wl20 tungsten electrode All Tungsten, Tungsten rods, Tungsten electrodes, Wolfram rods, Wolfram electrodes, Wolfram bars, Tungsten bars. Tungsten Characteristics: In Europe and Japan, Lathanated Tungsten has been the most popular alternative to 2% Thoriated Tungsten for most applications Lanthanated Tungsten is a non-radioactive material with good welding performance. Its electric conductivity is most closed to that of 2% Thoriated Tungsten. Welders can easily replace Thoriated Tungsten Electrodes with Lanthanated without any changes of welding program This tungsten is used primarily for DC welding but will also show good results for AC welding.