OTC DP-400 - Example Welding Conditions of down Fillet; Example Welding Conditions of I Shape Butt Without Backing Plate

No. P10355
 |21|
9. WELDING PREPARATION (continued)
(2) Example Welding Conditions of Down Fillet
Plate
thickness
t (in [mm])
Leg
length
l (in [mm])
Wire
diameter
(in [mm]

)
Welding
current
(A)
Arc
voltage
(V)
Welding
speed
(ft [cm]/min)
CO
2
gas
flow rate
(gal [Ɛ]/min)
0.047 [1.2] 0.098-0.118
[2.5
|
3.0]
0.035
[0.9, 1.0]
70
|
100 18
|
19
1.6-2.0
[50
|
60]
2.6-4.0
[10
|
15]
0.063 [1.6] 0.098-0.118
[2.5
|
3.0]
0.035-0.045
[0.9
|
1.2]
90
|
120 18
|
20
1.6-2.0
[50
|
60]
2.6-4.0
[10
|
15]
0.079 [2.0] 0.118-0.138
[3.0
|
3.5]
0.035-0.045
[1.0
|
1.2]
100
|
130 19
|
20
1.6-2.0
[50
|
60]
4.0-5.3
[15
|
20]
0.091 [2.3] 0.118-0.138
[3.0
|
3.5]
0.035-0.045
[1.0
|
1.2]
120
|
140 19
|
21
1.6-2.0
[50
|
60]
4.0-5.3
[15
|
20]
0.126 [3.2] 0.118-0.157
[3.0
|
4.0]
0.035-0.045
[1.0
|
1.2]
130
|
170 20
|
22
1.5-1.8
[45
|
55]
4.0-5.3
[15
|
20]
0.177 [4.5] 0.157-0.177
[4.0
|
4.5]
0.045 [1.2]
200
|
250 23
|
26
1.5-1.8
[45
|
55]
4.0-5.3
[15
|
20]
0.236 [6.0] 0.197-0.236
[5.0
|
6.0]
0.045 [1.2]
280
|
300 29
|
32
1.3-1.6
[40
|
50]
4.0-5.3
[15
|
20]
0.354 [9.0] 0.236-0.315
[6.0
|
8.0]
0.045 [1.2]
300
|
350 32
|
34
1.3-1.5
[40
|
45]
4.0-5.3
[15
|
20]
12.0 [0.472] 0.394-0.472
[10.0
|
12.0]
0.045 [1.2]
320
|
350 33
|
36
0.8-1.1
[25
|
35]
5.3-6.6
[20
|
25]
(3) Example Welding Conditions of I Shape Butt without Backing Plate
Plate
thickness
t (in [mm])
Root
gap
g (in [mm])
Wire
diameter
(in [mm]

)
Welding
current
(A)
Arc
voltage
(V)
Welding
speed
(ft [cm]/min)
CO
2
gas
flow rate
(gal [Ɛ]/min)
Number
of
layers
0.047 [1.2] 0 0.035
[0.9, 1.0]
70
|
80 17
|
18
1.5-1.8
[45
|
55]
2.6
[10]
1
0.063 [1.6] 0 0.035
[0.9, 1.0]
80
|
100 18
|
19
1.5-1.8
[45
|
55]
2.6-4.0
[10
|
15]
1
0.079 [2.0] 0-0.02
[0
|
0.5]
0.035
[0.9, 1.0]
100
|
110 19
|
20
1.6-1.8
[50
|
55]
2.6-4.0
[10
|
15]
1
0.091 [2.3] 0.02-0.039
[0.5
|
1.0]
0.035-0.045
[0.9
|
1.2]
110
|
130 19
|
20
1.6-1.8
[50
|
55]
2.6-4.0
[10
|
15]
1
0.126 [3.2] 0.039-0.047
[1.0
|
1.2]
0.035-0.045
[0.9
|
1.2]
130
|
150 19
|
21
1.3-1.6
[40
|
50]
2.6-4.0
[10
|
15]
1
0.177 [4.5] 0.047-0.059
[1.2
|
1.5]
0.045[1.2]
150
|
170 21
|
23
1.3-1.6
[40
|
50]
2.6-4.0
[10
|
15]
1
Front 1
0.236 [6.0]
0.047-0.059
[1.2
|
1.5]
0.045[1.2]
220
|
260 24
|
26
1.3-1.6
[40
|
50]
4.0-5.3
[15
|
20]
Back 1
2
Front 1
0.354 [9.0]
0.047-0.059
[1.2
|
1.5]
0.045[1.2]
320
|
340 32
|
34
1.5-1.8
[45
|
55]
4.0-5.3
[15
|
20]
Back 1
2