The Type WT 30 'purple' consists of 97% tungsten and 3% radiant thorium. WT-30 is a non-standard electrode for DC welding applications and is not suitable for AC welding.

The thorium content causes (like all oxides) a reduction in the electron work function and thus a higher electron emission. With increasing thorium, ignition - durability - current capacity is improved. The main application is the direct current welding of high and stainless steels.

Diameter: 1.0-12mm

Length: 50mm, 75mm, 150mm, 175mm and any length requested from customer.