The doping element cerium oxide makes this TIG welding electrode more resilient than an electrode with pure tungsten – but less than the E3® and lanthanum electrodes. This type of tungsten electrode is used primarily in the medium and lower current range for welding unalloyed and high-alloy steels as well as aluminum, copper, nickel, titanium and magnesium alloys. They can be used for both alternating current welding and direct current welding – however, less well than the E3^® electrode from ABICOR BINZEL.