TW200641152A - High tensile refractory steel having excellent weldability and excellent sectility for gas cutting and production method for same - Google Patents

High tensile refractory steel having excellent weldability and excellent sectility for gas cutting and production method for same

Info

Publication number
TW200641152A
TW200641152A TW095107217A TW95107217A TW200641152A TW 200641152 A TW200641152 A TW 200641152A TW 095107217 A TW095107217 A TW 095107217A TW 95107217 A TW95107217 A TW 95107217A TW 200641152 A TW200641152 A TW 200641152A
Authority
TW
Taiwan
Prior art keywords
high tensile
sectility
production method
same
refractory steel
Prior art date
Application number
TW095107217A
Other languages
Chinese (zh)
Other versions
TWI322830B (en
Inventor
Yoshiyuki Watanabe
Ryuuji Uemori
Kiyoshi Ishibashi
Kenichi Yoshii
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 TW200641152A publication Critical patent/TW200641152A/en
Application granted granted Critical
Publication of TWI322830B publication Critical patent/TWI322830B/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
    • C22C38/12—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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • 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
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • 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
    • 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
    • C21D2211/005—Ferrite
    • 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

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 Steel (AREA)

Abstract

A high tensile refractory steel of the invention comprises in mass per cent, C: 0.04 to 0.14%, Si: not more than 0.50%, Mn: 0.50 to 2.00%, P: not more than 0.020%, S: not more than 0.010%, Nb: 0.01 to 0.05%, Mo: not less than 0.30% and less than 0.70%, Al: not more than 0.060%, N: 0.0010 to 0.0060%, weld crack sensitivity composition expressed by a formula, PcM=C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B: not more than 0.25%, and balance: Fe and unavoidable impurities, wherein at a position 1/4 of the depth in the direction of plate thickness of a steel plate after a final rolling, polygonal ferrite or pseudo polygonal ferrite are not more than 10% in area ratio.
TW095107217A 2005-03-04 2006-03-03 High tensile refractory steel having excellent weldability and excellent sectility for gas cutting and production method for same TWI322830B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005060601A JP4718866B2 (en) 2005-03-04 2005-03-04 High-strength refractory steel excellent in weldability and gas-cutting property and method for producing the same

Publications (2)

Publication Number Publication Date
TW200641152A true TW200641152A (en) 2006-12-01
TWI322830B TWI322830B (en) 2010-04-01

Family

ID=36941312

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095107217A TWI322830B (en) 2005-03-04 2006-03-03 High tensile refractory steel having excellent weldability and excellent sectility for gas cutting and production method for same

Country Status (6)

Country Link
US (1) US20090025839A1 (en)
JP (1) JP4718866B2 (en)
KR (1) KR100920536B1 (en)
CN (1) CN100529139C (en)
TW (1) TWI322830B (en)
WO (1) WO2006093282A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20075886L (en) 2007-12-07 2009-06-08 Rautaruukki Oyj Procedure for selecting consistency of steel, steel and use of same
KR100928788B1 (en) * 2007-12-28 2009-11-25 주식회사 포스코 High strength steel sheet with excellent weldability and manufacturing method
KR20110127289A (en) * 2008-10-27 2011-11-24 신닛뽄세이테쯔 카부시키카이샤 Fire-resistant steel excellent in low-temperature toughness and reheat embrittlement resistance of welding heat affected zone and process for production of the same
KR101322067B1 (en) * 2009-12-28 2013-10-25 주식회사 포스코 High strength steel sheet having excellent property after post weld heat treatment and method for manufacturing the same
CN103147001B (en) * 2013-02-22 2016-02-10 武汉钢铁(集团)公司 A kind of fire-resistant steel for ship structure and production method thereof
JP6277679B2 (en) * 2013-11-05 2018-02-14 新日鐵住金株式会社 High-tensile steel plate with excellent gas cut cracking resistance and high heat input weld toughness
KR101585730B1 (en) 2013-12-24 2016-01-14 주식회사 포스코 Thick steel sheet having excellent high temperature yield strength and low-temperature toughness, and method for manufacturing the same
CN108085589A (en) * 2017-11-22 2018-05-29 南阳汉冶特钢有限公司 A kind of 120mm~150mm thickness ultralow-temperature flexibility fire-resistant and weather-resistant steel and its production method
CN110218938A (en) * 2019-06-13 2019-09-10 南京钢铁股份有限公司 A kind of welding high heat input anti-seismic refractory steel plate and its manufacturing method
CN111172464B (en) * 2020-02-28 2021-05-28 鞍钢股份有限公司 690 MPa-level fire-resistant weather-resistant steel plate for building structure and manufacturing method thereof
US11788951B2 (en) 2021-03-19 2023-10-17 Saudi Arabian Oil Company Testing method to evaluate cold forming effects on carbon steel susceptibility to hydrogen induced cracking (HIC)
US11656169B2 (en) * 2021-03-19 2023-05-23 Saudi Arabian Oil Company Development of control samples to enhance the accuracy of HIC testing

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0737648B2 (en) * 1991-03-22 1995-04-26 新日本製鐵株式会社 Manufacturing method of fire-resistant steel plate for construction with excellent toughness
JP3126181B2 (en) * 1991-10-21 2001-01-22 新日本製鐵株式会社 Manufacturing method of steel for offshore structures with excellent fire resistance
JP3202310B2 (en) * 1992-04-02 2001-08-27 新日本製鐵株式会社 High heat input welding
JP2000192142A (en) * 1998-12-25 2000-07-11 Nkk Corp Production of low yield ratio fire resistant steel
JP4054139B2 (en) * 1999-06-30 2008-02-27 新日本製鐵株式会社 Steel material excellent in fire resistance and weld heat-affected zone toughness and its manufacturing method
JP4639508B2 (en) * 2001-03-30 2011-02-23 Ｊｆｅスチール株式会社 Manufacturing method of low yield ratio steel with excellent fire resistance
JP4038166B2 (en) * 2003-04-11 2008-01-23 新日本製鐵株式会社 Steel plate excellent in earthquake resistance and weldability and manufacturing method thereof
JP5079744B2 (en) * 2009-05-26 2012-11-21 愛三工業株式会社 Fuel vapor pressure measurement system

Also Published As

Publication number Publication date
JP4718866B2 (en) 2011-07-06
CN101111621A (en) 2008-01-23
US20090025839A1 (en) 2009-01-29
KR100920536B1 (en) 2009-10-08
KR20070091368A (en) 2007-09-10
TWI322830B (en) 2010-04-01
CN100529139C (en) 2009-08-19
WO2006093282A1 (en) 2006-09-08
JP2006241552A (en) 2006-09-14

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