MK·ER55-B2

Standard:GB ER55-B2   AWS ER80S-B2  

Characteristics:MK ER55-B2 is copper coated gas shielded welding wire for 1.25%Cr-0.5%Mo pearlite heat-resistant steel. It has good weldability and excellent comprehensive mechanical properties.

Application:The filling metal of ER55-B2 welding wire is employed to weld 0.5Cr-0.5Mo、1Cr-0.5Mo and 1.25Cr-0.5Mo steel used under high temperature and corrosive environments, with Ar+20%CO2 mixed gas shielded, it is widely applied to the welding of structures such as conventional power station, nuclear power unit, petroleum purification, hydro-cracking equipment, synthesis chemical vessel, etc. For example, the boiler heating pipes with pipe wall temperature under 550℃ of 1.25Cr-0.5Mo series （08CrMoA、12CrMo、15CrMo etc）, high-medium pressure steam conduit under steam temperature 510℃, steam turbine and so on; As well as the fixing welding of such as steam turbine cast steel cylinder body and so on of ZG15Cr1Mo, ZG15Cr1Mo etc.