M
ATERIALS
FOR
S
ETTING
W
ELDING
C
ONDITIONS
R
EFERENCE
M
ATERIALS
C
HAPTER
10
146
Example for welding conditions of downward fillet
Example for welding conditions of I shape butt (without backing plate)
15/32 (12.0)
9/32 to 5/16
(7.0 to 8.0)
.045 (1.2)
300 to 340
32 to 34
12 to 14
(30 to 35)
42 to 53
(20 to 25)
Plate thickness
t [in. (mm)]
Leg length
L [in. (mm)]
Wire diameter
[in. (mm)
ƕ
]
Current
(A)
Voltage
(V)
Travel speed
[IPM (cm/min)]
CO
2
-
gas flow rate
[CFH (L/min)]
18 ga. (1.2)
3/32 to 1/8
(2.5 to 3.0)
.035, .040
(0.9, 1.0)
70 to 100
18 to 19
20 to 24
(50 to 60)
21 to 32
(10 to 15)
16 ga. (1.6)
3/32 to 1/8
(2.5 to 3.0)
.035 to .045
(0.9 to 1.2)
90 to 120
18 to 20
20 to 24
(50 to 60)
21 to 32
(10 to 15)
14 ga. (2.0)
1/8 to 9/64
(3.0 to 3.5)
.035 to .045
(0.9 to 1.2)
100 to 130
19 to 20
20 to 24
(50 to 60)
32 to 42
(15 to 20)
12 ga. (2.3)
1/8 to 9/64
(3.0 to 3.5)
.035 to .045
(0.9 to 1.2)
120 to 140
19 to 21
20 to 24
(50 to 60)
32 to 42
(15 to 20)
1/8 (3.2)
1/8 to 5/32
(3.0 to 4.0)
.035 to .045
(0.9 to 1.2)
130 to 170
20 to 22
18 to 22
(45 to 55)
32 to 42
(15 to 20)
11/64 (4.5)
5/32 to 11/64
(4.0 to 4.5)
.045 (1.2)
200 to 250
23 to 26
18 to 22
(45 to 55)
32 to 42
(15 to 20)
15/64 (6.0)
13/64 to 15/64
(5.0 to 6.0)
.045 (1.2)
280 to 300
29 to 32
16 to 20
(40 to 50)
32 to 42
(15 to 20)
23/64 (9.0)
15/64 to 5/16
(6.0 to 8.0)
.045 (1.2)
300 to 350
32 to 34
16 to 18
(40 to 45)
32 to 42
(15 to 20)
15/32 (12.0)
25/64 to 15/32
(10.0 to 12.0)
.045 (1.2)
320 to 350
33 to 36
10 to 14
(25 to 35)
42 to 53
(20 to 25)
Plate thickness
t [in. (mm)]
Root opening
g [in. (mm)]
Wire diameter
[in. (mm)
ƕ
]
Current
(A)
Voltage
(V)
Travel speed
[IPM (cm/min)]
CO
2
-
gas flow rate
[CFH (L/min)]
Number of
layers
18 ga. (1.2)
0
.035, .040
(0.9, 1.0)
70 to 80
17 to 18
18 to 22
(45 to 55)
21 (10)
1
16 ga. (1.6)
0
.035, .040
(0.9, 1.0)
80 to 100
18 to 19
18 to 22
(45 to 55)
21 to 32
(10 to 15)
1
14 ga. (2.0)
0 to 1/64
(0 to 0.5)
.035, .040
(0.9, 1.0)
100 to 110
19 to 20
20 to 22
(50 to 55)
21 to 32
(10 to 15)
1
12 ga. (2.3)
1/64 to 3/64
(0.5 to 1.0)
.035, .045
(0.9, 1.2)
110 to 130
19 to 20
20 to 22
(50 to 55)
21 to 32
(10 to 15)
1
1/8 (3.2)
3/64 to 3/64
(1.0 to 1.2)
.035, .045
(0.9, 1.2)
130 to 150
19 to 21
16 to 20
(40 to 50)
21 to 32
(10 to 15)
1
11/64 (4.5)
3/64 to 1/16
(1.2 to 1.5)
.045 (1.2)
150 to 170
21 to 23
16 to 20
(40 to 50)
21 to 32
(10 to 15)
1
15/64 (6.0)
3/64 to 1/16
(1.2 to 1.5)
.045 (1.2)
220 to 260
24 to 26
16 to 20
(40 to 50)
32 to 42
(15 to 20)
Front:1
2
Back:1
23/64 (9.0)
3/64 to 1/16
(1.2 to 1.5)
.045 (1.2)
320 to 340
32 to 34
18 to 22
(45 to 55)
32 to 42
(15 to 20)
Front:1
2
Back:1
Plate thickness
t [in. (mm)]
Leg length
L [in. (mm)]
Wire diameter
[in. (mm)
ƕ
]
Current
(A)
Voltage
(V)
Travel speed
[IPM (cm/min)]
CO
2
-
gas flow rate
[CFH (L/min)]