● 2% thoriated tungsten contain a nominal 2 wt % or thorium oxide (ThO2).
● The most common type of electrode used today.
● Provides excellent resistance from weld pool contamination.
● Offers the welder easier arc starting capabilities and a more stable arc.
● Generally used for DC electrode negative or straight polarity applications such as Carbon, Stainless steels, Nickel alloys and Titanium.
|WT 20 : 2 % Thoriated Tungsten|
● Contain a minimum of 99.5 wt % tungsten with no other alloying elements.
● Allows the tip to form a clean, balled end which provides good arc stability.
● Can be used with DC but not easy for arc starting.
● Generally used in the welding of Aluminum and Magnesium alloys (AC).
|WP : Pure Tungsten|
● Similar to Thoriated Tungsten.
● Welders can easily replace the radioactive material from Thoriated with this tungsten without changing welding programs.
● Less tip erosion.
● Suitable for DC and AC Welding.
|WL 15 : 1.5 % Lanthanated Tungsten|