FCW 250-S
Description & applications
- Tubular wire for submerged arc hardfacing
- Low alloy bainitic deposit
APPLICATIONS
FCW 250-S is used for rebuilding of worn hardened steel parts or as a buffer layer on ferritic steels before hardfacing with wires providing higher abrasion resistance.
Examples Transmission shafts, gear teeth, conveyor chains, wheels of rolling bridges, bearing tracks etc.
Classification
| En 14700 |
|---|
| TFe1 |
Typical weld metal composition (%)
| C | Mn | Si | Cr | Mo |
|---|---|---|---|---|
| 0.1 | 1.5 | 0.7 | 1.5 | 0.2 |
All weld metal mechanical properties
| Hardness (3-layer deposit as welded) |
|---|
| 250 HB |
Operating conditions
| Diameter [mm] | Amperage [A] - Range | Amperage [A] - Optimum | Voltage [V] - Range | Voltage [V] - Optimum | Stick-out [mm] - Range | Stick-out [mm] - Optimum |
|---|---|---|---|---|---|---|
| 2.4 | 200-450 | 350 | 26-30 | 30 | 25-40 | 30 |
| 2.8 | 250-550 | 400 | 28-32 | 30 | 25-40 | 30 |
| 3.2 | 300-650 | 500 | 28-32 | 30 | 25-40 | 30 |
Welding positions
EN ISO 6947: PA, PB
ASME IX: 1G, 1F, 2F
Packings & Diameters
| Diameters [mm] | 2.4 - 2.8 - 3.2 | 2.4 - 2.8 - 3.2 |
|---|---|---|
| Packing(s) | Coil: B450 | Drum |
| Weight [Kg] | 25 | Up to 330 |
| Description | - | - |