发明名称 |
Graphite steel for machine structural use exhibiting excellent free cutting characteristic, cold forging characteristic and post-hardening/tempering fatigue resistance |
摘要 |
Graphite steel for a machine structural use exhibiting excellent cutting characteristic, cold forging characteristic and fatigue resistance, the graphite steel for a machine structural use containing: C: 0.1 wt % to 1.5 wt %; Si: 0.5 wt % to 2.0 wt %; Mn: 0.1 wt % to 2.0 wt %; B: 0.0003 wt % to 0.0150 wt %; Al: 0.005 wt % to 0.1 wt %; O</=0.0030 wt %; P</=0.020 wt %; S</=0.035 wt %; N: 0.0015 wt % to 0.0150 wt %; and a balance consisting of Fe and unavoidable impurities, wherein substantially overall quantity of C is precipitated as graphite and size of graphite is 20 mu m or less.
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申请公布号 |
US5648044(A) |
申请公布日期 |
1997.07.15 |
申请号 |
US19950446488 |
申请日期 |
1995.05.22 |
申请人 |
KAWASAKI STEEL CORPORATION |
发明人 |
HOSHINO, TOSHIYUKI;IWAMOTO, TAKASHI;MATSUZAKI, AKIHIRO;AMANO, KENITI |
分类号 |
C22C38/00;C22C38/02;(IPC1-7):C22C38/02;C22C38/04 |
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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