Title:
CARBURIZATION-RESISTANT METAL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2012/176586
Kind Code:
A1
Abstract:
Disclosed is a carburization-resistant metal material suitable as a material for cracking furnaces, reforming furnaces, heating furnaces, heat exchangers, or the like used for petroleum or gas refining or in chemical plants, the carburization-resistant metal material containing, by mass%, 0.03-0.075% of C, 0.6-2.0% of Si, 0.05-2.5% of Mn, 0.04% or less of P, 0.015% or less of S, greater than 16.0% to less than 20.0% of Cr, 20.0% or greater to less than 30.0% of Ni, 0.5-10.0% of Cu, 0.15% or less of Al, 0.15% or less of Ti, 0.005-0.20% of N, and 0.02% or less of O (oxygen), with the remainder comprising Fe and impurities. The carburization-resistant metal material may further contain one or more types of elements from among Co, Mo, W, Ta, B, V, Zr, Nb, Hf, Mg, Ca, Y, La, Ce, and Nd.
Inventors:
NISHIYAMA YOSHITAKA (JP)
OKADA HIROKAZU (JP)
OSUKI TAKAHIRO (JP)
DAN ETSUO (JP)
OKADA HIROKAZU (JP)
OSUKI TAKAHIRO (JP)
DAN ETSUO (JP)
Application Number:
PCT/JP2012/063696
Publication Date:
December 27, 2012
Filing Date:
May 29, 2012
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
NISHIYAMA YOSHITAKA (JP)
OKADA HIROKAZU (JP)
OSUKI TAKAHIRO (JP)
DAN ETSUO (JP)
NISHIYAMA YOSHITAKA (JP)
OKADA HIROKAZU (JP)
OSUKI TAKAHIRO (JP)
DAN ETSUO (JP)
International Classes:
C22C38/00; C22C30/02; C22C38/58
Domestic Patent References:
| WO2009107585A1 | 2009-09-03 | |||
| WO2009107585A1 | 2009-09-03 |
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| JP2002256398A | 2002-09-11 | |||
| JP2006291290A | 2006-10-26 | |||
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Other References:
See also references of EP 2725112A4
JIS G3106, 2004
JIS Z3224, 1999
JIS Z3334, 1999
JIS G3106, 2004
JIS Z3224, 1999
JIS Z3334, 1999
Attorney, Agent or Firm:
SUGIOKA, Kanji et al. (JP)
Sugioka Miki 2 (JP)
Sugioka Miki 2 (JP)
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