Low Alloy Solid Electrode • AWS A5.28M ER90S-B9
Features
- B9 (P91) alloyed steel: Modified 9CrMo designed to weld equivalent "type 91" 9CrMo steels modified with small additions of niobium, vanadium and nitrogen for improved long term creep resistance
- Specifically designed for high integrity structural service at elevated temperature
- Non-copper coated solid wire
Typical Applications
- Power Plants
- Elevated Temperature Piping
- Turbine Castings
- Oil Refineries
Welding Positions
- All
Shielding Gas
- M21 : Mixed gas Ar+ 15-25% CO2, M13 : Mixed gas Ar+ 0.5-3% O2