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:
Oct. 01, 1996
Filed:
Jun. 05, 1995
Masayuki Yamada, Yokohama, JP;
Yoichi Tsuda, Yokohama, JP;
Ryuichi Ishii, Yokohama, JP;
Eiji Maeda, Muroran, JP;
Tsukasa Azuma, Muroran, JP;
The Japan Steel Works, Ltd., Tokyo, JP;
Toshiba Corporation, Kanagawa, JP;
Abstract
A heat resisting steels comprising, on percentage by weight basis, 0.05 to 0.2% of C, not more than 1.0% of Ni, 9 to 13% of Cr, 0.05 to 1% of Mo, 0.05 to 0.3% of V, 1 to 3% of W, 1 to 5% of Co, 0.01 to 0.1% of N, at least one member selected from 0.01 to 0.15% of Nb, 0.01 to 0.15% of Ta, 0.003 to 0.03% of a rare earth element, 0.003 to 0.03% of Ca and 0.003 to 0.03% of B, and the remainder of Fe and unavoidable impurities have enhanced high temperature characteristics and are suitable for use in parts of turbine such as turbine rotors, turbine blades, turbine disks and bolts.