Precipitation hardening martensitic stainless stee

专利名称：Precipitation hardening martensitic stainless

steel and steam turbine component madethereof

发明人：Shinji Oikawa,Hideo Yoda,Masahiko

Arai,Hiroyuki Doi

申请号：US13292126申请日：20111109公开号：US09873930B2公开日：20180123

摘要：It is an objective of the present invention to provide a precipitation-hardeningmartensitic 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 2.5mass % 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; andthe 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”.

申请人：Shinji Oikawa,Hideo Yoda,Masahiko Arai,Hiroyuki Doi

地址：Hitachi JP,Hitachi JP,Hitachinaka JP,Tokai JP

国籍：JP,JP,JP,JP

代理机构：Crowell & Moring LLP

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