Techalloy 625FCA description: Techalloy 625FCA is a gas shielded, all position flux cored wire that provides a final weld chemistry equivalent to the composition requirements of AWS A5.14 ERNiCrMo-3 solid wire. Used for dissimilar welding of Ni-Cr-Mo Alloys to Steel, surfacing of Carbon and Low Alloy Steels, joining of Ni-Cr-Mo alloys.