EP1143023A4 - Steel for welded structure purpose exhibiting no dependence of haz toughness on heat input and method for producing the same - Google Patents

Steel for welded structure purpose exhibiting no dependence of haz toughness on heat input and method for producing the same

Info

Publication number
EP1143023A4
EP1143023A4 EP00966448A EP00966448A EP1143023A4 EP 1143023 A4 EP1143023 A4 EP 1143023A4 EP 00966448 A EP00966448 A EP 00966448A EP 00966448 A EP00966448 A EP 00966448A EP 1143023 A4 EP1143023 A4 EP 1143023A4
Authority
EP
European Patent Office
Prior art keywords
exhibiting
dependence
steel
producing
same
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
EP00966448A
Other languages
German (de)
French (fr)
Other versions
EP1143023A1 (en
EP1143023B1 (en
Inventor
Ryuji Uemori
Yukio Tomita
Takuya Hara
Shuji Aihara
Naoki Saitoh
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.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of EP1143023A1 publication Critical patent/EP1143023A1/en
Publication of EP1143023A4 publication Critical patent/EP1143023A4/en
Application granted granted Critical
Publication of EP1143023B1 publication Critical patent/EP1143023B1/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
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/06—Deoxidising, e.g. killing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/064—Dephosphorising; Desulfurising
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Heat Treatment Of Steel (AREA)
EP00966448A 1999-10-12 2000-10-12 Steel for welded structure purpose exhibiting no dependence of haz toughness on heat input and method for producing the same Expired - Lifetime EP1143023B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP28941299 1999-10-12
JP28941299 1999-10-12
PCT/JP2000/007091 WO2001027342A1 (en) 1999-10-12 2000-10-12 Steel for welded structure purpose exhibiting no dependence of haz toughness on heat input and method for producing the same

Publications (3)

Publication Number Publication Date
EP1143023A1 EP1143023A1 (en) 2001-10-10
EP1143023A4 true EP1143023A4 (en) 2003-01-02
EP1143023B1 EP1143023B1 (en) 2005-06-01

Family

ID=17742916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00966448A Expired - Lifetime EP1143023B1 (en) 1999-10-12 2000-10-12 Steel for welded structure purpose exhibiting no dependence of haz toughness on heat input and method for producing the same

Country Status (5)

Country Link
EP (1) EP1143023B1 (en)
JP (1) JP3802810B2 (en)
KR (1) KR100430067B1 (en)
DE (1) DE60020522T2 (en)
WO (1) WO2001027342A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4762450B2 (en) * 2001-08-06 2011-08-31 新日本製鐵株式会社 Method for producing high strength welded structural steel with excellent base metal toughness and weld zone HAZ toughness
KR100605717B1 (en) * 2001-12-27 2006-08-01 주식회사 포스코 Steels for Welded Structures With Finely Disperded Oxides of Ti-Al-Zr-Mg
CN100402688C (en) * 2002-09-04 2008-07-16 杰富意钢铁株式会社 Steel material for high heat input welding and its manufacturing method
WO2004106571A1 (en) * 2003-05-27 2004-12-09 Nippon Steel Corporation 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
CA2542762C (en) 2003-10-17 2012-11-13 Nippon Steel Corporation High-strength steel sheets excellent in hole-expandability and ductility
DE102007004147A1 (en) * 2007-01-22 2008-07-24 Heraeus Electro-Nite International N.V. Method for influencing the properties of cast iron and oxygen sensor
CN101578384B (en) 2007-12-07 2011-06-15 新日本制铁株式会社 Steel with weld heat-affected zone having excellent CTOD properties and process for producing the steel
JP4547044B2 (en) * 2008-07-30 2010-09-22 新日本製鐵株式会社 High-strength thick steel material excellent in toughness and weldability, high-strength extra-thick H-shaped steel, and methods for producing them
EP2385149B1 (en) * 2009-05-19 2016-07-06 Nippon Steel & Sumitomo Metal Corporation Steel material for welding and method for producing same
TWI365915B (en) 2009-05-21 2012-06-11 Nippon Steel Corp Steel for welded structure and producing method thereof
US9403242B2 (en) 2011-03-24 2016-08-02 Nippon Steel & Sumitomo Metal Corporation Steel for welding
KR101883588B1 (en) * 2014-04-15 2018-07-30 신닛테츠스미킨 카부시키카이샤 Steel h-beam and method for manufacturing same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03177535A (en) * 1989-12-04 1991-08-01 Nippon Steel Corp Manufacture of low temperature high toughness steel for welding
JPH09310147A (en) * 1996-05-21 1997-12-02 Nippon Steel Corp Steel sheet excellent in heat affected zone toughness
JPH10298705A (en) * 1997-02-19 1998-11-10 Nippon Steel Corp Steel for super heat input welding containing mg
JPH1121613A (en) * 1997-05-07 1999-01-26 Nippon Steel Corp Production of steel excellent in toughness at low temperature and sour resistance

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2940647B2 (en) * 1991-08-14 1999-08-25 新日本製鐵株式会社 Method for producing low-temperature high-toughness steel for welding
JP3752076B2 (en) * 1998-04-15 2006-03-08 新日本製鐵株式会社 Super high heat input welding steel containing Mg

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03177535A (en) * 1989-12-04 1991-08-01 Nippon Steel Corp Manufacture of low temperature high toughness steel for welding
JPH09310147A (en) * 1996-05-21 1997-12-02 Nippon Steel Corp Steel sheet excellent in heat affected zone toughness
JPH10298705A (en) * 1997-02-19 1998-11-10 Nippon Steel Corp Steel for super heat input welding containing mg
JPH1121613A (en) * 1997-05-07 1999-01-26 Nippon Steel Corp Production of steel excellent in toughness at low temperature and sour resistance

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 425 (C - 0879) 29 October 1991 (1991-10-29) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 04 31 March 1998 (1998-03-31) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 02 26 February 1999 (1999-02-26) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 04 30 April 1999 (1999-04-30) *
See also references of WO0127342A1 *

Also Published As

Publication number Publication date
DE60020522D1 (en) 2005-07-07
KR100430067B1 (en) 2004-05-03
JP3802810B2 (en) 2006-07-26
EP1143023A1 (en) 2001-10-10
DE60020522T2 (en) 2005-11-24
KR20010080751A (en) 2001-08-22
WO2001027342A1 (en) 2001-04-19
EP1143023B1 (en) 2005-06-01

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