EP2048254A4 - HIGH STRENGTH STEEL SHEET EXCELLENT IN TERMS OF EDGE STRETCHABILITY AND FATIGUE - Google Patents

HIGH STRENGTH STEEL SHEET EXCELLENT IN TERMS OF EDGE STRETCHABILITY AND FATIGUE

Info

Publication number: EP2048254A4
Authority: EP; European Patent Office
Prior art keywords: stretchability; fatigue; terms; edge; steel sheet
Prior art date: 2006-07-14
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

EP07738099A

Other languages

German (de)

French (fr)

Other versions

EP2048254A1 (en

EP2048254B1 (en

Inventor

Katsuhiro Sasai

Wataru Ohashi

Kenichi Yamamoto

Kaoru Kawasaki

Hiroshi Harada

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.)

Nippon Steel Corp

Original Assignee

Nippon 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.)

2006-07-14

Filing date

2007-03-02

Publication date

2012-11-07

2006-07-14 Priority claimed from JP2006193893A external-priority patent/JP4901346B2/en

2007-03-02 Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp

2009-04-15 Publication of EP2048254A1 publication Critical patent/EP2048254A1/en

2012-11-07 Publication of EP2048254A4 publication Critical patent/EP2048254A4/en

2020-08-19 Application granted granted Critical

2020-08-19 Publication of EP2048254B1 publication Critical patent/EP2048254B1/en

Status Active legal-status Critical Current

2027-03-02 Anticipated expiration legal-status Critical

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
- C22C38/02—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
- 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
- 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
- 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
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/002—Bainite

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)

EP07738099.6A 2006-07-14 2007-03-02 High strength steel plate superior in stretch flange formability and fatigue characteristics Active EP2048254B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP2006193893A JP4901346B2 (en)	2005-11-07	2006-07-14	High-strength steel sheet with excellent stretch flangeability and fatigue characteristics
PCT/JP2007/054614 WO2008007477A1 (en)	2006-07-14	2007-03-02	High-strength steel sheet excellent in stretch flangeability and fatigue property

Publications (3)

Publication Number	Publication Date
EP2048254A1 EP2048254A1 (en)	2009-04-15
EP2048254A4 true EP2048254A4 (en)	2012-11-07
EP2048254B1 EP2048254B1 (en)	2020-08-19

Family

ID=38923047

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP07738099.6A Active EP2048254B1 (en)	2006-07-14	2007-03-02	High strength steel plate superior in stretch flange formability and fatigue characteristics

Country Status (8)

Country	Link
US (1)	US20090317285A1 (en)
EP (1)	EP2048254B1 (en)
KR (1)	KR20090018167A (en)
CN (1)	CN101490295B (en)
AU (1)	AU2007273767B2 (en)
CA (1)	CA2657587C (en)
TW (1)	TWI424069B (en)
WO (1)	WO2008007477A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP4431185B2 (en)	2008-06-13	2010-03-10	新日本製鐵株式会社	High-strength steel sheet with excellent stretch flangeability and fatigue characteristics and method for producing the molten steel
KR101122840B1 (en) *	2009-03-27	2012-03-21	신닛뽄세이테쯔 카부시키카이샤	Carbon steel sheet having excellent carburization properties, and method for producing same
KR101458683B1 (en) *	2010-05-10	2014-11-05	신닛테츠스미킨 카부시키카이샤	High-strength steel sheet and method for producing same
JP5765080B2 (en) *	2010-06-25	2015-08-19	Ｊｆｅスチール株式会社	High-strength hot-rolled steel sheet excellent in stretch flangeability and manufacturing method thereof
EP2592169B1 (en) *	2011-02-24	2018-09-19	Nippon Steel & Sumitomo Metal Corporation	High-strength steel sheet exhibiting superior stretch-flange formability and bendability, and method of preparing ingot steel
BR112014001589B1 (en) *	2011-07-29	2019-01-08	Nippon Steel & Sumitomo Metal Corp	high strength steel sheet and high strength galvanized steel sheet excellent in conformability and production methods thereof
CA3000554A1 (en) *	2015-09-22	2017-03-30	Tata Steel Ijmuiden B.V.	A hot-rolled high-strength roll-formable steel sheet with excellent stretch-flange formability and a method of producing said steel
CN107400824A (en) *	2016-05-18	2017-11-28	鞍钢股份有限公司	High-strength steel for automobile wheels with excellent stretch flangeability and production method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2004256906A (en) *	2003-02-28	2004-09-16	Nippon Steel Corp	High strength steel sheet excellent in stretch flange formability and method for producing the same
JP2005307301A (en) *	2004-04-23	2005-11-04	Nippon Steel Corp	High strength steel plate with excellent stretch flangeability
JP2006070302A (en) *	2004-08-31	2006-03-16	Nippon Steel Corp	High-strength hot-rolled steel sheet with excellent stretch flangeability and fatigue characteristics

