Model	Oxide addition		Impurites	Tungsten	Color	Standard
	Principal oxide	Contents
WT10	ThO₂	0.8-1.2	≤0.1	Blalance		AWS A5.12 ISO6848 EN 26 848
WT20	ThO₂	1.7-2.2	≤0.1	Blalance
WT30	ThO₂	2.8-3.2	≤0.1	Blalance
WT40	ThO₂	3.6-4.4	≤0.1	Blalance

Our company is the only legal manufacturer accredited "Radiation Safety License"to produce thoriated tungsten in china. Thoriated tungsten electrode contains 0.8%0-4.2%thorium oxide, and its electron work function is 2.7eV. So it can be widely used in various TIG and PAW for its easy and stable arcing. Thorium oxide has strong current-carrying capacity, high recrystallization temperature, better conductivity, stronger mechanical cutting performance and longer service life. When welding, the tip of thoriated tungsten electrode keeps sharpening so that the ball on the tip of tungsten electrode can be not easy to crack at a greater degree of assurance.