Tantalum and Tantalum alloys (such as Ta-2.5W, Ta-10W, Ta-40Nb, etc.) tube, wire, rod, bar and plate, with high melting point, corrosion resistance, good cold performance, etc., are widely used in chemical industry, high-temperature field of technology industries. Mainly used in the manufacture of chemical process reaction vessels and heat exchangers, piping, condenser, bayonet heaters, helical coil, U-shaped tube, thermocouple protection tube and the liquid metal containers and pipe.