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2287519A1 (en) *	1974-10-07	1976-05-07	Kobe Steel Ltd	Weldable structural steel - which is resistant to embrittlement in the heat affected zone
JP3619359B2 (en)	1998-01-19	2005-02-09	新日本製鐵株式会社	Composite structure high-strength cold-rolled steel sheet with excellent fatigue characteristics and method for producing the same
JP4258934B2 (en)	2000-01-17	2009-04-30	Ｊｆｅスチール株式会社	High-strength hot-rolled steel sheet excellent in workability and fatigue characteristics and method for producing the same
JP3650601B2 (en) *	2001-12-07	2005-05-25	新日本製鐵株式会社	High-strength hot-rolled steel sheet excellent in stretch flangeability and fatigue characteristics and method for producing the same
JP4430284B2 (en) *	2002-07-23	2010-03-10	新日本製鐵株式会社	Steel material with few alumina clusters
JP4105974B2 (en) *	2003-04-16	2008-06-25	新日本製鐵株式会社	High-strength hot-rolled steel sheet excellent in fatigue characteristics and stretch flangeability of punched end face, and method for producing the same
JP2005256115A (en) *	2004-03-12	2005-09-22	Nippon Steel Corp	High-strength hot-rolled steel sheet with excellent stretch flangeability and fatigue characteristics
JP4862266B2 (en) *	2004-03-25	2012-01-25	Ｊｆｅスチール株式会社	Manufacturing method of thick-walled low yield ratio high-tensile steel sheet

2007
- 2007-03-02 CA CA2657587A patent/CA2657587C/en not_active Expired - Fee Related
- 2007-03-02 KR KR1020087031704A patent/KR20090018167A/en not_active Ceased
- 2007-03-02 US US12/373,570 patent/US20090317285A1/en not_active Abandoned
- 2007-03-02 AU AU2007273767A patent/AU2007273767B2/en not_active Ceased
- 2007-03-02 CN CN2007800268244A patent/CN101490295B/en active Active
- 2007-03-02 WO PCT/JP2007/054614 patent/WO2008007477A1/en not_active Ceased
- 2007-03-02 EP EP07738099.6A patent/EP2048254B1/en active Active
- 2007-03-06 TW TW096107646A patent/TWI424069B/en not_active IP Right Cessation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2004256906A (en) *	2003-02-28	2004-09-16	Nippon Steel Corp	High strength steel sheet excellent in stretch flange formability and method for producing the same
JP2005307301A (en) *	2004-04-23	2005-11-04	Nippon Steel Corp	High strength steel plate with excellent stretch flangeability
JP2006070302A (en) *	2004-08-31	2006-03-16	Nippon Steel Corp	High-strength hot-rolled steel sheet with excellent stretch flangeability and fatigue characteristics

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2008007477A1 *

Also Published As

Publication number	Publication date
KR20090018167A (en)	2009-02-19
AU2007273767A1 (en)	2008-01-17
CA2657587A1 (en)	2008-01-17
CN101490295B (en)	2012-09-19
CA2657587C (en)	2013-11-26
TW200804607A (en)	2008-01-16
CN101490295A (en)	2009-07-22
EP2048254A1 (en)	2009-04-15
AU2007273767B2 (en)	2010-08-12
EP2048254B1 (en)	2020-08-19
TWI424069B (en)	2014-01-21
WO2008007477A1 (en)	2008-01-17
US20090317285A1 (en)	2009-12-24

