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The comprehensive performance of thoriated tungsten is very good. The electron emission is strong and the electron work function is 2.7eV.what is more,with high current load ability,stable arc thoirated tungsten electrode can bear long-term welding.It is very often been used for D.C.welding of carbon steel stainless steel,nickel alloy and titanium alloy.

 

Model	Oxide Addictive		Impurities content	Tungsten contents	Color standard
	Varieties	Content%
WT40	ThO2	3.80-4.20	<0.2	balance	Orange