FCW W G
Cored wire - Hardfacing
Description & applications
• Tubular wire for gas shielded metal arc hardfacing
• Martensitic alloy used in applications where greater hardness of the weld metal is required up to 500°C
• Outstanding resistance to low stress abrasion with heavy impact and high compressive stresses
APPLICATIONS
• FCW W G is used for surfacing parts subjected to heavy compressive stresses and moderate abrasion or metal-to-metal wear, combined with mechanical and thermal shocks.
• Pre-heat is an essential requirement to prevent hot cracking. The level of preheat is a function of the size and geometry of the component to be hardfaced and its chemical composition. Large build-ups are recommended to be stress-relieved. Avoidexcessive build up thickness (use FCW WLC for rebuilding and FCW W for the cap layer)
Examples Refurbishing of steel mill rolls, crane wheels, hot work extrusion mandrels, crushing hammers, shear knives, pulleys, and winches
Classification
| EN 14700 |
|---|
| T Fe3 |
Typical weld metal composition (%)
| C | Mn | Si | Cr | Mo | W | Fe |
|---|---|---|---|---|---|---|
| 0.5 | 2.0 | 0.8 | 6.5 | 1.5 | 1.5 | Rest |
All weld metal mechanical properties
| Hardness – 3-Layer deposit on mild steel |
|---|
| 52-56 HRc |
Shielding gas
| Current type | DC (+) |
|---|---|
| EN ISO 14175 | M12 / M13 / M20 / M21 |
Operating conditions
| Diameter [mm] | Amperage [A] | Voltage [V] | Stick-out [mm] | Gas flow [l/min] | Recovery |
|---|---|---|---|---|---|
| 1.2 | 100-300 | 24-32 | 12-25 | 10-20 | > 95 % |
| 1.6 | 150-300 | 24-32 | 12-25 | 10-20 | > 95 % |
| 2.0 | 200-400 | 24-32 | 12-30 | 10-20 | > 95 % |
| 2.4 | 250-450 | 24-32 | 12-30 | 10-20 | > 95 % |
Welding positions
FCW W G, up to Ø 1.6 mm, is suitable for downhand as well as for positional welding by adapting transfer mode and welding parameters as for solid wires.
Packings & Diameters
| Diameters [mm] | ≤ 2.4 mm | ≥ 2.4 mm | ≥ 2.4 mm |
|---|---|---|---|
| Packing(s) | Spool : BS 300 | Coil : B 450 | Drum |
| Weight [Kg] | 15 | 25 | Up to 330 kg |
| Description | - | - | - |