TWI346141B - 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
TWI346141B
TWI346141B TW095115562A TW95115562A TWI346141B TW I346141 B TWI346141 B TW I346141B TW 095115562 A TW095115562 A TW 095115562A TW 95115562 A TW95115562 A TW 95115562A TW I346141 B TWI346141 B TW I346141B
Authority
TW
Taiwan
Prior art keywords
producing
steel sheet
same
rolled steel
high yield
Prior art date
Application number
TW095115562A
Other languages
Chinese (zh)
Other versions
TW200702455A (en
Inventor
Jeong Bong Yoon
Noi Ha Cho
Jin Hee Chung
Man Young Park
Kwang Geun Chin
Sang Ho Han
Sung Il Kim
Ho Seok Kim
Original Assignee
Posco
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 filed Critical Posco
Publication of TW200702455A publication Critical patent/TW200702455A/en
Application granted granted Critical
Publication of TWI346141B publication Critical patent/TWI346141B/en

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
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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
    • 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
    • C22C38/02—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
    • 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
    • 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
    • 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
TW095115562A 2005-05-03 2006-05-02 Cold rolled steel sheet having superior formability and high yield ratio, process for producing the same TWI346141B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
KR20050037183 2005-05-03
KR1020050129235A KR100723165B1 (en) 2005-05-03 2005-12-26 Cold rolled steel sheet having increased plastic anisotropy 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
KR1020050129236A KR100723164B1 (en) 2005-05-03 2005-12-26 Cold rolled steel sheet having good formability and process for producing the same

Publications (2)

Publication Number Publication Date
TW200702455A TW200702455A (en) 2007-01-16
TWI346141B true TWI346141B (en) 2011-08-01

Family

ID=37652804

Family Applications (3)

Application Number Title Priority Date Filing Date
TW095115562A TWI346141B (en) 2005-05-03 2006-05-02 Cold rolled steel sheet having superior formability and high yield ratio, process for producing the same
TW095115563A TWI327171B (en) 2005-05-03 2006-05-02 Cold roller steel sheet having superior formability, process for producing the same
TW095115565A TWI309263B (en) 2005-05-03 2006-05-02 Cold rolled steel sheet having high yield ratio and less anisotropy, process for producing the same

Family Applications After (2)

Application Number Title Priority Date Filing Date
TW095115563A TWI327171B (en) 2005-05-03 2006-05-02 Cold roller steel sheet having superior formability, process for producing the same
TW095115565A TWI309263B (en) 2005-05-03 2006-05-02 Cold rolled steel sheet having high yield ratio and less anisotropy, process for producing the same

Country Status (6)

Country Link
US (2) US20090126837A1 (en)
JP (3) JP4954981B2 (en)
KR (42) KR100723158B1 (en)
CN (3) CN101171355A (en)
MX (3) MX2007013676A (en)
TW (3) TWI346141B (en)

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KR100775338B1 (en) * 2006-11-21 2007-11-08 주식회사 포스코 Cold rolled steel sheet having high yield ratio and excellent formability and the method for manufacturing the same
KR100957960B1 (en) * 2007-12-26 2010-05-17 주식회사 포스코 Cold rolled steel sheet having good formability and surface quality and process for producing the same
KR101030898B1 (en) * 2008-08-28 2011-04-22 현대제철 주식회사 solid carbon/nitrogen composition bake hardenable steel sheet, and method for producing the same
CN101348884B (en) * 2008-09-11 2010-05-12 北京科技大学 440MPa grade niobium-containing high-strength IF steel and manufacturing method thereof
JP5272714B2 (en) * 2008-12-24 2013-08-28 Ｊｆｅスチール株式会社 Manufacturing method of steel plate for can manufacturing
KR101121829B1 (en) * 2009-08-27 2012-03-21 현대제철 주식회사 Hot-rolled steel sheet having high strength, and method for producing the same
CN102747281B (en) * 2012-07-31 2014-10-29 首钢总公司 Production method of batch annealing interstitial-free (IF) steel
CN102925796B (en) * 2012-10-30 2014-07-09 鞍钢股份有限公司 Non-alloyed ultra-low carbon structure cold-rolled sheet and production method thereof
KR101318060B1 (en) 2013-05-09 2013-10-15 현대제철 주식회사 Hot stamping product with advanced toughness and method of manufacturing the same
KR101611762B1 (en) * 2014-12-12 2016-04-14 주식회사 포스코 Cold rolled steel sheet having excellent bendability and crash worthiness and method for manufacturing the same
DE102016110661A1 (en) * 2016-06-09 2017-12-14 Salzgitter Flachstahl Gmbh Process for producing a cold-rolled steel strip from a high-strength, manganese-containing steel
CN110026433B (en) * 2019-03-20 2021-07-23 首钢集团有限公司 Method for improving surface quality of P-containing high-strength IF steel continuous annealing plate
CN114599804B (en) * 2019-11-13 2024-03-29 日本制铁株式会社 Steel material
KR102566353B1 (en) 2021-08-26 2023-08-14 현대제철 주식회사 Cold-rolled steel sheet with excellent plastic anisotropy and strength and method of manufacturing the same

