发明公开
- 专利标题： Precipitation hardening martensitic stainless steel and long blade for steam turbine using the same
- 专利标题（中）： 汽轮机用沉淀硬化马氏体不锈钢和长叶片
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申请号： EP13189010.5申请日： 2013-10-16
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公开(公告)号： EP2722407A3公开(公告)日： 2017-10-25
- 发明人: Oikawa, Shinji , Yoda, Hideo , Arai, Masahiko , Doi, Hiroyuki
- 申请人： Mitsubishi Hitachi Power Systems, Ltd.
- 申请人地址： 3-1, Minatomirai 3-chome, Nishi-ku, Yokohama 220-8401 JP
- 专利权人： Mitsubishi Hitachi Power Systems, Ltd.
- 当前专利权人： Mitsubishi Hitachi Power Systems, Ltd.
- 当前专利权人地址： 3-1, Minatomirai 3-chome, Nishi-ku, Yokohama 220-8401 JP
- 代理机构： Beetz & Partner mbB
- 优先权： JP2012229408 20121017
- 主分类号： C21D6/00
- IPC分类号： C21D6/00 ; C21D9/00 ; C21D1/18 ; C21D1/26 ; C22C38/44 ; C22C38/06 ; C22C38/00 ; F01D5/28
摘要：
A precipitation hardening martensitic stainless steel is provided with excellent mechanical property and corrosion resistance and contains, by mass, 0.1% or less of C; 0.1% or less of N; 10.0% ~ 15.0% of Cr; 10.0% ~ 15.0% of Ni; 0.5% ~ 2.5% of Mo; 1.0% ~ 3.0% of Al; 1.0% or less of Si; 1.0% or less of Mn, and the rest is Fe and inevitable impurities. A steam turbine long blade (10) is made of the precipitation hardening martensitic stainless steel.
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