Tungsten's unique properties as a high performance material, including a melting point of 3410° C, low vapor pressure at elevated temperatures and low coefficient of thermal expansion, make tungsten rod of value in a variety of high temperature products and processes.
Important applications of cleaned tungsten wire are for the production
of coiled incandescent lamp filaments, cathode and support structures for power tubes, heating elements for high temperature furnaces and
evaporation sources in metalizing processes.
Composite tungsten electrodes are electrodes adding two or two more rare earth oxides into tungsten, which are complementary to better their welding performance. Thus, they become extraordinary in electrodes family.