Specifications

Transtig 200Pi, 250Pi, 300Pi
33
13.4 Welding Parameters for Stainless Steel
Base Metal
Thickness
DC Current
Range for
Mild Steel
DC Current
Range for
Stainless Steel
Filler Rod Dia.
(if required)
Argon Gas
Flow Rate
Litres/min.
Joint Type
35-45 20-30 Butt/Corner
1.0mm
40-50 25-35
1.6mm 5-7
Lap/ Fillet
45-55 30-45 Butt/Corner
1.2mm
50-60 35-50
1.6mm 7
Lap/ Fillet
60-70 40-60 Butt/Corner
1.6mm
70-90 50-70
1.6mm
7
7
Lap/ Fillet
80-100 65-85 Butt/Corner
3.2mm
90-115 90-110
2.4mm 7
Lap/ Fillet
115-135 100-125 Butt/Corner
4.8mm
140-165 125-150
3.2mm 10
Lap/ Fillet
160-175 135-160 Butt/Corner
6.4mm
170-200 160-180
4.0mm 10
Lap/ Fillet
Table 11 - TIG welding parameters
13.5 Guide for Selecting Filler Wire Diameter
Welding Current (A) Filler Wire Diameter (mm). Refer to NOTE 6.
10-20 1.2
20-50 1.2 - 1.6
50 – 100 1.6 - 2.4
100 – 200 1.6 - 3.2
Table 12 - Filler wire selection guide
NOTE 6
The filler wire diameter specified in Table 12 is a guide only, other diameter wires may be used according to
the welding application.
13.6 Shielding Gas Selection
Alloy Shielding Gas
Argoshield is a registered trade mark of BOC Gases Limited.
Carbon Steel Welding Argon; 100% Ar
Stainless Steel Welding Argon, Argoshield 71T, 80T, 81T
Nickel Alloy Welding Argon, Argoshield 71T
Copper Welding Argon, Argoshield 81T
Titanium Welding Argon, Argoshield 80T, 81T
Table 13 - Shielding gas selection