Premiarc DW-310 features: The weld metal composition of DW-310 is of the 25%Cr-20%Ni type, and has a fully austenitic structure. Due to the nature of austenitic materials, great care must be taken to prevent cracking. It is recommended that DW-310 be used with the welding current of 150A or less. In first pass welding of a narrow V-groove joint or large stress concentrated joint, a welding current of 140Ams or less is recommended. This will increase the weldments crack resistibility.