Tantalum alloy (Ta-2. 5W, Ta-10W, Ta-40Nb) tubings have the following advantages: high melting point, corrosion-resistant, facilely-processed in cold environments.

They are widely applied in chemical industry, high temperature technology field, atomic energy industry to build reaction container and heat exchanger, pipe, condensator, clip heater, helix loop, U-pipe in the chemical courses, thermocouple with its protective pipe, liquid state metal container and pipe etc.

Standards: ASTM B 521－98 GB/T 8182－1987