EP1637618A4 - High strength thin steel sheet excellent in resistance to delayed fracture after forming and method for preparation thereof, and automobile parts requiring strength manufactured from high strength thin steel sheet - Google Patents

High strength thin steel sheet excellent in resistance to delayed fracture after forming and method for preparation thereof, and automobile parts requiring strength manufactured from high strength thin steel sheet

Info

Publication number: EP1637618A4
Authority: EP; European Patent Office
Prior art keywords: steel sheet; thin steel; high strength; strength thin; preparation
Prior art date: 2003-05-27
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

EP03817075A

Other languages

German (de)

French (fr)

Other versions

EP1637618A1 (en

EP1637618B1 (en

Inventor

Toshiki Nonaka

Nobuhiro Fujita

Hirokazu Taniguchi

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.)

2003-05-27

Filing date

2003-05-27

Publication date

2006-10-18

2003-05-27 Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp

2006-03-22 Publication of EP1637618A1 publication Critical patent/EP1637618A1/en

2006-10-18 Publication of EP1637618A4 publication Critical patent/EP1637618A4/en

2010-07-14 Application granted granted Critical

2010-07-14 Publication of EP1637618B1 publication Critical patent/EP1637618B1/en

2023-05-27 Anticipated expiration legal-status Critical

Status 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
- C22C38/02—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
- 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
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
- 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
- C22C38/14—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
- 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
- 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)
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)

EP03817075A 2003-05-27 2003-05-27 Method for manufacturing high strength steel sheets with excellent resistance to delayed fracture after forming Expired - Lifetime EP1637618B1 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
PCT/JP2003/006617 WO2004106571A1 (en)	2003-05-27	2003-05-27	High strength thin steel sheet excellent in resistance to delayed fracture after forming and method for preparation thereof, and automobile parts requiring strength manufactured from high strength thin steel sheet

Publications (3)

Publication Number	Publication Date
EP1637618A1 EP1637618A1 (en)	2006-03-22
EP1637618A4 true EP1637618A4 (en)	2006-10-18
EP1637618B1 EP1637618B1 (en)	2010-07-14

Family

ID=33485770

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP03817075A Expired - Lifetime EP1637618B1 (en)	2003-05-27	2003-05-27	Method for manufacturing high strength steel sheets with excellent resistance to delayed fracture after forming

Country Status (5)

Country	Link
US (2)	US20070006948A1 (en)
EP (1)	EP1637618B1 (en)
AU (1)	AU2003235443A1 (en)
DE (1)	DE60333400D1 (en)
WO (1)	WO2004106571A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR100884104B1 (en) *	2004-01-14	2009-02-19	신닛뽄세이테쯔 카부시키카이샤	Hot dip zinc plated high strength steel sheet excellent in plating adhesiveness and hole expanding characteristics
JP4510488B2 (en) *	2004-03-11	2010-07-21	新日本製鐵株式会社	Hot-dip galvanized composite high-strength steel sheet excellent in formability and hole expansibility and method for producing the same
JP4476923B2 (en) *	2005-12-15	2010-06-09	株式会社神戸製鋼所	Steel sheet with excellent impact absorption and base metal toughness
JP5214905B2 (en) *	2007-04-17	2013-06-19	株式会社中山製鋼所	High strength hot rolled steel sheet and method for producing the same
EP2216422B1 (en) *	2007-11-22	2012-09-12	Kabushiki Kaisha Kobe Seiko Sho	High-strength cold-rolled steel sheet
CN102031457A (en) *	2010-12-23	2011-04-27	龙南龙钇重稀土科技股份有限公司	Yttrium-containing low-alloy steel plate hammer
EP2843074B1 (en) *	2012-04-23	2018-03-21	Nippon Steel & Sumitomo Metal Corporation	Rail
JP6122109B2 (en) *	2012-07-03	2017-04-26	モジュール−システムホーホーアクチエボラグＭｏｄｕｌ−ＳｙｓｔｅｍＨｈＡｂ	shelf
MX2016016129A (en)	2014-06-06	2017-03-28	Arcelormittal	High strength multiphase galvanized steel sheet, production method and use.
DE102014017274A1 (en) *	2014-11-18	2016-05-19	Salzgitter Flachstahl Gmbh	Highest strength air hardening multiphase steel with excellent processing properties and method of making a strip from this steel
KR101975136B1 (en) *	2015-03-13	2019-05-03	제이에프이 스틸 가부시키가이샤	High-strength cold-rolled steel sheet and method for manufacturing same
WO2016182098A1 (en) *	2015-05-12	2016-11-17	주식회사 포스코	Ultra-high strength hot-rolled steel sheet having excellent bending workability and method for manufacturing same
KR20180016980A (en) *	2015-06-03	2018-02-20	잘쯔기터 플래시슈탈 게엠베하	Deformation-hardened parts made of galvanized steel, method for making the same, and deformation of parts - Method for manufacturing steel strip suitable for hardening
JP6610607B2 (en) *	2017-04-25	2019-11-27	Ｊｆｅスチール株式会社	Method for evaluating delayed fracture characteristics of high strength steel sheets
CN107541659B (en) *	2017-08-30	2019-05-24	宁波亿润汽车零部件有限公司	A kind of air admission fork pipe holder
KR102131537B1 (en) *	2018-11-30	2020-07-08	주식회사 포스코	Steel plate for pressure vessel having excellent hydrogen induced cracking resistance and method of manufacturing the same
CN109371329B (en) *	2018-12-24	2021-02-02	黄石华中模具材料研究所	High-temperature-resistant artificial crystal forming die steel material and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH10265890A (en) *	1997-03-26	1998-10-06	Nippon Steel Corp	Thick steel plate excellent in toughness of heat affected zone
JPH1171629A (en) *	1997-08-29	1999-03-16	Nippon Steel Corp	Thick steel plate for structural purpose excellent in strength and toughness
JP2000026934A (en) *	1998-05-01	2000-01-25	Nippon Steel Corp	Steel excellent in delayed fracture characteristic and its production
EP1143023A1 (en) *	1999-10-12	2001-10-10	Nippon Steel Corporation	Steel for welded structure purpose exhibiting no dependence of haz toughness on heat input and method for producing the same
JP2001288531A (en) *	2000-04-05	2001-10-19	Nippon Steel Corp	Steel for machine structure in which coarsening of crystal grain is suppressed

