Description
Characteristics:
LSW-EB91 is welding for high temperature, creep resistant, modified 9%Cr1%Mo martensitic steel (T91/P91). Approved for service temperatures up to 650°C. Alloy T91/P91 is widely used in the power generating, ultra-super-critical (USC) power plant boilers and turbines, chemical and oil and gas industries.
Applications:
Its is suitable for welding of P91, 9%Cr1%Mo modified, creep resisting martensitic steels X10CrMoVNb9-1 ASTM: A182/A336 grade F91, A213 grade T91, A217 grade C12A, A234 grade WP91, A335 grade P91, A387 grade 91
Notes on Usage:
1. Dry the flux at 350℃ for 60 minutes before use
2. Not recommended to welding more than two passes.
Classification:
AWS A5.23 F9P2-EB91-B91
Typical chemical composition of weld metal (wt%)
| C | Mn | Mo | V | Cr | Ni | Nb |
| 0.10 | 1.10 | 0.95 | 0.20 | 9.20 | 0.98 | 0.32 |
Typical mechanical properties of weld metal
| YP N/mm2 | TS N/mm2 | EL % | IV -20ºC J |
| 580 | 700 | 25 | 40 |
Sizes and recommended current range ( DC+)
| Wire: Diameter (mm) | 2.4 | 3.2 | 4.0 |
| Wire: Weight per roll (kg) | 25 | 25 | 25 |
| Flux: Weight per bag(kg) | 25 | 25 | 25 |
