO2007067014A1 publication Critical patent/WO2007067014A1/en
Anticipated expiration legal-status Critical
Publication of WO2007067014A8 publication Critical patent/WO2007067014A8/en
Ceased 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
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
    • C22C38/18—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
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel 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
    • C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
    • 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)
  • Metal Rolling (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Coating With Molten Metal (AREA)

Abstract

Provided is a high-strength cold rolled steel sheet and a high-strength zinc-coated steel sheet, which are primarily used as a structural member and a reinforcement of the car body, and has excellent formability and coating properties; and methods for manufacturing the same. The steel sheet comprises 0.01-0.2 wt% of carbon (C), 0.01-2.0 wt% of silicon (Si), 0.5-4.0 wt% of manganese (Mn), less than 0.1 wt% of phosphorous (P), less than 0.03 wt% of sulfur (S), less than 1.0 wt% of soluble aluminum (Sol. Al), 0.001-0.1 wt% of nitrogen (N), 0.005-1.0 wt% of antimony (Sb), and the balance of iron (Fe) with inevitable impurities. Provided is also a zinc- coated steel sheet and preparation thereof using the same steel sheet. According to the present invention, excellent coating properties and high tensile strength of more than 490 MPa can be achieved. In addition, the formability of TS * El balance having 15,000 MPaD % or higher can be secured. Further, excellent bake hardenability of a BH value having 80 MPa or higher can be obtained.
PCT/KR2006/005355 2005-12-09 2006-12-08 Tole d'acier laminee a froid de haute resistance possedant une excellente propriete de formabilite et de revetement, tole d'acier plaquee de metal a base de zinc fabriquee a partir de cette tole et procece de fabrication de celle-ci Ceased WO2007067014A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008544264A JP5042232B2 (en) 2005-12-09 2006-12-08 High-strength cold-rolled steel sheet excellent in formability and plating characteristics, galvanized steel sheet using the same, and method for producing the same
EP06824061.3A EP1960562B1 (en) 2005-12-09 2006-12-08 High strenght cold rolled steel sheet having excellent formability and coating property, zinc-based metal plated steel sheet made of it and the method for manufacturing thereof

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2005-0120407 2005-12-09
KR1020050120407A KR100711358B1 (en) 2005-12-09 2005-12-09 High strength cold rolled steel sheet and hot dip galvanized steel sheet with excellent moldability, baking hardening and plating characteristics, and a manufacturing method thereof
KR10-2005-0128666 2005-12-23
KR1020050128666A KR100711468B1 (en) 2005-12-23 2005-12-23 High strength cold rolled steel sheet and hot dip galvanized steel sheet with excellent formability and plating characteristics, and method of manufacturing the same

Publications (2)

Publication Number Publication Date
WO2007067014A1 WO2007067014A1 (en) 2007-06-14
WO2007067014A8 true WO2007067014A8 (en) 2014-03-13

Family

ID=38123104

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2006/005355 Ceased WO2007067014A1 (en) 2005-12-09 2006-12-08 Tole d'acier laminee a froid de haute resistance possedant une excellente propriete de formabilite et de revetement, tole d'acier plaquee de metal a base de zinc fabriquee a partir de cette tole et procece de fabrication de celle-ci

Country Status (4)

Country Link
EP (1) EP1960562B1 (en)
JP (1) JP5042232B2 (en)
CN (1) CN104264075B (en)
WO (1) WO2007067014A1 (en)

