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TW200607871A - Shaped steel excellent in fire resistance and producing method therefor - Google Patents

Shaped steel excellent in fire resistance and producing method therefor

Info

Publication number
TW200607871A
TW200607871A TW094124884A TW94124884A TW200607871A TW 200607871 A TW200607871 A TW 200607871A TW 094124884 A TW094124884 A TW 094124884A TW 94124884 A TW94124884 A TW 94124884A TW 200607871 A TW200607871 A TW 200607871A
Authority
TW
Taiwan
Prior art keywords
shaped steel
alloy
ratio
fire resistance
producing method
Prior art date
Application number
TW094124884A
Other languages
Chinese (zh)
Other versions
TWI312372B (en
Inventor
Suguru Yoshida
Kazuhiko Eda
Hiroshi Kita
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 TW200607871A publication Critical patent/TW200607871A/en
Application granted granted Critical
Publication of TWI312372B publication Critical patent/TWI312372B/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

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

A shaped steel, such as H-shaped steel, excellent in fire resistance, where a flange portion has 50% or more of a ratio of strength, 80% or less of yield ratio, and 100 J or more of impact strength of Charpy impact test at 0 DEG C, wherein the ratio of strength = (proof stress of 0.2% at 600 DEG C)/(yield strength at room temperature), and a producing method thereof are provided. The shaped steel comprises in mass percent (%): C:0.03-0.15; Mo: O.1- 0.6; V ≤ 0.35; and N: 0.002-0.012, and the balance being iron and residual impurities, wherein (x) a mol fraction of precipitate of alloy carbides and alloy carbonitrides at 600 DEG C is 0.3 % or more, and (y) the ratio of the mol fraction of precipitate of alloy carbides and alloy carbonitrides at 300 DEG C to the mol fraction of precipitate of alloy carbides and alloy carbonitrides at 600 DEG C is 2.0 or less.
TW094124884A 2004-07-28 2005-07-22 Shaped steel excellent in fire resistance and producing method therefor TWI312372B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004220454 2004-07-28
JP2004220337 2004-07-28
JP2005207185A JP2006063443A (en) 2004-07-28 2005-07-15 H-section steel excellent in fire resistance and method for producing the same

Publications (2)

Publication Number Publication Date
TW200607871A true TW200607871A (en) 2006-03-01
TWI312372B TWI312372B (en) 2009-07-21

Family

ID=34973110

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094124884A TWI312372B (en) 2004-07-28 2005-07-22 Shaped steel excellent in fire resistance and producing method therefor

Country Status (5)

Country Link
US (1) US20080302453A1 (en)
EP (1) EP1769097B1 (en)
JP (1) JP2006063443A (en)
TW (1) TWI312372B (en)
WO (1) WO2006011618A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190184436A1 (en) * 2016-08-29 2019-06-20 Nippon Steel & Sumitomo Metal Corporation Rolled h-shaped steel and manufacturing method thereof
US11041231B2 (en) * 2017-03-15 2021-06-22 Nippon Steel Corporation H-section steel and method of producing the same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4990196A (en) * 1988-06-13 1991-02-05 Nippon Steel Corporation Process for manufacturing building construction steel having excellent fire resistance and low yield ratio
JP2661845B2 (en) * 1992-09-24 1997-10-08 新日本製鐵株式会社 Manufacturing method of oxide-containing refractory section steel by controlled rolling
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
JP3718348B2 (en) * 1998-07-31 2005-11-24 新日本製鐵株式会社 High-strength and high-toughness rolled section steel and its manufacturing method
JP4013549B2 (en) * 2000-02-02 2007-11-28 Ｊｆｅスチール株式会社 High strength and high toughness seamless steel pipe for line pipe and method for producing the same
JP2001247930A (en) * 2000-03-06 2001-09-14 Nkk Corp Rolled shape steel excellent in earthquake resistance and fire resistance and its producing method
WO2002036840A1 (en) * 2000-10-31 2002-05-10 Nkk Corporation High tensile hot rolled steel sheet and method for production thereof
JP2003096534A (en) * 2001-07-19 2003-04-03 Mitsubishi Heavy Ind Ltd High strength heat resistant steel, method of producing high strength heat resistant steel, and method of producing high strength heat resistant tube member

Also Published As

Publication number Publication date
US20080302453A1 (en) 2008-12-11
JP2006063443A (en) 2006-03-09
EP1769097A1 (en) 2007-04-04
TWI312372B (en) 2009-07-21
WO2006011618A1 (en) 2006-02-02
EP1769097B1 (en) 2008-03-26

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees