Pure Tungsten Electrode

Pearl Overseas is a reliable organization engaged in Manufacturing, Suppling, Exporting & Importing for Tungsten Electrode.Introduction. Tungsten electrodes are used when arc welding with the Tungsten Inert gas (TIG) process or when plasma welding. In both processes the electrode, arc and weld pool are protected from atmospheric contamination by an inert gas.What are the applications of tungsten electrodes?Pure tungsten electrodes provide a stable Stable arc for AC welding. It can be used for DC, but typically is not. Common used with aluminum base materials. Zirconiated tungsten electrodes are most often used for applications where the surface melting point is higher than inner materials.E3 tungsten electrodes (AWS classification EWG) contain a minimum of 98% percent tungsten and up to 1.5 percent Lanthanum and small percentages of Zirconium and Yttrium they are called E3 Tungsten Product Grade Chemical Composition Impurities%, ≤ W content% Oxide Content(%) Pure Tungsten Electrode WP None N/A 0.5 99.95 Cerium Tungsten Electrode WC20 CeO2 1.8~2.2 0.5 Balance LanthanumTungsten Electrode WL10 La2O3 0.8~1.2 0.5 Balance WL15 La2O3 1.3~1.7 0.5 Balance WL20 La2O3 1.8~2.2 0.5 Balance ThoriumTungsten Electrode WT10 ThO2 0.8~1.2 0.5 Balance WT20 ThO2 1.8~2.2 0.5 Balance WT30 ThO2 2.8~3.2 0.5 Balance Zirconium Tungsten Electrode WZ3 ZrO2 0.15~0.50 0.5 Balance WZ8 ZrO2 0.7~0.9 0.5 Balance