Gas welding rods low-fuming bronze gas welding rods are made of copper and tin alloy to produce a rod that flows easily, joins a variety of metals including cast and malleable iron, galvanized steel, bronze, copper and steel. These rods have a melting point of 1630-Degree Fahrenheit and produce strong joints up to 63,000 PSI tensile strength. Bare bronze rods require flux. Available in 1-Pound packs. Flux-coated bronze diameter 3/32-Inch length 18-Inch quantity 8