Lastifil 251 G

Cored wire on cobalt base - very hard

Lastifil 251G deposits an alloy on cobalt base that is resistant against abrasion, corrosion and high temperatures (up to 1000 °C (1830 °F)).

The hardness obtained is independent of the cooling rate and is not changed by any heat treatment.

Specifications & Usage


Rebuilding cutting blades, valve seats, guides in hot-rolling mills, extrusion blades, tar scrapers.

Hardness: 51-56 HRC.


Remove dirt, oil and all fatigued metal by grinding.

Preheat thick pieces that are prone to cracking to about 250 °C (480 °F).

Cool down slowly.


Welding proces: Mig/Mag welding (FCAW)
Material Type: Hard facing
Welding positions: All, except vertical down.
Norm : EN ISO 14700
Classification: T Co 3-55-CGTZ
Norm: AWS A5.21
Classification: ER CCoCr-C
Minimum packing: 15 kg spool (in a cardboard box)