Title:
STEEL MATERIAL FOR WELDING
Document Type and Number:
WIPO Patent Application WO/2013/077022
Kind Code:
A1
Abstract:
This steel material for welding has a steel component in which: PCTOD is 0.065% or less, CeqH is 0.225% or less, FB is 0.0003% or more, and Bp is 0.09% to 0.30%; and at the plate-thickness center portion in the cross-section in the plate thickness direction, oxide particles having an equivalent circle diameter of no less than 2 μm are present in numbers of no more than 20 per mm2, and Ti oxides having an equivalent circle diameter of 0.05 to 0.5 μm are present in numbers of 1.0 × 103 to 1.0 × 105 per mm2.
Inventors:
FUKUNAGA KAZUHIRO (JP)
WATANABE YOSHIYUKI (JP)
USUI SHINSUKE (JP)
CHIJIIWA RIKIO (JP)
WATANABE YOSHIYUKI (JP)
USUI SHINSUKE (JP)
CHIJIIWA RIKIO (JP)
Application Number:
PCT/JP2012/066674
Publication Date:
May 30, 2013
Filing Date:
June 29, 2012
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
FUKUNAGA KAZUHIRO (JP)
WATANABE YOSHIYUKI (JP)
USUI SHINSUKE (JP)
CHIJIIWA RIKIO (JP)
FUKUNAGA KAZUHIRO (JP)
WATANABE YOSHIYUKI (JP)
USUI SHINSUKE (JP)
CHIJIIWA RIKIO (JP)
International Classes:
C22C38/00; B21B3/00; B22D11/00; B22D11/124; C21D8/02; C22C38/16
Domestic Patent References:
| WO2010134323A1 | 2010-11-25 | |||
| WO2001059167A1 | 2001-08-16 | |||
| WO2010134323A1 | 2010-11-25 | |||
| WO2009072559A1 | 2009-06-11 |
Foreign References:
| JP2007211334A | 2007-08-23 | |||
| JP2006124759A | 2006-05-18 | |||
| JP2005171300A | 2005-06-30 | |||
| JP2007002271A | 2007-01-11 | |||
| JP2010248590A | 2010-11-04 | |||
| JPH091303A | 1997-01-07 |
Other References:
See also references of EP 2784168A4
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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Claims: