FCW AP O
Cored wire for self shielded metal arc hardfacing
Description & applications
• Cored wire for self shielded metal arc hardfacing
• Austenitic deposit with excellent work hardening properties
APPLICATIONS
FCW AP O produces an austenitic and non magnetic weld deposit which has excellent work hardening properties. The degree of work hardening is dependent on the amount of impact on the rebuilt component. It is used for rebuilding components exposed to high impact or heavy loads and can be used on ferritic and austenitic steels including “Hadfield” manganese steel. Deposit can be multi-layered
Examples
Railroad frogs, crusher rolls, hammers, steel mill rolls and all components where a work hardening deposit is desirable.
Classification
| DIN 8555 |
|---|
| MF 7-GF-250/50-CKNPR |
Typical weld metal composition (%)
| C | Mn | Si | Cr | Fe |
|---|---|---|---|---|
| 0.4 | 16.0 | 0.5 | 14.0 | Balance |
All weld metal mechanical properties
| Hardness – 3-Layer deposit - As welded | Hardness – 3-Layer deposit - Work hardened |
|---|---|
| 210-240 HB | 45-55 HRc |
Shielding gas
| Current type | DC (+) |
|---|---|
| Shielding | Self shielded |
Operating conditions
| Diameter [mm] | Amperage [A] - Range | Amperage [A] - Optimum | Voltage [V] - Range | Voltage [V] - Optimum | Stick-out [mm] - Range | Stick-out [mm] - Optimum |
|---|---|---|---|---|---|---|
| 1.2 | 100-300 | 250 | 21-35 | 28 | 12-25 | 15 |
| 1.6 | 150-300 | 270 | 24-35 | 28 | 15-25 | 20 |
| 2.0 | 200-400 | 300 | 26-35 | 28 | 20-50 | 30 |
| 2.4 | 250-450 | 350 | 26-35 | 28 | 25-50 | 40 |
| 2.8 | 250-450 | 400 | 28-35 | 30 | 25-50 | 40 |
Welding positions
Flat, half up, half down
Packings & Diameters
| Diameters [mm] | 1.2 - 1.6 - 2.0 - 2.4 | 2.4 - 2.8 | 2.4 - 2.8 |
|---|---|---|---|
| Packing(s) | Spool BS 300 | Coil B 450 | Drum |
| Weight [Kg] | 15 | 25 | Up to 330 |
| Description | - | - | - |