WEARcore Co 25 is a gas shielded metal-cored wire in a cobalt base alloy, for hot working tools and forging hammers.
The wire leaves only silicate islands instead of a full slag layer, which shortens the cleaning time between passes, and it gives a high deposition rate with a stable spray arc. Previously sold as SK STELKAY 25-G.
- Classification EN ISO: 14700 T Z Co1
- AWS classification: 8555 MF 20-GF-200-STZ
- Shielding gas: M13, I1
- Diameters: 1.2 mm
- Hardness of deposit: 195 HB
Lay the overlay in overlapping beads and watch the part temperature, an overheated component will distort and crack where the layers meet. Set the parameters for spray arc, in the short arc range a metal-cored wire loses its deposition advantage. Keep the gas cover complete, without a full slag layer the pool is more sensitive to draughts. Expect a network of shrinkage cracks in hard overlays, on working deposits this is normal, but it must not reach into the parent material.
