Low-alloy copper-coated solid wire with 0.5% Mo content designed for welding low-alloy steels with high tensile strength and creep-resistant steels. Suitable for pipelines and pressure vessels with operating temperatures of about 500°C. Good impact strength at low temperatures. To be used under the shield of Ar+CO2.
| C | 0.09 |
| Si | 0.60 |
| Mn | 1.20 |
| Mo | 0.50 |
| M21 | M21 | M21 | M21 | |
| Yield strength | 500 MPa | 480 (T) MPa | 480 (T) MPa | 480 (T) MPa |
| Tensile strength | 620 MPa | 600 (T) MPa | 600 (T) MPa | 600 (T) MPa |
| Elongation | 23 % | 25 (T) % | 25 (T) % | 25 (T) % |
| Impact test Kv (R.T.) | 150 J | 170 J (T) | ||
| Impact test Kv (0°C) | 130 J | 150 J (T) | ||
| Impact test Kv (-20°C) | 90 J | 100 J (T) |
| Diameter (mm) | Volts | Ampere |
| 0.8 | 16-28 | 60-200 |
| 1.0 | 17-32 | 80-260 |
| 1.2 | 18-34 | 100-360 |
| 1.6 | 19-38 | 130-450 |