发明授权
- 专利标题： Nonmagnetic alloy steel having improved machinability
- 专利标题（中）： 具有改善机械加工性的非磁性合金钢
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申请号： US968038申请日： 1978-12-11
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公开(公告)号： US4240827A公开(公告)日： 1980-12-23
- 发明人: Kenji Aihara , Masashi Takahashi
- 申请人： Kenji Aihara , Masashi Takahashi
- 申请人地址： JPX Osaka
- 专利权人： Sumitomo Metal Industries Ltd.
- 当前专利权人： Sumitomo Metal Industries Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX52/149758 19771212
- 主分类号： C22C38/00
- IPC分类号： C22C38/00 ; C22C38/04 ; H01F1/00 ; C22C39/30
摘要：
A nonmagnetic alloy steel containing by weight 5 to 30% Mn and 0.005 to 0.5% N (nitrogen), satisfying the condition that 100/9(C%+N%)+2(Mn%+Cu%) is more than 25% and containing at least one element to improve the machinability of the steel. Since the steel contains no Ni, the steel is inexpensive and can be used for bars for reinforcing concrete and bolts for civil engineering works and buildings.
公开/授权文献
- US5243299A Variable speed asynchronous modem 公开/授权日：1993-09-07
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