Appendix I Operation parameter recommendation
Generally, welding current is adequate to welding electrode according with as
following:
electrode
specification
φ2.5
φ3.2
φ4.0
φ5.0
welding current
70-100A
110-140A
170-220A
230-280A
Welding variables when use TIG.
TIG welding specifications of stainless steel as follows:
Thickness
(mm)
Tungsten
diameter
(mm)
Wire
diameter
(mm)
Type of butt
joint
Welding
current
(A)
Gas flow
(L/min)
0.5
1.0
1.0
plain butt joint
35-40
4-6
0.8
1.0
1.0
wire filling
35-45
4-6
1.0
1.6
1.6
40-70
5-8
1.5
1.6
1.6
50-85
6-8
2.0
2.0-2.5
2.0
80-130
8-10
3.0
2.5-3.0
2.25
120-150
10-12
24
