Pure tungsten electrode is the earliest electrode to be used in TIG welding. It contains tungsten content minimum 99.5%, without other impurities. Pure tungsten electrode has a very high electron output, low vapor pressure, low resistance, good conductivity, thermal expansion, high elastic modulus of elasticity.

Pure tungsten electrode is the earliest electrode to be used in TIG welding. It contains tungsten content minimum 99.5%, without other impurities. Pure tungsten electrode has a very high electron output, low vapor pressure, low resistance, good conductivity, thermal expansion, high elastic modulus of elasticity.