Welding Consumables " WQTB Tungsten Electrodes"
Thoriated Tungsten Electrode
2% thoriated tungsten contains a nominal 2wt-% or thorium oxide (ThO2) that
is evenly dispersed throughout the entire length of the tungsten.
The most common
type of tungsten used today. Provides excellent resistance from weld pool contamination while at the same time
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 and stainless steels, nickel alloys and titanium
Designation |
Dioxide |
Oxide Compound % |
Impurities % |
Tungsten % |
Color Mark |
WT10 |
ThO2 |
0.80-1.20 |
≤0.02 |
Remainder |
Yellow |
WT20 |
ThO2 |
1.70-2.20 |
≤0.02 |
Remainder |
Red |
WT30 |
ThO2
|
2.80-3.20 |
≤0.02 |
Remainder |
Purple |
WT40 |
ThO2 |
3.80-4.20 |
≤0.02 |
Remainder |
Orange |
more information
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