White Tip Zirconiated Tungsten 3.2mm SOLD INDIVIDUALLY - Price is per stick Zirconiated Tungsten has good performance in AC welding. Electrodes contain Zirconium Oxide. Minimizes tungsten contamination of the weld. Retains a balled end during welding and performs well on AC. Zirconiated Tungsten is most commonly used for AC welding of aluminium and magnesium alloys. Zirconiated is not recommended for DC welding.