EP1659191A4 - High tensile strength cold-rolled steel sheet and method for production thereof - Google Patents

High tensile strength cold-rolled steel sheet and method for production thereof

Info

Publication number
EP1659191A4
EP1659191A4 EP04772121A EP04772121A EP1659191A4 EP 1659191 A4 EP1659191 A4 EP 1659191A4 EP 04772121 A EP04772121 A EP 04772121A EP 04772121 A EP04772121 A EP 04772121A EP 1659191 A4 EP1659191 A4 EP 1659191A4
Authority
EP
European Patent Office
Prior art keywords
production
steel sheet
tensile strength
rolled steel
high tensile
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
EP04772121A
Other languages
German (de)
French (fr)
Other versions
EP1659191A1 (en
EP1659191B1 (en
Inventor
Shusaku Takagi
Tetsuo Shimizu
Naoki Nishiyama
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
Application filed by JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP1659191A1 publication Critical patent/EP1659191A1/en
Publication of EP1659191A4 publication Critical patent/EP1659191A4/en
Application granted granted Critical
Publication of EP1659191B1 publication Critical patent/EP1659191B1/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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • 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
    • 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
    • C21D8/0236—Cold rolling

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)
EP04772121.2A 2003-08-26 2004-08-18 High tensile strength cold-rolled steel sheet and method for production thereof Expired - Lifetime EP1659191B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2003301473 2003-08-26
JP2004208834 2004-07-15
PCT/JP2004/012160 WO2005019487A1 (en) 2003-08-26 2004-08-18 High tensile strength cold-rolled steel sheet and method for production thereof

Publications (3)

Publication Number Publication Date
EP1659191A1 EP1659191A1 (en) 2006-05-24
EP1659191A4 true EP1659191A4 (en) 2012-02-29
EP1659191B1 EP1659191B1 (en) 2014-07-30

Family

ID=34220740

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04772121.2A Expired - Lifetime EP1659191B1 (en) 2003-08-26 2004-08-18 High tensile strength cold-rolled steel sheet and method for production thereof

Country Status (5)

Country Link
US (1) US20060231176A1 (en)
EP (1) EP1659191B1 (en)
KR (1) KR20060032139A (en)
CA (1) CA2522607C (en)
WO (1) WO2005019487A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2008211941B2 (en) * 2007-01-31 2011-06-02 Jfe Steel Corporation High tensile strength steel having favorable delayed fracture resistance and method for manufacturing the same
KR101009839B1 (en) * 2008-06-26 2011-01-19 현대제철 주식회사 Method for producing of steel sheet having high-strength and high-formability
KR100958019B1 (en) * 2009-08-31 2010-05-17 현대하이스코 주식회사 Dual phase steel sheet and method for manufacturing the same
KR101410435B1 (en) * 2010-03-31 2014-06-20 신닛테츠스미킨 카부시키카이샤 High-strength hot-dip galvanized steel sheet with excellent formability and process for producing same
FI20115832L (en) * 2011-08-26 2013-02-27 Rautaruukki Oyj Method for manufacturing a steel product with excellent mechanical properties, steel product manufactured with the method and use of strain-hardened steel
JP5370620B1 (en) * 2011-11-15 2013-12-18 Ｊｆｅスチール株式会社 Thin steel plate and manufacturing method thereof
KR101435251B1 (en) * 2012-03-29 2014-08-28 현대제철 주식회사 Method of manufacturing cold-rolled steel sheet
DE102012013113A1 (en) * 2012-06-22 2013-12-24 Salzgitter Flachstahl Gmbh High strength multiphase steel and method of making a strip of this steel having a minimum tensile strength of 580 MPa
CN107190209A (en) * 2017-04-27 2017-09-22 甘肃酒钢集团宏兴钢铁股份有限公司 Low yield strength ratio high tensile hot rolled steel sheet and its production method
CN107190208A (en) * 2017-04-27 2017-09-22 甘肃酒钢集团宏兴钢铁股份有限公司 High-elongation high strength cold rolled steel plate and its production method
KR102638472B1 (en) * 2019-04-11 2024-02-21 닛폰세이테츠 가부시키가이샤 Steel plate and its manufacturing method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH083677A (en) * 1994-06-21 1996-01-09 Kawasaki Steel Corp Automobile steel sheet excellent in impact resistance and its production
EP1193322A1 (en) * 2000-02-29 2002-04-03 Kawasaki Steel Corporation High tensile cold-rolled steel sheet having excellent strain aging hardening properties
JP2002226937A (en) * 2001-02-01 2002-08-14 Kawasaki Steel Corp Cold rolled steel sheet and plated steel sheet capable of increasing strength by heat treatment after forming and method for producing the same
US20030129444A1 (en) * 2000-11-28 2003-07-10 Saiji Matsuoka Composite structure type high tensile strength steel plate, plated plate of composite structure type high tensile strength steel and method for their production
JP2004169180A (en) * 2002-10-31 2004-06-17 Jfe Steel Kk High-tensile-strength cold-rolled steel sheet and method for producing the same
EP1486574A1 (en) * 2002-03-18 2004-12-15 JFE Steel Corporation Process for producing high tensile hot-dip zinc-coated steel sheet of excellent ductility and antifatigue properties

