Co-based hardfacing wire HS112 very AWSRCoCr-B 
 Main chemical composition /% 
 C1.2-1.7 Mn ≤ 1.0 Si0.4-2.0 Cr26-32 W7.0-9.5 Fe ≤ 2.0 Co margin 
 Surfacing layer hardness HRC :45-50 
 Main characteristics and use: 
 HS112 cobalt-based welding wire, the Co-Cr-W alloy welding with moderate hardness, wear resistance better than the HS111, but the plastic somewhat less, with good corrosion resistance, heat resistance and wear resistance, about 650 ℃ able to maintain these properties at high temperatures. Mainly used for high temperature, high pressure valves, engine valves, high pressure pump sets and sleeve lining, hot roll welding pass, etc.