Copper Alloys Brazing rods Welding Rod . Copper Alloys brazing rod are suitable for gas-flame brazing ,high temperature brazing ,salt bath dip brazing of copper and copper alloys ,nickel, cast iron and hard alloys .While brazing by oxyacetylene, heat ing with oxidized flame quickly can lessen evaporation of Zinc and prevent gas porosity due to over-oxidization. Copper and Zinc alloy, widely used to braze carbon steel, cast iron, hard carAlso Name:Brass welding wire.WELDING ROD:Square rod and Round rod.Most popular for padding material of Gas-welding and ARC welding in brass. Can also used in gas welding of copper, steel, copper-nickel, cast tion and cemented carbide alloy tools incrustation.Recommended for the joining welding of copper with CU-Sn alloy. Best for the joining welding of Cu-Zn alloy with steel. Pre-heart suggested for the large size products and pulsed ARC welding is recommended for multilayer on steel.