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Title:
STEEL FOR NITROCARBURIZATION, NITROCARBURIZED COMPONENTS, AND PRODUCTION METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2011/114775
Kind Code:
A1
Abstract:
The disclosed steel for nitrocarburization includes, in terms of mass%, less than 0.15% C, 0.01-1.00% Si, 0.01-1.00% Mn, 0.0001-0.050% S, 0.0001-0.050% Al, more than 0.50 but not more than1.50% Ti, and 0.0005-0.0100% N, with the remainder being Fe and unavoidable impurities, wherein the content of P is limited to at most 0.050%, the content of O is limited to at most 0.0060% and the Ti content [Ti%], the C content [C%], the N content [N%] and the S content [S%] satisfy the equation 0.48 < [Ti%] - 47.9 x ([C%] / 12 + [N%] / 14 + [S%] / 32) ≤ 1.20.

Inventors:
KUBOTA MANABU (JP)
Application Number:
PCT/JP2011/051329
Publication Date:
September 22, 2011
Filing Date:
January 25, 2011
Export Citation:
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Assignee:
NIPPON STEEL CORP (JP)
KUBOTA MANABU (JP)
International Classes:
C22C38/00; C21D1/06; C21D9/28; C21D9/32; C21D9/40; C22C38/60; C23C8/32; C23C8/36; C23C8/56
Foreign References:
JP2006219737A2006-08-24
JP2006022351A2006-01-26
JP2004300473A2004-10-28
JP2000169934A2000-06-20
JPH11323482A1999-11-26
JPH11236646A1999-08-31
JP3849296B22006-11-22
JP3353698B22002-12-03
JPH11229032A1999-08-24
JP3855418B22006-12-13
JP2005281857A2005-10-13
JPH09279295A1997-10-28
JPH0559488A1993-03-09
JP2004003010A2004-01-08
JP4291941B22009-07-08
JP2002069571A2002-03-08
JPH10306343A1998-11-17
JP2000345292A2000-12-12
Other References:
See also references of EP 2548986A4
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
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Claims: