FCW 6-G
Cobalt-based cored wire grade 6
Product description
Cobalt base tubular wire for gas shielded metal arc hardsurfacing
Exceptional resistance to metal-to-metal wear in corrosive media at high temperatures, to erosion and to thermal shocks
Product application instructions
APPLICATIONS
FCW 6-G is used for hardsurfacing parts undergoing the single or combined effects of metal-to-metal wear, abrasion, temperatures ranging from RT to 800°C, im pact and corrosive environments.
Welding positions: Flat, half up, half down
Wear resistance
Metal-Metal
Corrosion
Temperature
Impact
Abrasion
Classification
| EN 14700 | ASME IIC SFA 5.21 / AWS A 5.21 |
|---|---|
| T Co2 | ERCCoCr-A |
Chemical analysis (%)
| C | Mn | If | Cr | W | Fe | Co |
|---|---|---|---|---|---|---|
| 1.05 | 1.00 | 1.00 | 29.00 | 4.50 | 4.00 | Bal. |
Mechanical characteristics
| Hardness | High temperature hardness: 20°C | High temperature hardness: 200°C | High temperature hardness: 400°C | High temperature hardness: 600°C | High temperature hardness: 800°C |
|---|---|---|---|---|---|
| 42 HRc | 420 HB | 360 HB | 330 HB | 240 HB | 140 HB |
Why choose this cored wire?
- Excellent resistance to wear and abrasion
FCW 6-G offers excellent resistance to adhesive wear (galling, metal-to-metal bonding) and light to moderate abrasion. It is particularly effective where there is slow movement under pressure (e.g. sliding of valves, seats, shafts, etc.).
- Excellent high-temperature resistance
It retains its mechanical properties and wear resistance up to around 800-850°C, making it ideal for hot-working parts such as valve seats, valves, hot-cutting tools, etc.
- Corrosion and oxidation resistance
Thanks to its cobalt-chromium base, it is naturally resistant to slightly corrosive environments and will not rust, even after prolonged exposure to heat or chemical agents.
- Excellent dimensional stability and low cracking
Unlike very hard alloys (e.g. Grade 1), Grade 6 is tougher and therefore less prone to cracking. It also retains its shape even after numerous thermal cycles, making it ideal for moving or stressed parts.
