DE60121233D1 - High strength cold rolled steel sheet with high r-value, excellent strain aging properties and aging resistance, and process for its production - Google Patents

High strength cold rolled steel sheet with high r-value, excellent strain aging properties and aging resistance, and process for its production

Info

Publication number
DE60121233D1
DE60121233D1 DE60121233T DE60121233T DE60121233D1 DE 60121233 D1 DE60121233 D1 DE 60121233D1 DE 60121233 T DE60121233 T DE 60121233T DE 60121233 T DE60121233 T DE 60121233T DE 60121233 D1 DE60121233 D1 DE 60121233D1
Authority
DE
Germany
Prior art keywords
production
steel sheet
value
rolled steel
cold rolled
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.)
Expired - Lifetime
Application number
DE60121233T
Other languages
German (de)
Other versions
DE60121233T2 (en
Inventor
Chikara Kami
Akio Tosaka
Takuya Yamazaki
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.)
JFE Steel Corp
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
Priority claimed from JP2000156274A external-priority patent/JP4524859B2/en
Priority claimed from JP2000335803A external-priority patent/JP4665302B2/en
Application filed by JFE Steel Corp filed Critical JFE Steel Corp
Publication of DE60121233D1 publication Critical patent/DE60121233D1/en
Application granted granted Critical
Publication of DE60121233T2 publication Critical patent/DE60121233T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
    • C21D8/0426—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
    • C21D8/0247—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
    • 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
    • C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
    • 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
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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
    • 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
    • C21D1/185—Hardening; Quenching with or without subsequent tempering from an intercritical temperature
    • 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
    • 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
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
    • C21D8/0436—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
    • C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
    • C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
    • C21D8/0473—Final recrystallisation annealing
DE60121233T 2000-05-26 2001-02-14 High strength cold rolled steel sheet with high r-value, excellent strain aging properties and aging resistance, and process for its production Expired - Lifetime DE60121233T2 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2000156274A JP4524859B2 (en) 2000-05-26 2000-05-26 Cold-drawn steel sheet for deep drawing with excellent strain age hardening characteristics and method for producing the same
JP2000156274 2000-05-26
JP2000193717 2000-06-28
JP2000193717 2000-06-28
JP2000328924 2000-10-27
JP2000328924 2000-10-27
JP2000335803A JP4665302B2 (en) 2000-11-02 2000-11-02 High-tensile cold-rolled steel sheet having high r value, excellent strain age hardening characteristics and non-aging at room temperature, and method for producing the same
JP2000335803 2000-11-02

Publications (2)

Publication Number Publication Date
DE60121233D1 true DE60121233D1 (en) 2006-08-10
DE60121233T2 DE60121233T2 (en) 2006-11-09

Family

ID=27481319

Family Applications (3)

Application Number Title Priority Date Filing Date
DE60121234T Expired - Lifetime DE60121234T2 (en) 2000-05-26 2001-02-14 Cold rolled steel sheet and zinc sheet with strain age properties and process for its production
DE60121233T Expired - Lifetime DE60121233T2 (en) 2000-05-26 2001-02-14 High strength cold rolled steel sheet with high r-value, excellent strain aging properties and aging resistance, and process for its production
DE60121162T Expired - Lifetime DE60121162T2 (en) 2000-05-26 2001-02-14 COLD-ROLLED STEEL PLATE AND GALVANIZED STEEL PLATE WITH GOOD RECOILING CHARACTERISTICS AND METHOD OF MANUFACTURING THEREOF

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE60121234T Expired - Lifetime DE60121234T2 (en) 2000-05-26 2001-02-14 Cold rolled steel sheet and zinc sheet with strain age properties and process for its production

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE60121162T Expired - Lifetime DE60121162T2 (en) 2000-05-26 2001-02-14 COLD-ROLLED STEEL PLATE AND GALVANIZED STEEL PLATE WITH GOOD RECOILING CHARACTERISTICS AND METHOD OF MANUFACTURING THEREOF

Country Status (7)

Country Link
EP (3) EP1291448B1 (en)
KR (1) KR20020019124A (en)
CN (1) CN1158398C (en)
CA (1) CA2379698C (en)
DE (3) DE60121234T2 (en)
TW (1) TW565621B (en)
WO (1) WO2001090431A1 (en)

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JP4635525B2 (en) * 2003-09-26 2011-02-23 Ｊｆｅスチール株式会社 High-strength steel sheet excellent in deep drawability and manufacturing method thereof
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DE102004044022A1 (en) * 2004-09-09 2006-03-16 Salzgitter Flachstahl Gmbh Well-tempered, unalloyed or microalloyed bake-hardening rolled steel and process for its preparation
US8337643B2 (en) 2004-11-24 2012-12-25 Nucor Corporation Hot rolled dual phase steel sheet
US7959747B2 (en) 2004-11-24 2011-06-14 Nucor Corporation Method of making cold rolled dual phase steel sheet
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EP1498507B1 (en) 2006-06-28
CN1386140A (en) 2002-12-18
EP1498506A1 (en) 2005-01-19
DE60121162D1 (en) 2006-08-10
EP1291448A4 (en) 2004-06-30
KR20020019124A (en) 2002-03-09
EP1498507A1 (en) 2005-01-19
EP1291448A1 (en) 2003-03-12
DE60121234D1 (en) 2006-08-10
CA2379698A1 (en) 2001-11-29
WO2001090431A1 (en) 2001-11-29
EP1291448B1 (en) 2006-06-28
EP1498506B1 (en) 2006-06-28
TW565621B (en) 2003-12-11
DE60121162T2 (en) 2006-11-09
CN1158398C (en) 2004-07-21
DE60121233T2 (en) 2006-11-09
CA2379698C (en) 2009-02-17
DE60121234T2 (en) 2006-11-09

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