NO20065095L - Hoyfast thick steel plate excellent at low-temperature toughness in heat-treated zone resulting from welding with high heat supply - Google Patents

Hoyfast thick steel plate excellent at low-temperature toughness in heat-treated zone resulting from welding with high heat supply

Info

Publication number
NO20065095L
NO20065095L NO20065095A NO20065095A NO20065095L NO 20065095 L NO20065095 L NO 20065095L NO 20065095 A NO20065095 A NO 20065095A NO 20065095 A NO20065095 A NO 20065095A NO 20065095 L NO20065095 L NO 20065095L
Authority
NO
Norway
Prior art keywords
welding
thick steel
hoyfast
steel plate
low
Prior art date
Application number
NO20065095A
Other languages
Norwegian (no)
Inventor
Toshiei Hasegawa
Jun Otani
Masanori Minagawa
Minoru Ito
Akihiko Kojima
Yoichi Tanaka
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 NO20065095L publication Critical patent/NO20065095L/en

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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/002—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
    • C22C38/005—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
    • C22C38/02—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
    • C22C38/06—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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Metal Rolling (AREA)

Abstract

Foreliggende oppfinnelse tilveiebringer en høy-styrke tykk stålplate som har en platetykkelse på 50 til 80 mm og en strekkfasthet på 490 til 570 MPa som er i stand til å realisere en utmerket HAZ-seighet selv når sveising med en varmetilførsel på 20 til 100 kJ/mm utføres og er kjennetegnet ved å inneholde, i vekt-%, 0,03-0,14% C, 0,30% eller mindre Si, 0,8-2,0% Mn, 0,02% eller mindre P, 0,005% eller mindre S, 0,8-4,0% Ni, 0,003-0,040% Nb, 0,001-0,040% Al, 0,0010-0,0100% N, og 0,005-0,030% Ti, hvor Ni og Mn tilfredsstiller ligning [1], og balansen er jern og uunngåelige forurensninger: Ni/Mn>10xCeq-3 (0,36<Ceq<0,42) [1] hvor, Ceq=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15The present invention provides a high strength thick steel sheet having a sheet thickness of 50 to 80 mm and a tensile strength of 490 to 570 MPa capable of achieving excellent HAZ toughness even when welding with a heat supply of 20 to 100 kJ mm is carried out and is characterized by containing, by weight, 0.03-0.14% C, 0.30% or less Si, 0.8-2.0% Mn, 0.02% or less P, 0.005% or less S, 0.8-4.0% Ni, 0.003-0.040% Nb, 0.001-0.040% Al, 0.0010-0.0100% N, and 0.005-0.030% Ti where Ni and Mn satisfy equation [1], and the balance is iron and inevitable impurities: Ni / Mn> 10xCeq-3 (0.36 <Ceq <0.42) [1] where, Ceq = C + Mn / 6 + (Cr + Mo + V ) / 5 + (Ni + Cu) / 15

NO20065095A 2004-04-07 2006-11-03 Hoyfast thick steel plate excellent at low-temperature toughness in heat-treated zone resulting from welding with high heat supply NO20065095L (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004113278 2004-04-07
JP2005102041A JP4660250B2 (en) 2004-04-07 2005-03-31 Thick high-strength steel sheet with excellent low-temperature toughness in the heat affected zone by high heat input welding
PCT/JP2005/007109 WO2005098068A1 (en) 2004-04-07 2005-04-06 Thick high strength steel plate having excellent low temperature toughness in welding heat affected zone caused by high heat input welding

Publications (1)

Publication Number Publication Date
NO20065095L true NO20065095L (en) 2007-01-03

Family

ID=35125101

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20065095A NO20065095L (en) 2004-04-07 2006-11-03 Hoyfast thick steel plate excellent at low-temperature toughness in heat-treated zone resulting from welding with high heat supply

Country Status (8)

