EP1885899A4 - Cold rolled steel sheet having high yield ratio and less anisotropy, process for producing the same - Google Patents

Cold rolled steel sheet having high yield ratio and less anisotropy, process for producing the same

Info

Publication number
EP1885899A4
EP1885899A4 EP06732896A EP06732896A EP1885899A4 EP 1885899 A4 EP1885899 A4 EP 1885899A4 EP 06732896 A EP06732896 A EP 06732896A EP 06732896 A EP06732896 A EP 06732896A EP 1885899 A4 EP1885899 A4 EP 1885899A4
Authority
EP
European Patent Office
Prior art keywords
producing
steel sheet
same
rolled steel
high yield
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
EP06732896A
Other languages
German (de)
French (fr)
Other versions
EP1885899A1 (en
EP1885899B1 (en
Inventor
Jeong-Bong Yoon
Jin-Hee Chung
Kwang-Geun Chin
Sang-Ho Han
Sung-Il Kim
Ho-Seok 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
Priority claimed from KR1020050130132A external-priority patent/KR100742819B1/en
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP1885899A1 publication Critical patent/EP1885899A1/en
Publication of EP1885899A4 publication Critical patent/EP1885899A4/en
Application granted granted Critical
Publication of EP1885899B1 publication Critical patent/EP1885899B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • C21D8/04—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
    • C21D8/0463—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 following 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
    • C21D8/0447—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
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/04—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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • 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
    • C21D2211/004—Dispersions; Precipitations

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)
EP06732896.3A 2005-05-03 2006-05-03 Cold rolled steel sheet having high yield ratio and less anisotropy, process for producing the same Active EP1885899B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR20050037183 2005-05-03
KR1020050130132A KR100742819B1 (en) 2005-05-03 2005-12-26 Cold rolled steel sheet having reduced plane anisotropy and process for producing the same
KR1020050130131A KR100742818B1 (en) 2005-05-03 2005-12-26 Cold rolled steel sheet having good formability and process for producing the same
KR1020050130130A KR100723216B1 (en) 2005-05-03 2005-12-26 Cold rolled steel sheet having increased plastic anisotropy and process for producing the same
KR1020050129243A KR100723158B1 (en) 2005-05-03 2005-12-26 Cold rolled steel sheet having good formability and process for producing the same
PCT/KR2006/001669 WO2006118424A1 (en) 2005-05-03 2006-05-03 Cold rolled steel sheet having high yield ratio and less anisotropy, process for producing the same

Publications (3)

Publication Number Publication Date
EP1885899A1 EP1885899A1 (en) 2008-02-13
EP1885899A4 true EP1885899A4 (en) 2010-12-29
EP1885899B1 EP1885899B1 (en) 2021-08-11

Family

ID=37308182

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06732896.3A Active EP1885899B1 (en) 2005-05-03 2006-05-03 Cold rolled steel sheet having high yield ratio and less anisotropy, process for producing the same

Country Status (2)

Country Link
EP (1) EP1885899B1 (en)
WO (1) WO2006118424A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070038730A (en) 2005-10-06 2007-04-11 주식회사 포스코 The precipitation hardening cold rolled steel sheet having excellent yield ratios, and the method for manufacturing the same
CN115058572B (en) * 2022-06-13 2023-07-04 北京科技大学 Stainless steel/carbon steel layered composite board added with intermediate layer and preparation method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0386758A1 (en) * 1989-03-10 1990-09-12 Kawasaki Steel Corporation Steel sheets for porcelain enameling and method of producing the same
EP0792942A1 (en) * 1996-02-29 1997-09-03 Kawasaki Steel Corporation Steel, steel sheet having excellent workability and method of producing the same by electric furnace-vacuum degassing process
DE19628714C1 (en) * 1996-07-08 1997-12-04 Mannesmann Ag Process for the production of precision steel tubes
EP1136575A1 (en) * 1999-08-10 2001-09-26 Nkk Corporation Method of producing cold rolled steel sheet
US20040055672A1 (en) * 2000-05-26 2004-03-25 Kawasaki Steel Corporation, A Corporation Of Japan Cold rolled steel sheet and galvanized steel sheet having strain age hardenability and method of producing the same
US20040168753A1 (en) * 2000-06-20 2004-09-02 Nkk Corporation Steel sheet and method for manufacturing the same
WO2005045085A1 (en) * 2003-11-10 2005-05-19 Posco Cold rolled steel sheet having aging resistance and superior formability, and process for producing the same
WO2005061748A1 (en) * 2003-12-23 2005-07-07 Posco Bake-hardenable cold rolled steel sheet having excellent formability, and method of manufacturing the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5967322A (en) * 1982-10-08 1984-04-17 Kawasaki Steel Corp Manufacture of cold rolled steel plate for deep drawing
US5200005A (en) * 1991-02-08 1993-04-06 Mcgill University Interstitial free steels and method thereof
JP2003041342A (en) * 2002-05-29 2003-02-13 Nkk Corp Cold rolled steel sheet superior in stamping property

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0386758A1 (en) * 1989-03-10 1990-09-12 Kawasaki Steel Corporation Steel sheets for porcelain enameling and method of producing the same
EP0792942A1 (en) * 1996-02-29 1997-09-03 Kawasaki Steel Corporation Steel, steel sheet having excellent workability and method of producing the same by electric furnace-vacuum degassing process
DE19628714C1 (en) * 1996-07-08 1997-12-04 Mannesmann Ag Process for the production of precision steel tubes
EP1136575A1 (en) * 1999-08-10 2001-09-26 Nkk Corporation Method of producing cold rolled steel sheet
US20040055672A1 (en) * 2000-05-26 2004-03-25 Kawasaki Steel Corporation, A Corporation Of Japan Cold rolled steel sheet and galvanized steel sheet having strain age hardenability and method of producing the same
US20040168753A1 (en) * 2000-06-20 2004-09-02 Nkk Corporation Steel sheet and method for manufacturing the same
WO2005045085A1 (en) * 2003-11-10 2005-05-19 Posco Cold rolled steel sheet having aging resistance and superior formability, and process for producing the same
WO2005061748A1 (en) * 2003-12-23 2005-07-07 Posco Bake-hardenable cold rolled steel sheet having excellent formability, and method of manufacturing the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006118424A1 *

Also Published As

Publication number Publication date
WO2006118424A1 (en) 2006-11-09
EP1885899A1 (en) 2008-02-13
EP1885899B1 (en) 2021-08-11

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