EP2060643A4 - Steel excelling in toughness at region affected by welding heat - Google Patents

Steel excelling in toughness at region affected by welding heat

Info

Publication number
EP2060643A4
EP2060643A4 EP06843367A EP06843367A EP2060643A4 EP 2060643 A4 EP2060643 A4 EP 2060643A4 EP 06843367 A EP06843367 A EP 06843367A EP 06843367 A EP06843367 A EP 06843367A EP 2060643 A4 EP2060643 A4 EP 2060643A4
Authority
EP
European Patent Office
Prior art keywords
toughness
welding heat
region affected
excelling
steel
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
EP06843367A
Other languages
German (de)
French (fr)
Other versions
EP2060643B1 (en
EP2060643A1 (en
Inventor
Ryuji Uemori
Yoshiyuki Watanabe
Kazuhiro Fukunaga
Yoshihide Nagai
Rikio Chijiiwa
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 EP2060643A1 publication Critical patent/EP2060643A1/en
Publication of EP2060643A4 publication Critical patent/EP2060643A4/en
Application granted granted Critical
Publication of EP2060643B1 publication Critical patent/EP2060643B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • 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
    • C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
EP06843367A 2006-12-20 2006-12-20 Steel excelling in toughness at region affected by welding heat Active EP2060643B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2006/325984 WO2008075443A1 (en) 2006-12-20 2006-12-20 Steel excelling in toughness at region affected by welding heat

Publications (3)

Publication Number Publication Date
EP2060643A1 EP2060643A1 (en) 2009-05-20
EP2060643A4 true EP2060643A4 (en) 2010-12-01
EP2060643B1 EP2060643B1 (en) 2012-04-18

Family

ID=39536082

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06843367A Active EP2060643B1 (en) 2006-12-20 2006-12-20 Steel excelling in toughness at region affected by welding heat

Country Status (6)

Country Link
EP (1) EP2060643B1 (en)
KR (1) KR100940617B1 (en)
CN (1) CN100594250C (en)
BR (1) BRPI0607524B1 (en)
CA (1) CA2602076C (en)
WO (1) WO2008075443A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4751341B2 (en) * 2007-01-11 2011-08-17 新日本製鐵株式会社 Steel excellent in CTOD of weld heat affected zone and method for producing the same
CA2674197C (en) 2007-12-07 2014-06-10 Nippon Steel Corporation Steel plate superior in ctod properties of weld heat-affected zone and method of production of same
KR101160790B1 (en) 2009-05-19 2012-06-27 신닛뽄세이테쯔 카부시키카이샤 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
KR101360737B1 (en) 2009-12-28 2014-02-07 주식회사 포스코 High strength steel plate having excellent resistance to brittle crack initiation and method for manufacturing the same
JP2011246804A (en) * 2010-04-30 2011-12-08 Nippon Steel Corp Electronic-beam welding joint and steel for electronic-beam welding, and manufacturing method therefor
US9403242B2 (en) 2011-03-24 2016-08-02 Nippon Steel & Sumitomo Metal Corporation Steel for welding

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS624826A (en) * 1985-07-01 1987-01-10 Kobe Steel Ltd Manufacture of high strength and toughness steel plate for line pipe superior in characteristic for stopping unstable ductility fracture propagation
JPH093597A (en) * 1995-06-21 1997-01-07 Nippon Steel Corp Steel for low temperature use excellent in toughness of weld heat affected zone and its production
EP0867520A2 (en) * 1997-03-26 1998-09-30 Sumitomo Metal Industries, Ltd. Welded high-strength steel structures and methods of manufacturing the same
JP2001355039A (en) * 2000-06-09 2001-12-25 Nippon Steel Corp Ultrahigh strength steel tube excellent in low temperature toughness of weld zone and its production method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3522564B2 (en) * 1998-04-17 2004-04-26 新日本製鐵株式会社 Steel plate with excellent toughness in weld heat affected zone
JP4311740B2 (en) * 2004-10-27 2009-08-12 株式会社神戸製鋼所 Thick steel plate with high heat input welded joint toughness
JP4303703B2 (en) * 2005-06-21 2009-07-29 新日本製鐵株式会社 Steel excellent in fracture toughness of weld heat affected zone and method for producing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS624826A (en) * 1985-07-01 1987-01-10 Kobe Steel Ltd Manufacture of high strength and toughness steel plate for line pipe superior in characteristic for stopping unstable ductility fracture propagation
JPH093597A (en) * 1995-06-21 1997-01-07 Nippon Steel Corp Steel for low temperature use excellent in toughness of weld heat affected zone and its production
EP0867520A2 (en) * 1997-03-26 1998-09-30 Sumitomo Metal Industries, Ltd. Welded high-strength steel structures and methods of manufacturing the same
JP2001355039A (en) * 2000-06-09 2001-12-25 Nippon Steel Corp Ultrahigh strength steel tube excellent in low temperature toughness of weld zone and its production method

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PAN Y-T ET AL: "Development of TiOx-bearing steels with superior heat-affected zone toughness", MATERIALS AND DESIGN, LONDON, GB LNKD- DOI:10.1016/0261-3069(94)90027-2, vol. 15, no. 6, 1 January 1994 (1994-01-01), pages 331 - 338, XP024152939, ISSN: 0261-3069, [retrieved on 19940101] *
REIP C P ET AL: "High strength microalloyed CMn(V-Nb-Ti) and CMn(V-Nb) pipeline steels processed through CSP thin-slab technology: Microstructure, precipitation and mechanical properties", MATERIALS SCIENCE AND ENGINEERING A: STRUCTURAL MATERIALS:PROPERTIES, MICROSTRUCTURE & PROCESSING, LAUSANNE, CH LNKD- DOI:10.1016/J.MSEA.2006.03.026, vol. 424, no. 1-2, 25 May 2006 (2006-05-25), pages 307 - 317, XP025098833, ISSN: 0921-5093, [retrieved on 20060525] *
See also references of WO2008075443A1 *

Also Published As

Publication number Publication date
CN100594250C (en) 2010-03-17
KR20080067957A (en) 2008-07-22
CA2602076C (en) 2012-07-10
KR100940617B1 (en) 2010-02-05
WO2008075443A1 (en) 2008-06-26
CN101292055A (en) 2008-10-22
BRPI0607524A2 (en) 2010-03-23
EP2060643B1 (en) 2012-04-18
CA2602076A1 (en) 2008-06-20
EP2060643A1 (en) 2009-05-20
BRPI0607524B1 (en) 2016-01-19

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