Weldcote Metals Low Fuming Bronze Is A General Purpose Oxy-Acetylene Brazing Rod Used For Steel, Copper Alloys, Cast Iron, Nickel Alloys And Stainless Steel. A Balanced Chemical Analysis Of Copper And Zinc As Well As Alloying Elements Of Tin, Iron, Manganese And Silicon Produce Weld Deposits Are Easily Attained Simply By Applying A Neutral Or Slightly Oxidizing Flame. The High Silicon Content Of Weldcote Metals Low Fuming Bronze Keeps Fumes To A Minimum. Preheating Is Required For Some Applications And Bronze Brazing Flux Is Required For Bare Rods. Order As Bare Or Flux-Coated.