Title:
STEEL MATERIAL FOR WELDED STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2014/181537
Kind Code:
A1
Abstract:
Provided is a steel material for welded structure, said steel material having a composition which contains, in mass%, 0.02 to less than 0.14% of C, 0.05 to 2.0% of Si, 0.2 to 2.0% of Mn, 0.005 to 0.03% of P, 0.0001 to 0.02% of S, 0.001 to 0.1% of Al, 0.1 to 1.0% of Cu and 0.1 to 1.0% of Ni, and contains 0.004 to 0.2% of Nb and/or 0.001 to 0.2% of Sn, with the contents of Cu, Ni and Sn satisfying a prescribed relationship and the balance consisting of Fe and unavoidable impurities. This steel material for welded structure exhibits excellent atmospheric corrosion resistance, and can be suitably used in an outdoor steel structure such as a bridge, particularly in a member which is required to be resistant to atmospheric corrosion under a highly saline environment, for example, in the vicinity of a seashore.
Inventors:
KAGE ISAMU (JP)
MIURA SHINICHI (JP)
KOMORI TSUTOMU (JP)
HOSHINO TOSHIYUKI (JP)
MIURA SHINICHI (JP)
KOMORI TSUTOMU (JP)
HOSHINO TOSHIYUKI (JP)
Application Number:
PCT/JP2014/002428
Publication Date:
November 13, 2014
Filing Date:
May 07, 2014
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C22C38/00; C22C38/16; C22C38/60
Foreign References:
| JP2013019021A | 2013-01-31 | |||
| JP2012214871A | 2012-11-08 | |||
| JP2012188754A | 2012-10-04 | |||
| JP2012067377A | 2012-04-05 | |||
| JP2011202215A | 2011-10-13 | |||
| JP2010163643A | 2010-07-29 | |||
| CN101892431A | 2010-11-24 | |||
| CN102021495A | 2011-04-20 | |||
| CN102168229A | 2011-08-31 |
Attorney, Agent or Firm:
SUGIMURA, KENJI (JP)
Kenji Sugimura (JP)
Kenji Sugimura (JP)
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