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR100514119B1 (en) *	2000-02-28	2005-09-13	신닛뽄세이테쯔 카부시키카이샤	Steel pipe having excellent formability and method for production thereof
JP3958921B2 (en) *	2000-08-04	2007-08-15	新日本製鐵株式会社	Cold-rolled steel sheet excellent in paint bake-hardening performance and room temperature aging resistance and method for producing the same
JP3548519B2 (en) *	2000-12-01	2004-07-28	新日本製鐵株式会社	High strength steel with excellent hydrogen embrittlement resistance
KR100849974B1 (en) *	2000-12-29	2008-08-01	니폰 스틸 코포레이션	High strength hot-dip galvanized or galvannealed steel sheet having improved plating adhesion and press formability and process for producing the same
AU2002304255A1 (en) *	2001-06-06	2002-12-23	Nippon Steel Corporation	High-strength hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having fatigue resistance, corrosion resistance, ductility and plating adhesion, after severe deformation, and a method of producing the same
JP3924159B2 (en) *	2001-11-28	2007-06-06	新日本製鐵株式会社	High-strength thin steel sheet with excellent delayed fracture resistance after forming, its manufacturing method, and automotive strength parts made from high-strength thin steel sheet

2003
- 2003-05-27 DE DE60333400T patent/DE60333400D1/en not_active Expired - Lifetime
- 2003-05-27 AU AU2003235443A patent/AU2003235443A1/en not_active Abandoned
- 2003-05-27 EP EP03817075A patent/EP1637618B1/en not_active Expired - Lifetime
- 2003-05-27 US US10/558,579 patent/US20070006948A1/en not_active Abandoned
- 2003-05-27 WO PCT/JP2003/006617 patent/WO2004106571A1/en active Application Filing
2010
- 2010-12-07 US US12/928,310 patent/US20110120598A1/en not_active Abandoned

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH10265890A (en) *	1997-03-26	1998-10-06	Nippon Steel Corp	Thick steel plate excellent in toughness of heat affected zone
JPH1171629A (en) *	1997-08-29	1999-03-16	Nippon Steel Corp	Thick steel plate for structural purpose excellent in strength and toughness
JP2000026934A (en) *	1998-05-01	2000-01-25	Nippon Steel Corp	Steel excellent in delayed fracture characteristic and its production
EP1143023A1 (en) *	1999-10-12	2001-10-10	Nippon Steel Corporation	Steel for welded structure purpose exhibiting no dependence of haz toughness on heat input and method for producing the same
JP2001288531A (en) *	2000-04-05	2001-10-19	Nippon Steel Corp	Steel for machine structure in which coarsening of crystal grain is suppressed

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 01 29 January 1999 (1999-01-29) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 08 30 June 1999 (1999-06-30) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 04 31 August 2000 (2000-08-31) *
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 02 2 April 2002 (2002-04-02) *
See also references of WO2004106571A1 *

Also Published As

Publication number	Publication date
DE60333400D1 (en)	2010-08-26
EP1637618A1 (en)	2006-03-22
WO2004106571A1 (en)	2004-12-09
EP1637618B1 (en)	2010-07-14
US20110120598A1 (en)	2011-05-26
AU2003235443A1 (en)	2005-01-21
US20070006948A1 (en)	2007-01-11

Legal Events

Date	Code	Title	Description
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2006-08-30	RBV	Designated contracting states (corrected)	Designated state(s): BE DE FR GB
2006-10-18	A4	Supplementary search report drawn up and despatched	Effective date: 20060915
2007-02-28	17Q	First examination report despatched	Effective date: 20070125
2010-02-06	GRAP	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOSNIGR1
2010-03-10	RTI1	Title (correction)	Free format text: METHOD FOR MANUFACTURING HIGH STRENGTH STEEL SHEETS WITH EXCELLENT RESISTANCE TO DELAYED FRACTURE AFTER FORMING
2010-05-07	GRAS	Grant fee paid	Free format text: ORIGINAL CODE: EPIDOSNIGR3
2010-06-11	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
2010-06-16	RIN1	Information on inventor provided before grant (corrected)	Inventor name: TANIGUCHI, HIROKAZU Inventor name: FUJITA, NOBUHIRO Inventor name: NONAKA, TOSHIKI
2010-06-30	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: NIPPON STEEL CORPORATION
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