Tweco 250i Multi Process Welding Inverter 2RT Wire Feeder - Manual (Page 76)

TRANSMIG 250I BASIC WELDING
BASIC WELDING 4-20 Manual 0-5187
Base Metal
Thickness
DC Current
for Mild
Steel
DC Current
for Stainless
Steel
Tungsten
Electrode
Diameter
Filler Rod
Diameter (if
required)
Argon Gas
Flow Rate
Litres/min
Joint Type
1.0mm 35-45
40-50
20-30
25-35
1.0mm 1.6mm 5-7 Butt/Corner
Lap/Fillet
1.2mm 45-55
50-60
30-45
35-50
1.0mm 1.6mm 5-7 Butt/Corner
Lap/Fillet
1.6mm 60-70
70-90
40-60
50-70
1.6mm 1.6mm 7 Butt/Corner
Lap/Fillet
3.2mm 80-100
90-115
65-85
90-110
1.6mm 2.4mm 7 Butt/Corner
Lap/Fillet
4.8mm 115-135
140-165
100-125
125-150
2.4mm 3.2mm 10 Butt/Corner
Lap/Fillet
6.4mm 160-175
170-200
135-160
160-180
3.2mm 4.0mm 10 Butt/Corner
Lap/Fillet
Table 4-10
TIG Welding is generally regarded as a specialised process that requires operator competency. While many of the
principles outlined in the previous Arc Welding section are applicable a comprehensive outline of the TIG Welding
process is outside the scope of this Operating Manual. For further information please refer to www.thermadyne.com
or contact Cigweld.