A tungsten alloy is a composition of pure tungsten, nickel, and copper or iron. The addition of these alloying elements increases both ductility and machinability of the tungsten alloy compared to pure tungsten. Copper provides required conductivity and tungsten allows the welding rod to withstand high temperature of the arc-welding environment. Tungsten can be combined with other metals to increase their strength and resistance to corrosion. Several heavy steels used in cutting and ... Read more