Type of Tungsten
Thoriated 1.7 to 2.2%
Lanthanated 1.3 to 1.7%
Zirconiated .15 to .40%
Gold, Black, Blue
Good arc stability for AC. Least expensive.
Easy arc starts, and long life. Replacement for thoriated.
Higher current capacity, greater arc stability, difficult to maintain balled end on AC.
Easy arc starts, high current carrying capacity, similar to thoriated.
Excellent for AC, good arc starting, limited contamination of weld.
Account Manager at Earlbeck Gases & Technologies