Select your diameter and length to see pricing. Refresh page to view all options.99.95% pure tungsten. Wire is clean and straightened. Finish is electropolished. Uses of this wire include medical devices, LEEP and LEED electrodes, corona generation, vacuum heating elements, filaments, ultra-high tensile strength piano wire alternative, and thermionic emitters.Conforms to ASTM F288-96, Type 1A.1 kg (spool) Length:.04" - 209.68 ft.05" - 134.19 ft