Appendix
OMCTT5621E18
54
14. Appendix
14.1 TIG Welding conditions table - (Reference)
The list of TIG welding conditions (stainless steel)
shown in this chapter is a reference value as a guideline
for standard welding conditions.
In actual welding operations, work out an appropriate
condition in consideration of the shape of substances to
be welded, a welding position, etc.
In case arc is not stable in the low current range, refer to
section “Troubleshooting.”
TIG welding conditions table: Stainless steel (DC)
Thickness of
base metal
Joint
Welding current (A)
Welding
speed
FIller wire
size (Dia.)
Gas flow
rate
mm
Downward
Vertical
Upward
cm/ min
mm
L/ min
0.5
Butt
10 - 15
10 - 15
10 - 15
40
-------------
5
Lap
10 - 15
10 - 15
10 - 15
20
1.0
5
Fillet
10 - 20
10 - 20
10 - 20
40
-------------
5
1.0
Butt
30 - 40
30 - 40
30 - 40
15 - 40
1.2
5
Lap
40 - 50
40 - 50
40 - 50
15 - 30
1.2
5
Fillet
45 - 55
45 - 55
45 - 55
20 - 40
1.2
5
1.5
Butt
60 - 100
60 - 80
60 - 70
15 - 30
1.6
5
Lap
60 - 100
80 - 100
80 - 90
15 - 30
1.6
5
Fillet
60 - 80
60 - 70
60 - 70
20 - 40
1.6
5
T-shape
70 - 90
70 - 90
70 - 90
10 - 20
1.6
5
2.5
Butt
100 - 120
90 - 110
90 - 110
20 - 30
1.6
7
Lap
110 - 130
100 - 120
100 - 120
20 - 30
1.6
7
Fillet
100 - 120
90 - 110
90 - 110
25 - 30
1.6
7
T-shape
110 - 130
100 - 120
100 - 120
15 - 25
1.6
7
3.0
Butt
120 - 140
110 - 130
105 - 125
30
2.4
7
Lap
130 - 150
120 - 140
120 - 140
25
2.4
7
Fillet
120 - 140
110 - 130
115 - 135
30
2.4
7
T-shape
130 - 150
115 - 135
120 - 140
25
2.4
7
4.5
Butt
200 - 250
150 - 200
150 - 200
25
2.4
7
Lap
225 - 275
175 - 225
175 - 225
20
2.4
7
Fillet
200 - 250
150 - 200
150 - 200
25
2.4
7
T-shape
225 - 275
175 - 225
175 - 225
20
2.4
7
6.0
Butt
275 - 350
200 - 250
200 - 250
25
3.2
10
Lap
300 - 375
225 - 275
225 - 275
20
3.2
10
Fillet
275 - 350
200 - 250
200 - 250
25
3.2
10
T-shape
300 - 375
225 - 275
225 - 275
20
3.2
10
12.0
Butt
350 - 450
225 - 275
225 - 275
15
4.0
10
Lap
375 - 475
230 - 280
230 - 280
15
4.0
10
Fillet
275 - 475
230 - 280
230 - 280
15
4.0
10
