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WELDERS ITEM 8201N ÷ 8214N
EDITION: MAY 2008 PAGE 28 OF 32
Stainless steel 18/8 spot welding
Thickness
Spots
minimum
Minimum
overlapping
Electrodes
Electrodes
Force
Welding
current
Welding
time
Obtained
nugget
a
distance
D
d
*
**
d1
mm
mm
mm
mm
mm
daN
kA
kA
cicli
mm
0.2
5
5
5
2.5
90
2
2
3
1.4
0.3
6
6
6
3
120
2.1
2
3
1.4
0.4
8
6
6
3
150
3
2.5
4
2.2
0.5
8
8
6
4
180
4
3.2
4
2.5
0.6
11
10
10
4
235
5
4.1
4
3
0.8
12
10
10
5
295
6
4.8
4
3.3
1
16
11
10
5
410
7.8
6.3
4
4
1.2
20
12
12.5
6
545
9.5
7.5
7
4.8
1.4
22
14
12.5
6
620
10.3
8.3
9
5.3
1.6
25
16
12.5
6
680
11
9
9
5.6
1.8
28
16
16
6
770
12.3
10
10
6.3
2
32
18
16
7
860
14
11
12
7
2.5
35
20
19
8
1090
15.7
12.7
13
7.2
3
50
22
19
10
1500
18
15.5
17
7.65
* for stainless steel with tensile strength up to 100 kg/mm
2
** for stainless steel with tensile strength over 100 kg/mm
2
Crossed rods welding of cold drawn low carbon steel
Rod
Welding time
Set-down 15%
Set-down 30%
diameter
Electrodes Force
Welding
current
Electrodes Force
Welding
current
mm
cicli
daN
kA
daN
kA
1.6
4
45
0.6
68
0.8
3.2
8
56
1.8
117
2.6
4.8
14
160
3.3
270
5
6.35
19
260
4.5
380
6.7
8
25
415
6.2
650
9.3
10
33
495
7.4
925
11.8
11
42
630
9.3
1300
13.8
12.5
50
765
10.3
1530
15.8
N.B. In the welding of reinforced concrete rods there are cases in which with the same parameters you can weld
different diameters, much higher.