Publication	Publication Date	Title
EP2048254A4 (en)	2012-11-07	HIGH STRENGTH STEEL SHEET EXCELLENT IN TERMS OF EDGE STRETCHABILITY AND FATIGUE
EP2180075A4 (en)	2012-07-04	HIGH STRENGTH STEEL SHEET HAVING EXCELLENT FLEXIBILITY AND EXCELLENT FATIGUE RESISTANCE
EP2267175A4 (en)	2012-01-25	HOT-ROLLED STEEL SHEET HAVING EXCELLENT FATIGUE PROPERTIES AND EXCELLENT BOMB EDGE FORMABILITY AND METHOD FOR MANUFACTURING THE HOT-ROLLED STEEL SHEET
GB2452230B (en)	2012-02-22	High-strength composite steel sheet having excellent formability and anti-delayed fraction property
GB0900058D0 (en)	2009-02-11	High-strength steel sheet excellent in stretchability, stretch flangeability, and weldability
EP2264206A4 (en)	2011-10-26	HIGH STRENGTH STEEL SHEETS HAVING EXCELLENT BALANCE BETWEEN STIFFABILITY AND DUCTILITY AND EXCELLENT FATIGUE ENDURANCE, ZINC-COATED STEEL SHEETS AND PROCESSES FOR THEIR PRODUCTION
EP2256224A4 (en)	2014-11-19	HIGH STRENGTH GALVANIZED STEEL SHEET, HIGH STRENGTH ALLOY GALVANIZED SHEET AND HIGH STRENGTH COLD LAMINATED STEEL SHEET EXCELLENT IN TERMS OF MOLDING AND WELDABILITY, AND METHOD FOR MANUFACTURING SAME
EP2053139A4 (en)	2011-05-04	Hot-rolled steel sheets excellent both in workability and in strength and toughness after heat treatment and process for production thereof
EP2246455A4 (en)	2013-11-13	HIGH-PURITY FERRITIC STAINLESS STEEL EXCELLENT IN TERMS OF CORROSION RESISTANCE AND SHAPEABILITY AND METHOD FOR THE PRODUCTION THEREOF
GB2456981B (en)	2011-10-19	Composite made of two steel sheets
EP2098309A4 (en)	2013-01-09	COLD ROLLING METHOD OF STEEL BAND AND METHOD OF MANUFACTURING COLD LAMINATED STEEL SHEET HAVING HIGH STRENGTH
EP2182085A4 (en)	2016-03-16	FERRITIC STAINLESS STEEL PLATE HAVING EXCELLENT MATRIX CUTTING CAPABILITY AND METHOD OF MANUFACTURING THE SAME
HUE043693T2 (en)	2019-09-30	Steel with high mechanical strength and wear resistance
PL2821516T3 (en)	2019-07-31	Bake-hardening hot-rolled steel sheet with excellent workability and method for manufacturing the same
EP2097548A4 (en)	2010-02-24	High manganese high strength steel sheets with excellent crashworthiness, and method for manufacturing of it
GB0618057D0 (en)	2006-10-25	Improvements in and relating to scanning confocal microscopy
PT2084314E (en)	2015-02-12	Carbon fibers having improved strength and modulus
EP1811048A4 (en)	2011-06-29	HIGH-AL STEEL SHEET WITH EXCELLENT MACHINABILITY AND METHOD OF MANUFACTURING THE SAME
EP2290116A4 (en)	2011-05-25	THICK STEEL SHEET HAVING HIGH STRENGTH AND METHOD OF MANUFACTURING THE SAME
EP2343390A4 (en)	2014-06-25	PERLITE RAIL HAVING SUPERIOR ABRASION RESISTANCE AND EXCELLENT TENACITY
EP2058413A4 (en)	2016-04-20	FERRITIC STAINLESS STEEL SHEET HAVING EXCELLENT HEAT RESISTANCE
EP2025769A4 (en)	2010-08-18	HIGH CARBON STEEL WIRE AND HIGH DUCTILITY
IL180733A0 (en)	2007-06-03	Apolipoprotein a1 mimetics and uses thereof
PL1917375T3 (en)	2017-01-31	Steel alloy and tools or components manufactured out of the steel alloy
BRPI0907853A2 (en)	2015-07-21	Thick gauge sheet steel with superior high strength in weldability and having tensile strength of 780 mpa or more and production method thereof

Legal Events

Date	Code	Title	Description
2009-03-13	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
2009-04-15	17P	Request for examination filed	Effective date: 20090211
2009-04-15	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
2009-04-15	AX	Request for extension of the european patent	Extension state: AL BA HR MK RS
2009-09-02	DAX	Request for extension of the european patent (deleted)
2009-09-02	RBV	Designated contracting states (corrected)	Designated state(s): DE FR GB IT
2012-11-07	A4	Supplementary search report drawn up and despatched	Effective date: 20121009
2012-11-07	RIC1	Information provided on ipc code assigned before grant	Ipc: C21D 9/46 20060101ALI20120928BHEP Ipc: C22C 38/14 20060101ALI20120928BHEP Ipc: C22C 38/00 20060101AFI20120928BHEP Ipc: C22C 38/38 20060101ALI20120928BHEP
2013-01-23	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: NIPPON STEEL & SUMITOMO METAL CORPORATION
2017-05-19	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: EXAMINATION IS IN PROGRESS
2017-06-21	17Q	First examination report despatched	Effective date: 20170517
2019-07-03	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: NIPPON STEEL CORPORATION
2020-02-23	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2020-02-23	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: GRANT OF PATENT IS INTENDED
2020-03-25	INTG	Intention to grant announced	Effective date: 20200224
2020-07-07	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2020-07-17	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
2020-07-17	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE PATENT HAS BEEN GRANTED
2020-08-19	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR GB IT
2020-08-19	REG	Reference to a national code	Ref country code: GB Ref legal event code: FG4D
2020-09-03	REG	Reference to a national code	Ref country code: DE Ref legal event code: R096 Ref document number: 602007060559 Country of ref document: DE
2021-05-20	REG	Reference to a national code	Ref country code: DE Ref legal event code: R097 Ref document number: 602007060559 Country of ref document: DE
2021-06-25	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
2021-06-25	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
2021-07-28	26N	No opposition filed	Effective date: 20210520
2021-11-24	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20210302
2022-01-31	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: 20210302
2025-04-11	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 20250128 Year of fee payment: 19
2025-04-25	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 20250210 Year of fee payment: 19
2025-04-28	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: IT Payment date: 20250211 Year of fee payment: 19