Longevity TIGWELD 250 EX User Manual
Page 15
TIGWELD® 250 EX
Tungsten Chart Guide
Tungsten Type Diameter
040"(1.0mm)
1/16"(1.6mm)
3/32"(2.4mm)
1/8"(3.2mm)
Pure Tungsten
TP-7040
TP-7116
TP-7332
TP-718
2% Thoriated
TT2-7040
TT2-7116
TT2-7332
TT2-718
2% Ceriated
TC2-7040
TC2-7116
TC2-7332
TC2-718
2%
Lanthanated
TL2-7040
TL2-7116
TL2-7332
TL2-718
Amparage-Ac
20-30
30-80
60-130
120-200
Amparge-Dc
15-50
50-120
80-150
130-250
Sharpening a Tungsten
Sharpening a tungsten is very important for a nice fine arc strike. There are auto sharpeners to
place the perfect sharpening point on your tungstens or you can simply use a grinding wheel to
sharpen your tungsten. Remember, after sharpening to a pencil point, you want to flatten the
bottom for a good arc.