Filler metal for use in welding of Ni-Cr-W alloys
US6521060B1 · kind B1 · utility
3Cited by
1References
1Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Nov 20, 2000 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Nov 20, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K35/304
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.