Tungsten-molybdenum alloy is a metal alloy consisting of molybdenum and tungsten. It has excellent resistance to molten zinc corrosion, high melting point, ablation resistance and good resistance to flame erosion of solid particle. With liquid zinc corrosion-resistant performance, molybdenum-tungsten alloys are mainly used for producing some corrosion-resistant parts for liquid zinc temperature measurement tubes, heating electrode pipes, zinc solution pump rotors and zinc-smelting furnace, as well as for production of molybdenum-tungsten alloy crucibles for Sapphire growth.