发明公开
EP0257979A2 Low carbon plus nitrogen, free-machining austenitic stainless steel
失效
具有良好的机械加工性和低的碳加氮的含量的奥氏体不锈钢。
- 专利标题: Low carbon plus nitrogen, free-machining austenitic stainless steel
- 专利标题(中): 具有良好的机械加工性和低的碳加氮的含量的奥氏体不锈钢。
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申请号: EP87307346.4申请日: 1987-08-19
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公开(公告)号: EP0257979A2公开(公告)日: 1988-03-02
- 发明人: Eckenrod, John J. , Rhodes, Geoffrey O. , Pinnow, Kenneth E. , Royer, William E.
- 申请人: CRUCIBLE MATERIALS CORPORATION
- 申请人地址: P.O. Box 977, State Fair Boulevard Syracuse, New York 13201-0977 US
- 专利权人: CRUCIBLE MATERIALS CORPORATION
- 当前专利权人: CRUCIBLE MATERIALS CORPORATION
- 当前专利权人地址: P.O. Box 977, State Fair Boulevard Syracuse, New York 13201-0977 US
- 代理机构: Sheader, Brian N.
- 优先权: US898488 19860821
- 主分类号: C22C38/60
- IPC分类号: C22C38/60
摘要:
A resulfurized, chromium-nickel austenitic stainless steel having improved machinability resulting from low carbon and low nitrogen contents in combination with manganese and sulfur additions. The composition of the steel consists of, in weight percent, carbon plus nitrogen total up to 0.065, preferably up to 0.040 or 0.056, chromium 16 to 30, preferably 17 to 19, nickel 5 to 26, preferably 6 to 14, sulfur 0.10 to 0.45, preferably 0.10 to 0.25, more preferably 0.25 to 0.45, manganese 0.75 to 2.0, silicon up to 1, phosphorus up to about 0.20, molybdenum up to 1.0 and copper up to 1.00, and balance iron and incidental impurities.
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