MIG Welding Wire GYS CrMo2Si Low-Alloy Steel 0.8mm 15kg Spool ER90S-B3
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- Low-alloy CrMo2Si wire for high-temperature applications up to 600°C
- AWS 5.28 ER90S-B3 classification, suitable for petrochemical and boiler work
- Welding in all positions with Ar+O2 or CO2 gas protection

This copper-coated low-alloy steel MAG wire contains 2.25% chromium and 1% molybdenum, designed for welding and repair of steels resistant to hot creep. Ideal for petrochemical installations, boilers, pipework, and heat exchangers operating at temperatures up to 600°C.
Features
- High resistance to hot creep in elevated temperature applications
- Welding in all positions
- AWS 5.28 ER90S-B3 classification
- Requires DC positive polarity
- Use with Ar+O2 or CO2 gas protection
| Specification | Value |
|---|---|
| Wire diameter | 0.8 mm |
| Reel weight | 15 kg |
| Reel diameter | 300 mm |
| Yield strength (Re) | 560 MPa |
| Tensile strength (Rm) | 650 MPa |
| Elongation (A5) | >20% |
| Impact strength (KV at 20°C) | 170 J |
| Chromium content | 2.50% |
| Molybdenum content | 1.00% |
| Silicon content | 0.60% |
| Manganese content | 0.60% |
| Carbon content | 0.08% |
| Brand | GYS |
| Material Type | High Strength Steel (ER80S+) |
| AWS Classification | ER90S-B3 |
| Diameter | 0.8mm |
| Weight | 15kg |
| Spool Size | Standard (12.5-25kg) |
Technical Data Sheet
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