good quality WT20 welding electrode 1. It is fine and close product with grey metallic luster. 2.. Diameter: 16mm-100mm

Thoriated tungsten electrode is the most widely used welding material. 2% Thoriated Tungsten contains 2% thorium oxide (ThO 2 ) that is dispersed inside the whole length of the Tungsten rod.2% Tungsten electrode provides excellent resistance from weld pool contamination and offers the welder easier arc starting capabilities and a more stable arc. Application : Generally used for DC electrode negative or straight polarity applications such as carbon & stainless steels, nickel alloys and titanium. carbon steel, stainless steel, nickel alloy and titanium metal. It is the first selection material for high quality welding.  

Model	Intermingled materials	Intermingled  Quantity%	Color standard
WT10	THO2	0.90-1.20	yellow
WT20	THO2	1.80-2.20	red
WT30	THO2	2.80-3.20	purple
WT40	THO2	3.80-4.20	orange

tungsten electrode for tig welding