发明名称 |
Precipitation Hardening Martensitic Stainless Steel and Steam Turbine Component Made Thereof |
摘要 |
It is an objective of the present invention to provide a precipitation-hardening martensitic stainless steel having well-balanced properties of high mechanical strength, high toughness and good corrosion resistance properties. There is provided a precipitation-hardening martensitic stainless steel comprising: 0.10 mass % or less of C; 13.0 to 15.0 mass % of Cr; 7.0 to 10.0 mass % of Ni; 2.0 to 3.0 mass % of Mo; 0.5 to 2.5 mass % of Ti; 0.5 to 2.5 mass % of Al; 0.5 mass % or less of Si; 0.1 to 1.0 mass % of Mn; and the balance including Fe and incidental impurities, in which the mass % content of the Ti (represented by [Ti content]), the mass % content of the Al (represented by [Al content]) and the mass % content of the C (represented by [C content]) satisfy relationships of “0.5≦̸[Ti content]≦̸2.5” and “0.5≦̸[Al content]+2[C content]≦̸2.7”. |
申请公布号 |
US2012114496(A1) |
申请公布日期 |
2012.05.10 |
申请号 |
US201113292126 |
申请日期 |
2011.11.09 |
申请人 |
OIKAWA SHINJI;YODA HIDEO;ARAI MASAHIKO;DOI HIROYUKI |
发明人 |
OIKAWA SHINJI;YODA HIDEO;ARAI MASAHIKO;DOI HIROYUKI |
分类号 |
F01D5/14;C22C38/22;C22C38/28 |
主分类号 |
F01D5/14 |
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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