Country Link
US (1) US20070181223A1 (en)
EP (1) EP1736562A4 (en)
JP (1) JP4660250B2 (en)
KR (1) KR100839262B1 (en)
NO (1) NO20065095L (en)
SG (1) SG151274A1 (en)
TW (1) TWI295693B (en)
WO (1) WO2005098068A1 (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4901262B2 (en) * 2006-03-29 2012-03-21 新日本製鐵株式会社 Thick steel plate with excellent toughness of heat affected zone
JP4891836B2 (en) * 2007-05-09 2012-03-07 株式会社神戸製鋼所 Steel plate with excellent toughness of weld heat affected zone in high heat input welding
JP5096088B2 (en) * 2007-09-13 2012-12-12 株式会社神戸製鋼所 Welded joints with excellent toughness and fatigue cracking suppression properties
KR101018159B1 (en) * 2008-05-15 2011-02-28 주식회사 포스코 High-strength steel sheet with excellent low temperature toughness and manufacturing method thereof
ES2402548T3 (en) * 2007-12-04 2013-05-06 Posco Steel sheet with high strength and excellent low temperature hardness and method of manufacturing it
KR100951296B1 (en) * 2007-12-04 2010-04-02 주식회사 포스코 Steel plate for linepipe having high strength and excellent low temperature toughness and manufacturing method of the same
KR101142185B1 (en) * 2007-12-07 2012-05-04 신닛뽄세이테쯔 카부시키카이샤 Steel being excellent in ctod characteristic in welding heat affected zone and a method of producing the same
TWI468529B (en) * 2009-04-27 2015-01-11 China Steel Corp High strength steels and components thereof for high welding heat welding
RU2458174C1 (en) 2009-05-19 2012-08-10 Ниппон Стил Корпорейшн Steel for welded structures and method for its obtaining
TWI365915B (en) * 2009-05-21 2012-06-11 Nippon Steel Corp Steel for welded structure and producing method thereof
JP5273301B2 (en) * 2010-11-22 2013-08-28 新日鐵住金株式会社 Electron beam welding joint and steel for electron beam welding
WO2012070360A1 (en) * 2010-11-22 2012-05-31 新日本製鐵株式会社 Electron-beam welded joint, steel material for electron-beam welding, and manufacturing method therefor
KR20120075274A (en) * 2010-12-28 2012-07-06 주식회사 포스코 High strength steel sheet having ultra low temperature toughness and method for manufacturing the same
JP5612532B2 (en) * 2011-04-26 2014-10-22 株式会社神戸製鋼所 Steel sheet excellent in low temperature toughness and weld joint fracture toughness and method for producing the same
JP5811044B2 (en) * 2012-06-13 2015-11-11 新日鐵住金株式会社 Thick high-strength steel sheet excellent in weldability and weld heat-affected zone toughness and method for producing the same
CN104364405B (en) * 2013-06-13 2016-12-07 新日铁住金株式会社 Welding super high tensile steel plate
JP5713135B1 (en) 2013-11-19 2015-05-07 新日鐵住金株式会社 steel sheet
CN103898418B (en) * 2014-03-07 2016-05-04 舞阳钢铁有限责任公司 Large thickness Ni is low-temperature (low temperature) vessel steel plate and production method thereof
CN103938065B (en) * 2014-04-22 2015-10-28 钢铁研究总院 In a kind of high input energy welding steel, compound adds the method for magnesium titanium
CN105039865B (en) * 2015-08-26 2017-07-14 江苏省沙钢钢铁研究院有限公司 A kind of high-strength high-toughness steel plate and its manufacture method
JP7260780B2 (en) * 2019-06-17 2023-04-19 日本製鉄株式会社 High strength steel plate for high heat input welding
JP7260779B2 (en) * 2019-06-17 2023-04-19 日本製鉄株式会社 High strength steel plate for high heat input welding
CN113186466B (en) * 2021-04-27 2022-05-17 江苏省沙钢钢铁研究院有限公司 Low-temperature steel bar and production method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2760713B2 (en) * 1992-09-24 1998-06-04 新日本製鐵株式会社 Method for producing controlled rolled steel with excellent fire resistance and toughness
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
JP3749616B2 (en) * 1998-03-26 2006-03-01 新日本製鐵株式会社 High-strength steel for welding with excellent toughness of heat affected zone
JPH11293383A (en) * 1998-04-09 1999-10-26 Nippon Steel Corp Thick steel plate minimal in hydrogen induced defect, and its production
EP1221493B1 (en) * 2000-05-09 2005-01-12 Nippon Steel Corporation THICK STEEL PLATE BEING EXCELLENT IN CTOD CHARACTERISTIC IN WELDING HEAT AFFECTED ZONE AND HAVING YIELD STRENGTH OF 460 Mpa OR MORE
JP2003313628A (en) * 2002-04-22 2003-11-06 Nippon Steel Corp Steel product superior in toughness of weld heat- affected zone

Also Published As

Publication number Publication date
SG151274A1 (en) 2009-04-30
KR100839262B1 (en) 2008-06-17
US20070181223A1 (en) 2007-08-09
EP1736562A1 (en) 2006-12-27
JP4660250B2 (en) 2011-03-30
JP2005320624A (en) 2005-11-17
TW200538561A (en) 2005-12-01
WO2005098068A1 (en) 2005-10-20
TWI295693B (en) 2008-04-11
KR20060130700A (en) 2006-12-19
EP1736562A4 (en) 2007-10-10

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