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KR100957981B1 (en) * 2007-12-20 2010-05-19 주식회사 포스코 High strength cold rolled steel, hot dip galvanized steel with excellent workability and its manufacturing method
KR100928788B1 (en) * 2007-12-28 2009-11-25 주식회사 포스코 High strength steel sheet with excellent weldability and manufacturing method
KR101008117B1 (en) 2008-05-19 2011-01-13 주식회사 포스코 High-strength thin steel sheet and hot-dip galvanized steel sheet with excellent surface characteristics and manufacturing method
KR101027250B1 (en) 2008-05-20 2011-04-06 주식회사 포스코 High strength cold rolled steel with excellent ductility and delayed fracture resistance, molten zinc plated steel sheet and manufacturing method
KR101008099B1 (en) * 2008-05-29 2011-01-13 주식회사 포스코 High strength steel plate with excellent ductility and no edge cracking, hot dip galvanized steel sheet and manufacturing method thereof
JP2010024525A (en) * 2008-07-23 2010-02-04 Kobe Steel Ltd Galvannealed steel sheet
JP4623233B2 (en) * 2009-02-02 2011-02-02 Ｊｆｅスチール株式会社 High-strength hot-dip galvanized steel sheet and manufacturing method thereof
JP4766186B2 (en) * 2009-08-21 2011-09-07 Ｊｆｅスチール株式会社 Hot pressed member, steel plate for hot pressed member, method for manufacturing hot pressed member
US8911567B2 (en) * 2009-11-09 2014-12-16 Nippon Steel & Sumitomo Metal Corporation High-strength steel sheet having excellent processability and paint bake hardenability, and method for producing of high-strength steel sheet
JP5659604B2 (en) * 2010-07-30 2015-01-28 Ｊｆｅスチール株式会社 High strength steel plate and manufacturing method thereof
CN103842545A (en) 2011-09-28 2014-06-04 杰富意钢铁株式会社 High strength steel plate and manufacturing method thereof
KR101382981B1 (en) * 2011-11-07 2014-04-09 주식회사 포스코 Steel sheet for warm press forming, warm press formed parts and method for manufacturing thereof
KR101353787B1 (en) * 2011-12-26 2014-01-22 주식회사 포스코 Ultra high strength colde rolled steel sheet having excellent weldability and bendability and method for manufacturing the same
JP5982906B2 (en) 2012-03-19 2016-08-31 Ｊｆｅスチール株式会社 Method for producing high-strength hot-dip galvanized steel sheet
JP5982905B2 (en) 2012-03-19 2016-08-31 Ｊｆｅスチール株式会社 Method for producing high-strength hot-dip galvanized steel sheet
MX376277B (en) 2013-03-04 2025-03-07 Jfe Steel Corp HIGH STRENGTH STEEL SHEET AND METHOD FOR PRODUCTION THEREOF AND HIGH STRENGTH GALVANIZED STEEL SHEET AND METHOD FOR PRODUCTION THEREOF.
JP5884196B2 (en) 2014-02-18 2016-03-15 Ｊｆｅスチール株式会社 Method for producing high-strength hot-dip galvanized steel sheet
KR101630976B1 (en) * 2014-12-08 2016-06-16 주식회사 포스코 Ultra-high strenth galvanized steel sheet having excellent surface and coating adheision and method for manufacturing thereof
KR101561008B1 (en) 2014-12-19 2015-10-16 주식회사 포스코 Hot dip galvanized and galvannealed steel sheet having higher hole expansion ratio, and method for the same
KR101561007B1 (en) * 2014-12-19 2015-10-16 주식회사 포스코 High strength cold rolled, hot dip galvanized steel sheet with excellent formability and less deviation of mechanical properties in steel strip, and method for production thereof
KR101647224B1 (en) * 2014-12-23 2016-08-10 주식회사 포스코 High strength galvanized steel sheet having excellent surface qualities, plating adhesion and formability and method for manufacturing the same
CN105088103A (en) * 2015-08-25 2015-11-25 广西南宁智翠科技咨询有限公司 Cold-brittleness-resistance alloy steel and preparation method thereof
JP6202234B1 (en) * 2016-03-31 2017-09-27 Ｊｆｅスチール株式会社 Thin steel plate and plated steel plate, method for producing hot rolled steel plate, method for producing cold rolled full hard steel plate, method for producing thin steel plate, and method for producing plated steel plate
KR101808431B1 (en) * 2016-06-21 2017-12-13 현대제철 주식회사 High strength cold- rolled steel sheet having improved workablity and method of manufacturing the same
KR101899688B1 (en) * 2016-12-23 2018-09-17 주식회사 포스코 High strength hot-rolled steel sheet having excellent continuously producing property, high strength gavanized steel sheet having excellent surface property and plating adhesion and method for manufacturing thereof
WO2019122965A1 (en) * 2017-12-19 2019-06-27 Arcelormittal Cold rolled and coated steel sheet and a method of manufacturing thereof
KR102020412B1 (en) 2017-12-22 2019-09-10 주식회사 포스코 High-strength steel sheet having excellent crash worthiness and formability, and method for manufacturing thereof
KR102020411B1 (en) * 2017-12-22 2019-09-10 주식회사 포스코 High-strength steel sheet having excellent workablity and method for manufacturing thereof
KR102031452B1 (en) 2017-12-24 2019-10-11 주식회사 포스코 Cold rolled steel sheet and hot dip zinc-based plated steel sheet having excellent bake hardenability and plating adhesion, and method for manufaturing the same
KR102064962B1 (en) 2017-12-24 2020-02-11 주식회사 포스코 Cold rolled steel sheet and hot dip zinc-based plated steel sheet having excellent bake hardenability and corrosion resistance, and method for manufacturing the same
KR102490312B1 (en) * 2020-12-09 2023-01-19 주식회사 포스코 High-strength hot-dip galvanized steel sheet with high ductility and excellent formability
KR102487306B1 (en) * 2020-12-21 2023-01-13 현대제철 주식회사 Ultra high strength cold rolled steel sheet having excellent spot weldability and formability, ultra high strength galvanized steel sheet and method of manufacturing the same
CN113481431B (en) * 2021-06-16 2022-05-13 钢铁研究总院 A kind of 440MPa grade high nitrogen easily weldable steel and preparation method thereof
CN117286396A (en) * 2022-06-17 2023-12-26 宝山钢铁股份有限公司 Hydrogen-induced cracking-resistant cold-rolled hot-dip galvanized ultra-high-strength dual-phase steel and its manufacturing method

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Also Published As

Publication number Publication date
CN104264075A (en) 2015-01-07
WO2007067014A1 (en) 2007-06-14
EP1960562A4 (en) 2012-01-25
EP1960562A1 (en) 2008-08-27
JP5042232B2 (en) 2012-10-03
JP2009518541A (en) 2009-05-07
EP1960562B1 (en) 2015-08-26
CN104264075B (en) 2018-01-30

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