EWLa-1.5 designates a tungsten electrode containing 1.3-1.5 wt-% of dispersed lanthanum oxide (La2O3) for enhanced arc starting and stability, reduced tip erosion rate, and extended operating current range. These electrodes can be used as nonradioactive substitutes for 2% thoriated tungsten as the operating characteristics are very similar. Lanthanated tungsten can be used for both DC and AC applications.
.020″, .040″, 1/16″, 3/32″, 1/8″,
5/32″, 3/16″ & 1/4″