Model	OxideAddictive		Impurities Content	Tungsten Content	Color Standard
	Varieties	Content%
WL10	La₂O₃	0.80 - 1.20	<0.2	Remainder	Black
WL15	La₂O₃	1.30 - 1.70	<0.2	Remainder	Gold
WL20	La₂O₃	1.80 - 2.20	<0.2	Remainder	Sky Blue

WLa (Lanthanum-Tungsten Electrode )

Lanthanum-Tungsten Electrode is well known for its good welding performance .It is the electrode added with 1-2% of la2o3.The power of its electronic transgression is2.7-2.8ev,Its arc features and burn spoilage endurance are better under the small or medium currents condition.its another advantage is the endurance of high current and low burn spoilage rate .

Lanthanum tungsten electrode has the characteristics of better mechanical cutting performance, better anti-creep performance,high recrystallization temperature and good ductility. At the same time it is an alternative product of thorium tungsten electrode which has a promising prospect because of its non-radioactivity. the most popular electrode material in the world.