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LAYOUTOPERATION
Be sure to select the best Tungsten for your application. Low amp starts are dicult if too large of Tungsten is
used. Use only lanthanated, ceriated or thoriated Tungsten. Do not use pure Tungsten (marked with green tip).
GENERAL POLARITY RECOMMENDATIONS*
*Follow manufacturer of stick electrode for complete polarity recommendations
PROCESS TORCH POLARITY WORK POLARITY
TIG (GTAW)
- +
STICK (SMAW)
+ -
TIG (GTAW) OPERATION GUIDE FOR STEEL (ALUMINUM)*
*As a general rule, set amperage using 1 amp for every .001” of metal thickness for aluminum. Less is required for DC.
METAL THICKNESS WELDING AMPS
(A)
TUNGSTEN DIA. Ar FLOW RATE
1-3 mm/.040”-1/8” 40-80 (60-125) .040”-3/32” 8-15 CFH
3-6 mm/ 1/8”-1/4” 80-200 (125-200) 3/32”-1/8” 15-25 CFH
6-10 mm 1/4”-3/8” 150-200 (200-250) 1/8”-1/4” 20+ CFH
TUNGSTEN SELECTION GUIDE FOR AN INVERTER
TYPE PERCENT COLOR PROCESS RECOMMENDATION
Pure
100%
Tungsten
Green AC
NOT RECOMMENDED!
Do not use in an inverter.
Thoriated
(slightly radioactive)
2%
Thorium
Red AC/DC
YES. Great for all
purpose welding. Most
economical.
Ceriated 2% Ceria Orange AC/DC
YES. Good for low
amp use.
Lanthanated
1.5%
Lanthanum
Gold AC/DC
YES. Best alternative
to 2% Thoriated. Tough
performer.
Lanthanated
2%
Lanthanum
Blue AC/DC
YES. Slight
advantage over 1.5%
Lanthanated.
Zirconiated
1%
Zirconia
Brown AC
NOT RECOMMENDED!
Do not use in an inverter.
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