TIG (GTAW) Welding 7-6 0-5492
Tungsten Electrode Types
Electrode Type
(Ground Finish)
Welding Application Features Colour Code
Ceriated 2%
AC & DC welding of mild
steel, stainless steel, copper,
aluminium, magnesium and their
alloys
Longer life, More stable
arc, Easier starting, Wider
current range, Narrower more
concentrated arc.
Grey
Table 7-3
TIG Welding Filler Rods
Comweld
Rod
Aust Std AWS Std Part No.
1.6mm
Part No.
2.4mm
Part No.
3.2mm
Type/Application
LW1
LW1-6
Supersteel
R4
R6
R2
ER70S-4
ER70S-6
ER70S-2
321411
321417
321370
—
—
—
—
—
—
For mild-medium strength steels.
Pipes, tubing, roll cages, etc.
CrMo1
CrMo2
RB2
RB3
ER80S-B2
ER90S-B3
—
—
321379
321383
—
—
For welding of high strength
Cr-Mo steels used at elevated
temperatures.
308L
309L
316L
R308L
R309L
R316L
ER308L
ER309L
ER316L
321406
321403
321400
321407
321404
321401
—
—
—
For stainless steels. Stainless pipes,
tubing, architectural uses, etc.
Table 7-4
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
0.040”
1.0mm
35-45
40-50
20-30
25-35
0.040”
1.0mm
1/16”
1.6mm
5-7 Butt/Corner
Lap/Fillet
0.045”
1.2mm
45-55
50-60
30-45
35-50
0.040”
1.0mm
1/16”
1.6mm
5-7 Butt/Corner
Lap/Fillet
1/16”
1.6mm
60-70
70-90
40-60
50-70
1/16”
1.6mm
1/16”
1.6mm
7 Butt/Corner
Lap/Fillet
1/8”
3.2mm
80-100
90-115
65-85
90-110
1/16”
1.6mm
3/32”
2.4mm
7 Butt/Corner
Lap/Fillet
3/16”
4.8mm
115-135
140-165
100-125
125-150
3/32”
2.4mm
1/8”
3.2mm
10 Butt/Corner
Lap/Fillet
1/4”
6.4mm
160-175
170-200
135-160
160-180
1/8”
3.2mm
5/32”
4.0mm
10 Butt/Corner
Lap/Fillet
Table 7-5
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.
cigweld.com.au or contact Cigweld.
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