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:
May. 18, 1993
Filed:
Mar. 09, 1992
Yozo Hayase, Kobe, JP;
Yoshiatsu Sawaragi, Nishinomiya, JP;
Shigemitsu Kihara, Tokyo, JP;
Wate T Bakker, Saratoga, CA (US);
EPRI, Palo Alto, CA (US);
Abstract
High-vanadium austenitic alloys, which are structurally stable and have improved corrosion resistance in wet corrosive environments and high-temperature corrosion resistance in reducing atmosphere, contain Ni by 33.0 to 60.0 weight %, Cr by 23.0 to 28.0 weight %, V by 2.4 to 5.0 weight %, C by 0.10 weight % or less, N by 0.05 weight % or less, Si by 0.35% weight % or less, Al by 0.5 weight % or less, Mn by 1.5% weight % or less, P by 0.020 weight % or less, S by 0.005 weight % or less, and one or more selected from the group consisting of B by 0.0010 to 0.010 weight %, Zr by 0.010 to 0.06 weight %, Ti by 0.03 to 0.50% weight %, and Nb by 0.05 to 1.0 weight %, the balance being Fe and impurities.