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:
Feb. 18, 2003
Filed:
Nov. 20, 2000
Yuji Kurata, Ibaraki-ken, JP;
Hirokazu Tsuji, Ibaraki-ken, JP;
Hajime Nakajima, Ibaraki-ken, JP;
Masami Shindo, Ibaraki-ken, JP;
Teiichiro Saito, Shizuoka-ken, JP;
Tamao Takatsu, Shizuoka-ken, JP;
Other;
Abstract
The improved filler metal for use in the welding of Ni—Cr—W alloys that are excellent in high-temperature strength and corrosion resistance and which are used in the hot-zone structures of high-temperature gas-cooled reactors, gas turbines, etc comprises on a mass basis C≦0.05%, Mn≦0.1%, Si≦0.1% (Mn+Si≦0.1%), Cr=17-20%, W=20-23% (Cr+W=39-43%), Ti=0.02-0.1%, Zr≦0.03%, Y≦0.015%, B=0.0003-0.01%, Al≦0.1%, Mg≦0.05%, Nb≦0.06% (10Zr+10B+5Nb+2Y≦0.3%), the balance being Ni and incidental impurities.