发明名称 |
STEEL FOR NITRIDING PURPOSES, AND NITRIDED MEMBER |
摘要 |
<p>The present invention provides a steel for nitriding with a composition including, by mass%: C: 0.10% to 0.20%; Si: 0.01% to 0.7%; Mn: 0.2% to 2.0%; Cr: 0.2% to 2.5%; Al: 0.01% to less than 0.19%; V: over 0.2% to 1.0%; Mo: 0% to 0.54%; N: 0.001% to 0.01%; P limited to not more than 0.05%; S limited to not less than 0.2%; and a balance including Fe and inevitable impurities, the composition satisfying 2 ‰¤ [V]/[C] ‰¤ 10, where [V] is an amount of V by mass% and [C] is an amount of C by mass%, in which the steel for nitriding has a microstructure containing bainite of 50% or more in terms of an area percentage.</p> |
申请公布号 |
EP2578717(A4) |
申请公布日期 |
2013.10.30 |
申请号 |
EP20110840912 |
申请日期 |
2011.11.17 |
申请人 |
NIPPON STEEL & SUMITOMO METAL CORPORATION |
发明人 |
CHIDA TETSUSHI;KUBOTA MANABU;TARUI TOSHIMI;HIRAKAMI DAISUKE;HASHIMURA MASAYUKI |
分类号 |
C22C38/00;C22C38/38;C23C8/32;F16H55/06 |
主分类号 |
C22C38/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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