CA2602076A1 - Acier excellent en tenacite de zone affectee par la chaleur d'une soudure - Google Patents

Acier excellent en tenacite de zone affectee par la chaleur d'une soudure Download PDF

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Publication number
CA2602076A1
CA2602076A1 CA002602076A CA2602076A CA2602076A1 CA 2602076 A1 CA2602076 A1 CA 2602076A1 CA 002602076 A CA002602076 A CA 002602076A CA 2602076 A CA2602076 A CA 2602076A CA 2602076 A1 CA2602076 A1 CA 2602076A1
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CA
Canada
Prior art keywords
less
toughness
affected zone
heat affected
weld heat
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
CA002602076A
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English (en)
Other versions
CA2602076C (fr
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 CA2602076A1 publication Critical patent/CA2602076A1/fr
Application granted granted Critical
Publication of CA2602076C publication Critical patent/CA2602076C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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

Abstract

L'invention porte sur un acier excellant par sa dureté dans les zones affectées par la chaleur de la soudure et dont la composition massique est la suivante: 0,02 à 0,06 % de C, 0,05 à 0,30 % de Si, 1,7 à 2,7 % de Mn, 0,015 % ou moins de P, 0,010 % ou moins de S, 0,005 à 0,015 % de Ti, 0,0010 à 0,0045 % de O, 0,0020 à 0,0060 % de N et le solde de Fe et des impuretés inévitables. En ce qui concerne le mélange d'impuretés, la teneur en Al mélangé est limitée à 0,004 % ou moins, celle en Nb mélangé, à 0,003% ou moins, et celle en V mélangé, à 0,030% ou moins, et le CeH de la formule (A) est de 0,04 ou moins. Dans la formule (A): CeH=C+1/4Si-1/24Mn+1/48Cu+1/32Ni+1/0,4Nb+1/2V et chacun des composants C, Si, Mn, Cu, Ni, Nb et V est exprimé en % massique.
CA2602076A 2006-12-20 2006-12-20 Acier excellent en tenacite de zone affectee par la chaleur d'une soudure Active CA2602076C (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2006/325984 WO2008075443A1 (fr) 2006-12-20 2006-12-20 Acier excellant par sa dureté dans les zones affectées par la chaleur de la soudure

Publications (2)

Publication Number Publication Date
CA2602076A1 true CA2602076A1 (fr) 2008-06-20
CA2602076C CA2602076C (fr) 2012-07-10

Family

ID=39536082

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2602076A Active CA2602076C (fr) 2006-12-20 2006-12-20 Acier excellent en tenacite de zone affectee par la chaleur d'une soudure

Country Status (6)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8361248B2 (en) 2007-12-07 2013-01-29 Nippon Steel Corporation Steel superior in CTOD properties of weld heat-affected zone and method of production of same
US8668784B2 (en) 2009-05-19 2014-03-11 Nippon Steel & Sumitomo Metal Corporation Steel for welded structure and producing method thereof
US8920713B2 (en) 2009-05-21 2014-12-30 Nippon Steel & Sumitomo Metal Corporation Steel for welded structure and producing method thereof
US9403242B2 (en) 2011-03-24 2016-08-02 Nippon Steel & Sumitomo Metal Corporation Steel for welding

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4751341B2 (ja) * 2007-01-11 2011-08-17 新日本製鐵株式会社 溶接熱影響部のｃｔｏｄが優れた鋼およびその製造方法
KR101360737B1 (ko) 2009-12-28 2014-02-07 주식회사 포스코 취성 균열 발생 저항성이 우수한 고강도 강판 및 그 제조방법
JP2011246804A (ja) * 2010-04-30 2011-12-08 Nippon Steel Corp 電子ビーム溶接継手及び電子ビーム溶接用鋼材とその製造方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS624826A (ja) * 1985-07-01 1987-01-10 Kobe Steel Ltd 不安定延性破壊伝播停止特性にすぐれた高強度高靭性ラインパイプ用鋼板の製造方法
JPH093597A (ja) * 1995-06-21 1997-01-07 Nippon Steel Corp 溶接熱影響部靱性の優れた低温用鋼材およびその製造方法
CA2231985C (fr) * 1997-03-26 2004-05-25 Sumitomo Metal Industries, Ltd. Description et methodes de fabrication de structures soudees en acier tres resistant
JP3522564B2 (ja) * 1998-04-17 2004-04-26 新日本製鐵株式会社 溶接熱影響部の靱性に優れた鋼板
JP4268317B2 (ja) * 2000-06-09 2009-05-27 新日本製鐵株式会社 溶接部の低温靱性に優れた超高強度鋼管及びその製造方法
JP4311740B2 (ja) * 2004-10-27 2009-08-12 株式会社神戸製鋼所 大入熱溶接継手靭性に優れた厚鋼板
JP4303703B2 (ja) * 2005-06-21 2009-07-29 新日本製鐵株式会社 溶接熱影響部の破壊靭性に優れた鋼及びその製造方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8361248B2 (en) 2007-12-07 2013-01-29 Nippon Steel Corporation Steel superior in CTOD properties of weld heat-affected zone and method of production of same
US8668784B2 (en) 2009-05-19 2014-03-11 Nippon Steel & Sumitomo Metal Corporation Steel for welded structure and producing method thereof
US8920713B2 (en) 2009-05-21 2014-12-30 Nippon Steel & Sumitomo Metal Corporation Steel for welded structure and producing method thereof
US9403242B2 (en) 2011-03-24 2016-08-02 Nippon Steel & Sumitomo Metal Corporation Steel for welding

Also Published As

Publication number Publication date
KR20080067957A (ko) 2008-07-22
EP2060643A1 (fr) 2009-05-20
CA2602076C (fr) 2012-07-10
BRPI0607524B1 (pt) 2016-01-19
WO2008075443A1 (fr) 2008-06-26
EP2060643B1 (fr) 2012-04-18
CN100594250C (zh) 2010-03-17
BRPI0607524A2 (pt) 2010-03-23
KR100940617B1 (ko) 2010-02-05
CN101292055A (zh) 2008-10-22
EP2060643A4 (fr) 2010-12-01

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