EP1888800A4 - Cold rolled steel sheet having superior formability and high yield ratio, process for producing the same - Google Patents

Cold rolled steel sheet having superior formability and high yield ratio, process for producing the same

Info

Publication number
EP1888800A4
EP1888800A4 EP06732897A EP06732897A EP1888800A4 EP 1888800 A4 EP1888800 A4 EP 1888800A4 EP 06732897 A EP06732897 A EP 06732897A EP 06732897 A EP06732897 A EP 06732897A EP 1888800 A4 EP1888800 A4 EP 1888800A4
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
EP06732897A
Other languages
German (de)
French (fr)
Other versions
EP1888800B1 (en
EP1888800A1 (en
Inventor
Man-Young Park
Jin-Hee Chung
Noi-Ha Cho
Jeong-Bong Yoon
Kwang-Geun Chin
Ho-Seok Kim
Sung-Il Kim
Sang-Ho Han
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 KR1020050129236A external-priority patent/KR100723164B1/en
Application filed by Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP1888800A1 publication Critical patent/EP1888800A1/en
Publication of EP1888800A4 publication Critical patent/EP1888800A4/en
Application granted granted Critical
Publication of EP1888800B1 publication Critical patent/EP1888800B1/en
Active 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
    • C22C38/60—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
    • C21D11/00—Process control or regulation for heat treatments
    • 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
    • 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
    • C22C38/002—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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
EP06732897.1A 2005-05-03 2006-05-03 Cold rolled steel sheet having superior formability and high yield ratio, process for producing the same Active EP1888800B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR20050037183 2005-05-03
KR1020050129236A KR100723164B1 (en) 2005-05-03 2005-12-26 Cold rolled steel sheet having good formability and process for producing the same
KR1020050129237A KR100723163B1 (en) 2005-05-03 2005-12-26 Cold rolled steel sheet having reduced plane anisotropy and process for producing the same
KR1020050129239A KR100723181B1 (en) 2005-05-03 2005-12-26 Cold rolled steel sheet having good formability and process for producing the same
KR1020050129235A KR100723165B1 (en) 2005-05-03 2005-12-26 Cold rolled steel sheet having increased plastic anisotropy and process for producing the same
PCT/KR2006/001670 WO2006118425A1 (en) 2005-05-03 2006-05-03 Cold rolled steel sheet having superior formability and high yield ratio, process for producing the same

Publications (3)

Publication Number Publication Date
EP1888800A1 EP1888800A1 (en) 2008-02-20
EP1888800A4 true EP1888800A4 (en) 2011-01-26
EP1888800B1 EP1888800B1 (en) 2018-11-07

Family

ID=37308183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06732897.1A Active EP1888800B1 (en) 2005-05-03 2006-05-03 Cold rolled steel sheet having superior formability and high yield ratio, process for producing the same

Country Status (2)

Country Link
EP (1) EP1888800B1 (en)
WO (1) WO2006118425A1 (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
CN114231845A (en) * 2021-12-03 2022-03-25 本钢板材股份有限公司 Cold-rolled deep-drawing high-strength steel with yield strength of 220Mpa and production method thereof

Citations (7)

* 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
EP1136575A1 (en) * 1999-08-10 2001-09-26 Nkk Corporation Method of producing cold rolled steel sheet
EP1306456A1 (en) * 2000-08-04 2003-05-02 Nippon Steel Corporation Cold rolled steel sheet and hot rolled steel sheet excellent in bake hardenability and resistance to ordinary temperature aging and method for their production
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 (6)

* 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
DE19628714C1 (en) * 1996-07-08 1997-12-04 Mannesmann Ag Process for the production of precision steel tubes
JP3978807B2 (en) 1997-04-09 2007-09-19 Ｊｆｅスチール株式会社 Manufacturing method of paint bake-hardening cold-rolled steel sheet with excellent strain aging resistance
JPH10287954A (en) 1997-04-15 1998-10-27 Kawasaki Steel Corp Coating/baking curable type cold rolled steel sheet excellent in strain aging resistance, and its production
JP2003041342A (en) * 2002-05-29 2003-02-13 Nkk Corp Cold rolled steel sheet superior in stamping property

Patent Citations (7)

* 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
EP1136575A1 (en) * 1999-08-10 2001-09-26 Nkk Corporation Method of producing cold rolled steel sheet
US20040168753A1 (en) * 2000-06-20 2004-09-02 Nkk Corporation Steel sheet and method for manufacturing the same
EP1306456A1 (en) * 2000-08-04 2003-05-02 Nippon Steel Corporation Cold rolled steel sheet and hot rolled steel sheet excellent in bake hardenability and resistance to ordinary temperature aging and method for their production
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 WO2006118425A1 *

Also Published As

Publication number Publication date
EP1888800B1 (en) 2018-11-07
EP1888800A1 (en) 2008-02-20
WO2006118425A1 (en) 2006-11-09

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