The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 2018
Filed:
Nov. 09, 2011
Shinji Oikawa, Hitachi, JP;
Hideo Yoda, Hitachi, JP;
Masahiko Arai, Hitachinaka, JP;
Hiroyuki Doi, Tokai, JP;
Shinji Oikawa, Hitachi, JP;
Hideo Yoda, Hitachi, JP;
Masahiko Arai, Hitachinaka, JP;
Hiroyuki Doi, Tokai, JP;
Mitsubishi Hitachi Power Systems, Ltd., Yokohama, JP;
Abstract
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'.