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Also Published As

Publication number Publication date
KR20060115627A (en) 2006-11-09
KR100742932B1 (en) 2007-07-25
KR20060115642A (en) 2006-11-09
KR100742943B1 (en) 2007-07-25
KR20060115311A (en) 2006-11-08
KR20060115623A (en) 2006-11-09
KR100742936B1 (en) 2007-07-25
KR100742937B1 (en) 2007-07-25
US20090126837A1 (en) 2009-05-21
KR100723164B1 (en) 2007-05-30
KR100723160B1 (en) 2007-05-30
JP4954980B2 (en) 2012-06-20
KR20060115645A (en) 2006-11-09
JP4964870B2 (en) 2012-07-04
KR100742955B1 (en) 2007-07-25
KR100742930B1 (en) 2007-07-25
KR100723182B1 (en) 2007-05-29
KR100742918B1 (en) 2007-07-25
KR20060115309A (en) 2006-11-08
KR100742935B1 (en) 2007-07-25
KR100742917B1 (en) 2007-07-25
KR20060115646A (en) 2006-11-09
MX2007013677A (en) 2008-01-28
KR100742949B1 (en) 2007-07-25
KR100742953B1 (en) 2007-07-25
KR100742939B1 (en) 2007-07-25
KR20060115614A (en) 2006-11-09
KR100742948B1 (en) 2007-07-25
KR100742933B1 (en) 2007-07-25
KR20060115315A (en) 2006-11-08
KR20060115647A (en) 2006-11-09
MX2007013676A (en) 2008-01-28
KR100723165B1 (en) 2007-05-30
US20080185077A1 (en) 2008-08-07
KR20060115313A (en) 2006-11-08
KR100742947B1 (en) 2007-07-25
KR20060115621A (en) 2006-11-09
KR100742945B1 (en) 2007-07-25
KR100742926B1 (en) 2007-07-25
KR20060115641A (en) 2006-11-09
KR100742819B1 (en) 2007-07-25
KR20060115312A (en) 2006-11-08
KR20060115643A (en) 2006-11-09
KR100742954B1 (en) 2007-07-25
KR20060115625A (en) 2006-11-09
KR100723159B1 (en) 2007-05-30
KR20060115629A (en) 2006-11-09
KR20060115628A (en) 2006-11-09
KR100742927B1 (en) 2007-07-25
KR20060115320A (en) 2006-11-08
KR20060115316A (en) 2006-11-08
KR20060115616A (en) 2006-11-09
KR20060115637A (en) 2006-11-09
KR20060115638A (en) 2006-11-09
KR20060115632A (en) 2006-11-09
KR100742938B1 (en) 2007-07-25
CN101184858B (en) 2010-12-08
KR20060115631A (en) 2006-11-09
JP4954981B2 (en) 2012-06-20
KR20060115626A (en) 2006-11-09
KR20060115633A (en) 2006-11-09
KR20060115634A (en) 2006-11-09
KR100723158B1 (en) 2007-05-30
KR20060115644A (en) 2006-11-09
KR100742944B1 (en) 2007-07-25
JP2008540825A (en) 2008-11-20
TWI327171B (en) 2010-07-11
MX2007013675A (en) 2008-01-28
KR100742951B1 (en) 2007-07-25
CN101184858A (en) 2008-05-21
CN100557058C (en) 2009-11-04
JP2008540826A (en) 2008-11-20
KR100742919B1 (en) 2007-07-25
TWI309263B (en) 2009-05-01
KR100742931B1 (en) 2007-07-25
KR100742952B1 (en) 2007-07-25
KR100742941B1 (en) 2007-07-25
KR100742940B1 (en) 2007-07-25
KR20060115636A (en) 2006-11-09
KR20060115615A (en) 2006-11-09
CN101171356A (en) 2008-04-30
KR20060115310A (en) 2006-11-08
KR20060115319A (en) 2006-11-08
KR20060115314A (en) 2006-11-08
TW200702444A (en) 2007-01-16
KR100742818B1 (en) 2007-07-25
KR20060115630A (en) 2006-11-09
KR100723216B1 (en) 2007-05-29
KR100742934B1 (en) 2007-07-25
KR20060115640A (en) 2006-11-09
KR100723180B1 (en) 2007-05-30
KR20060115635A (en) 2006-11-09
KR20060115622A (en) 2006-11-09
KR100742929B1 (en) 2007-07-25
KR100723163B1 (en) 2007-05-30
KR20060115317A (en) 2006-11-08
KR100742950B1 (en) 2007-07-25
KR20060115624A (en) 2006-11-09
CN101171355A (en) 2008-04-30
TW200702456A (en) 2007-01-16
KR20060115318A (en) 2006-11-08
KR20060115639A (en) 2006-11-09
KR100723181B1 (en) 2007-05-29
TW200702455A (en) 2007-01-16
JP2008540827A (en) 2008-11-20

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