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3370875B2 (en) 1996-11-18 2003-01-27 株式会社神戸製鋼所 High strength steel sheet excellent in impact resistance and method for producing the same
US6319338B1 (en) * 1996-11-28 2001-11-20 Nippon Steel Corporation High-strength steel plate having high dynamic deformation resistance and method of manufacturing the same
JP3253880B2 (en) 1996-12-27 2002-02-04 川崎製鉄株式会社 Hot-rolled high-strength steel sheet excellent in formability and collision resistance, and method for producing the same
JP3039862B1 (en) * 1998-11-10 2000-05-08 川崎製鉄株式会社 Hot-rolled steel sheet for processing with ultra-fine grains
JP2001073064A (en) * 1999-09-01 2001-03-21 Natl Res Inst For Metals Steel material excellent in delayed fracture resistance

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH083677A (en) * 1994-06-21 1996-01-09 Kawasaki Steel Corp Automobile steel sheet excellent in impact resistance and its production
EP1193322A1 (en) * 2000-02-29 2002-04-03 Kawasaki Steel Corporation High tensile cold-rolled steel sheet having excellent strain aging hardening properties
US20030129444A1 (en) * 2000-11-28 2003-07-10 Saiji Matsuoka Composite structure type high tensile strength steel plate, plated plate of composite structure type high tensile strength steel and method for their production
JP2002226937A (en) * 2001-02-01 2002-08-14 Kawasaki Steel Corp Cold rolled steel sheet and plated steel sheet capable of increasing strength by heat treatment after forming and method for producing the same
EP1486574A1 (en) * 2002-03-18 2004-12-15 JFE Steel Corporation Process for producing high tensile hot-dip zinc-coated steel sheet of excellent ductility and antifatigue properties
JP2004169180A (en) * 2002-10-31 2004-06-17 Jfe Steel Kk High-tensile-strength cold-rolled steel sheet and method for producing the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2005019487A1 *

Also Published As

Publication number Publication date
CA2522607C (en) 2010-06-01
KR20060032139A (en) 2006-04-14
EP1659191A1 (en) 2006-05-24
WO2005019487A1 (en) 2005-03-03
CA2522607A1 (en) 2005-03-03
US20060231176A1 (en) 2006-10-19
EP1659191B1 (en) 2014-07-30

Similar Documents

Publication Publication Date Title
EP1473376A4 (en) High strength steel plate and method for production thereof
EP1764423A4 (en) Method for producing high tensile steel sheet
EP1666622A4 (en) High strength steel sheet excellent in deep drawing characteristics and method for production thereof
EP1170390A4 (en) Hot-rolled steel sheet having high tensile strength and method for production thereof
EP1642990A4 (en) High strength steel plate excellent in formability and method for production thereof
EP1932933A4 (en) Dead-soft high-carbon hot-rolled steel sheet and process for producing the same
EP1905851A4 (en) High-carbon hot-rolled steel sheet and process for producing the same
EP1870482A4 (en) High-strength cold-rolled steel sheet excellent in uniform elongation and method for manufacturing same
EP1207213A4 (en) High tensile cold-rolled steel sheet excellent in ductility and in strain aging hardening properties, and method for producing the same
EP1616970A4 (en) High strength hot-rolled steel plate
TWI315744B (en) High strength steel sheet and method for manufacturing the same
EP1818420A4 (en) Grain-oriented electromagnetic steel sheet and process for producing the same
EP1291447A4 (en) Cold-rolled steel sheet having excellent strain aging hardening properties and method for producing the same
EP1365037A4 (en) High strength steel sheet having excellent formability and method for production thereof
EP1191114A4 (en) High tensile hot-rolled steel sheet having excellent strain aging hardening properties and method for producing the same
EP1359235A4 (en) Thin steel sheet and method for production thereof
ZA200600593B (en) Press-hardened component and associated production method
EP1514951A4 (en) High strength cold rolled steel plate and method for production thereof
EP1616971A4 (en) High strength cold rolled steel sheet and method for production thereof
EP1580289A4 (en) Non-oriented magnetic steel sheet and method for production thereof
EP1808505A4 (en) High strength thin steel plate excellent in elongation and bore expanding characteristics and method for production thereof
PL1679386T3 (en) High-strength magnetic steel sheet and worked part therefrom, and process for producing them
EP1338665A4 (en) High tensile hot rolled steel sheet and method for production thereof
ZA200705546B (en) Sheet bending method and sheet
EP1580287A4 (en) Steel excellent in machinability and method for production thereof

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20051115

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE FR GB

A4 Supplementary search report drawn up and despatched

Effective date: 20120131

RIC1 Information provided on ipc code assigned before grant

Ipc: C22C 38/00 20060101AFI20120125BHEP

Ipc: C21D 9/46 20060101ALI20120125BHEP

Ipc: C22C 38/02 20060101ALI20120125BHEP

Ipc: C21D 8/04 20060101ALI20120125BHEP

Ipc: C22C 38/04 20060101ALI20120125BHEP

17Q First examination report despatched

Effective date: 20130117

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20131118

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20140303

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602004045556

Country of ref document: DE

Effective date: 20140911

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602004045556

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20150504

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20190816

Year of fee payment: 16

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200818

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20230703

Year of fee payment: 20

Ref country code: DE

Payment date: 20230627

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 602004045556

Country of ref document: DE