FW8104 56 ~ 60HRC no transition layer at the surface of cast iron welding, often used for sugar cane juice machine rolls, cut sugar cane knives, feed grinder blade, the impact of drilling bits, drilling with a chisel, drive pulleys and other components of pushing the surface of the heap welding or repair. Surfacing Air hardening, toughness, crack resistance, suitable for high shock load conditions of Abrasive or metal abrasion conditions. 
 FW8105 56HRC on the high manganese steel has good bonding ability to add transition layer may direct surfacing. Often used jaw crusher jaw plates, large excavator bucket teeth, cone crusher wall, smashing acetabular wall, ball mill liners, diaphragm plate, etc. surfacing. Surfacing Air hardening, toughness, crack resistance, and is suitable to withstand a high shock and wear proper welding surface wear, but also for high temperature (450 ℃ below).