Corstel 1A
“Grade 1” type base cobalt hardfacing electrode
Description & applications
Hardfacing electrode with a rutile-basic coating. Cobalt based deposit of « stellite grade 1 » type (Co-Cr-W). Hardest Co-type (superior to all other types of stellite).
Very good resistance to metal-metal wear and to corrosion up to 800°C. The coefficient of friction is very low. Highly resistant to erosion and cavitation.
Facing of rollers, rails, bearing and shafts of pumps, extrusion dies, hot cutting tools, conveyor screws.
* Note: "Stellite" is a trade mark of Deloro Stellite (Haynes International)
Classification
| AWS A5.13 | DIN 8555 |
|---|---|
| E Co Cr-C | E20-UM-55-CTZ |
Typical weld metal composition (%)
| C | Si | Cr | W | Fe | Co |
|---|---|---|---|---|---|
| 2.1 | 1.0 | 30.0 | 12.5 | 3.0 | Rest |
All weld metal mechanical properties
| Hardness (as welded) + 20°C | Hardness (as welded) +600°C |
|---|---|
| 53-57 HRC | 42-45 HRC |
Packaging data
| Dimension | 2.5x350 | 3.2x350 | 4.0x350 | 5.0x350 |
|---|---|---|---|---|
| Electr. / packet | - | - | - | - |
| Electr. / carton | - | - | - | - |
| Kg 1000 electr. | - | - | - | - |
| Packets / carton | 4 | 4 | 4 | 4 |
| Kg / packet | 5 | 5 | 5 | 5 |
| Kg / carton | 20 | 20 | 20 | 20 |
Amperes
| A | 75 | 100 | 140 | 180 |
|---|
