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WT Conversion
Conversion Factors

 

 


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Wall Thickness Conversion
SWG
Wall Thickness
BWG
Wall Thickness
USG
Wall Thickness
in
mm
in
mm
in
mm
0 SWG
0.324
8.230
0 BWG
0.340
8.636
1 SWG 
0.300
7.620
1 BWG 
0.300
7.620
2 SWG
0.276
7.010
2 BWG
0.284
7.214
3 SWG
0.252
6.401
3 BWG
0.259
6.579
4 SWG
0.232
5.893
4 BWG
0.238
6.045
5 SWG
0.212
5.385
5 BWG
0.220
5.588
6 SWG
0.192
4.877
6 BWG
0.203
5.156
6 USG
0.2031
5.159
7 SWG
0.176
4.470
7 BWG
0.180
4.572
7 USG
0.1875
4.763
8 SWG
0.160
4.064
8 BWG
0.165
4.191
8 USG
0.1719
4.366
9 SWG
0.144
3.658
9 BWG
0.148
3.759
9 USG
0.1563
3.970
10 SWG
0.128
3.251
10 BWG
0.134
3.404
10 USG
0.1406
3.571
11 SWG
0.116
2.946
11 BWG
0.120
3.048
11 USG
0.1250
3.175
12 SWG
0.104
2.642
12 BWG
0.109
2.769
12 USG
0.1094
2.779
13 SWG
0.092
2.337
13 BWG
0.095
2.413
13 USG
0.0938
2.383
14 SWG
0.080
2.032
14 BWG
0.083
2.108
14 USG
0.0781
1.984
15 SWG
0.072
1.829
15 BWG
0.072
1.829
15 USG
0.0703
1.786
16 SWG
0.064
1.626
16 BWG
0.065
1.651
16 USG
0.0625
1.588
17 SWG
0.056
1.422
17 BWG
0.058
1.473
17 USG
0.0563
1.430
18 SWG
0.048
1.219
18 BWG
0.049
1.245
18 USG
0.0500
1.270
19 SWG
0.040
1.016
19 BWG
0.042
1.067
19 USG
0.0438
1.113
20 SWG
0.036
0.914
20 BWG
0.035
0.889
20 USG
0.0375
0.953
21 SWG
0.032
0.813
21 BWG
0.032
0.813
21 USG
0.0344
0.874
22 SWG
0.028
0.711
22 BWG
0.028
0.711
22 USG
0.0313
0.795
23 SWG
0.024
0.610
23 BWG
0.025
0.635
23 USG
0.0218
0.554
24 SWG
0.022
0.559
24 BWG
0.022
0.559
24 USG
0.025
0.635
25 SWG
0.020
0.508
25 BWG
0.020
0.508
25 USG
0.0219
0.556
26 SWG
0.0180
0.457
26 BWG
0.018
0.457
26 USG
0.0188
0.478
27 SWG
0.0164
0.417
27 BWG
0.016
0.406
27 USG
0.0172
0.437
28 SWG
0.0148
0.376
28 BWG
0.014
0.356
28 USG
0.0156
0.396
29 SWG
0.0136
0.345
29 BWG
0.013
0.330
29 USG
0.0141
0.358
30 SWG
0.0124
0.315
30 BWG
0.012
0.305
30 USG
0.0125
0.318
31 SWG
0.0116
0.295
31 BWG
0.010
0.254
31 USG
0.0109
0.277
32 SWG
0.0108
0.274
32 BWG
0.009
0.229
32 USG
0.0102
0.259
33 SWG
0.0100
0.254
33 BWG
0.008
0.203
33 USG
0.0094
0.239
34 SWG
0.0092
0.234
34 BWG
0.007
0.178
34 USG
0.0086
0.218
35 SWG
0.0084
0.213
35 BWG
0.005
0.127
35 USG
0.0078
0.198
36 SWG
0.0076
0.193
36 BWG
0.004
0.102
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