HFM 818S
Basic electrode for creep-resistant steels
Product description
Low-hydrogen chromium-molybdenum basic electrode for welding creep-resistant steels (0.5% Cr – 0.5% Mo). Pipes, boilers, for use in service up to 500°C. Smooth melting, easy slag removal. Attractive appearance of deposited metal.
Main sectors of use: chemicals and petrochemicals.
Product application instructions
| Steels and tubes for boilers and pressure vessels: | ||
| NF A 36-206 | : | 15D3 – 18MD4 .05 – 15CD2.05 |
| DIN 17155 | : | 20 Cr Mo 2 – 20 Mo Cr 4 – 15 Cr Mo 3 |
| BS 1501 | : | Gr 261 |
| Vallourec nuance | : | Chromesco 1 |
Classification
| AWS A5.5 | ISO 3580 | EN 1599 |
|---|---|---|
| E 8018-B1 | E 0.5 Cr Mo B 20 | E Cr Mo 0.5 B 42 |
Chemical analysis (%)
| C | If | Mn | Cr | Mo | S | P |
|---|---|---|---|---|---|---|
| <0.12 | 0.4 | 0.8 | 5.0 | 5.0 | <0.025 | <0.025 |
Mechanical characteristics
| Rm (MPa) | Rp0.2 (MPa) | A5 (%) | Av - ISO - V |
|---|---|---|---|
| >550 | >460 | >19 | +20°C >160 |
Why choose this basic electrode?
Vacuum-packed 5 or 6Kg electrode for welding highly stressed steel assemblies (carbon and carbon manganese) (tensile strength up to 510 MPa).
It features excellent mechanical properties, particularly at low temperatures.
