Flux cored welding electrode for 5-9% nickel steel
US9962794B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Sep 12, 2014 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Nov 20, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C19/056
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A flux cored welding electrode for welding a 5-9% nickel steel workpiece by a flux cored arc welding (FCAW) process comprises a particulate core and a metal sheath surrounding the particulate core, wherein chemical composition of the metal sheath and the chemical composition of the particulate core are selected so that the weld deposit composition produced by the welding electrode comprises ≤0.15 C, ≤6.0 Mn, ≤1.0 Si, ≤0.025 P, ≤0.020 S, 12.0-20.0 Cr, ≥55.0 Ni, 5.5-7.5 Mo, 1.2-1.8 Nb+Ta, ≤12 Fe, ≤0.3 Cu and 0.5-4.0 W.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.