Lincoln Electric Invertec STT II Operator's Manual page 17
Lincoln electric invertec stt ii advanced process welder
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Also See for Invertec STT II:
- Technical specifications (8 pages) ,
- Specification sheet (168 pages) ,
- Service manual (145 pages)
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B-6
WELDING PROCEDURES FOR STT II -
(Steel) Horizontal Fillet (See Table B.1 and B.2)
45°
END VIEW
Table B.1
100% CO
Gas Shield (Set for Steel Mode)
2
Plate Thickness " (mm) 20 ga
Electrode size " (mm)
WFS "/min (m/min)
Peak Current
Background Current
Tailout setting
Average Amperage
Travel Speed "/min
(m/min)
Gas Flow cfh (L/min)
Electrical Stickout "
(mm)
Table B.2
75% CO
- 25% Ar Gas Shield (Set for Steel Mode)
2
Plate Thickness " (mm) 20 ga
Electrode size " (mm)
WFS "/min (m/min)
Peak Current
Background Current
Tailout setting
Average Amperage
Travel Speed "/min
(m/min)
Gas Flow cfh (L/min)
Electrical Stickout "
(mm)
OPERATION
DIRECTION
OF
TRAVEL
TOP VIEW
DIRECTION
OF
TRAVEL
FRONT VIEW
14 ga
10 ga
(0.9)
(2.0)
(3.25)
0.035
0.045
0.045
(0.9)
(1.1)
(1.1)
100
100
170
(2.5)
(2.5)
(4.2)
220
260
280
30
40
65
3
7
5
60
105
120
12
12
12
(0.3)
(0.3)
(0.3)
25 (12)
1/4 - 3/8
(6.4 - 10)
14 ga
10 ga
(0.9)
(2.0)
(3.25)
0.035
0.045
0.045
(0.9)
(1.1)
(1.1)
100
100
120
(2.5)
(2.5)
(3.0)
225
270
310
40
65
70
8
4
6
70
110
130
12
12
12
(0.3)
(0.3)
(0.3)
25 (12)
1/4 - 3/8
(6.4 - 10)
INVERTEC STT II
(Stainless Steel) Horizontal Fillet
(See Table B.3 and B.4)
75°
45°
75°
END VIEW
90% He, 7.5% Ar, 2.5% CO
Gas Shield (Set for Steel Mode)
Plate Thickness " (mm) 20 ga
Electrode size " (mm)
WFS "/min (m/min)
Peak Current
Background Current
Tailout setting
Average Amperage
Travel Speed "/min
(m/min)
Gas Flow cfh (L/min)
Electrical Stickout "
(mm)
Gas Shield (Set for Stainless Steel Mode)
Plate Thickness " (mm) 20 ga
Electrode size " (mm)
WFS "/min (m/min)
Peak Current
Background Current
Tailout setting
Average Amperage
Travel Speed "/min
(m/min)
Gas Flow cfh (L/min)
Electrical Stickout "
(mm)
DIRECTION
OF
TRAVEL
TOP VIEW
DIRECTION
OF
TRAVEL
FRONT VIEW
Table B.3
2
14 ga
(0.9)
(2.0)
0.035
0.045
(0.9)
(1.1)
100
130
(2.5)
(3.3)
165
210
35
60
7
7
40
95
12
16
(0.3)
(0.4)
25 (12)
1/4 - 3/8
(6.4 - 10)
Table B.4
98% Ar, 2% O
2
14 ga
(0.9)
(2.0)
0.035
0.045
(0.9)
(1.1)
100
130
(2.5)
(3.3)
145
190
45
95
7
8
60
120
12
12
(0.3)
(0.3)
25 (12)
1/4 - 3/8
(6.4 - 10)
B-6
75°
75°
10 ga
(3.25)
0.045
(1.1)
170
(4.2)
250
85
4
120
16
(0.4)
10 ga
(3.25)
0.045
(1.1)
170
(4.2)
280
95
7
150
12
(0.3)
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