Tungsten Electrode AWS Classification EWCe-2 Chemical Composition Ceriated Color Gray For Material Type Aluminum Carbon Steel Copper Low-Alloy Steel Magnesium Nickel Stainless Steel Titanium Overall Diameter 1/8 in Overall Length 7 in Welding Current Designation AC/DC Welding Processes TIG Welding (GTAW) Electrode Material Tungsten Features Improved Arc Stability Increased Ease of Starting Reduced Rate of Vaporization or Burn-Off Standards AWS A5.12 Weight 0.19 lb