Welding Of Brass With Steel. For repair purposes bronze or brass should be used for the welding filler rod-for foundries or in manufacturing where the weld must be practically the same color and the same material as. In the case of brass and other mild steel like aluminum it is generally fine to weld them for as long as they are thick enough to actually handle the process.
Having too much oxygen however will make welding highly difficult. Cool and clean any remaining flux from the project. DC-ve TIG welding does not provide this cleaning action and it is necessary to use AC-TIG.
With respect to the welding processes IG and TIG are preferred.
This is because brass has a high heat conductivity and this will make welding the brass together much easier. As such their molecules pool and mix completely. Welding can also be carried out using ERCuAl-A2 type filler wire using TIG Welding. Clean the metal.