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Heat exchanger/boiler tubes to the process industries.
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A Conversion Chart covering tube wall thickness detail for BWG/SWG Equivalents in inches and millimetres.
SWG | inches | mm | ||
---|---|---|---|---|
0 | .324 | 8.230 | ||
1 | .300 | 7.620 | ||
2 | .276 | 7.010 | ||
3 | .252 | 6.401 | ||
4 | .232 | 5.893 | ||
5 | .212 | 5.385 | ||
6 | .192 | 4.877 | ||
7 | .176 | 4.470 | ||
8 | .160 | 4.064 | ||
9 | .144 | 3.658 | ||
10 | .128 | 3.251 | ||
11 | .116 | 2.946 | ||
12 | .104 | 2.642 | ||
13 | .092 | 2.337 | ||
14 | .080 | 2.032 | ||
15 | .072 | 1.829 | ||
16 | .064 | 1.626 | ||
17 | .056 | 1.422 | ||
18 | .048 | 1.219 | ||
19 | .040 | 1.016 | ||
20 | .036 | 0.914 | ||
21 | .032 | 0.813 | ||
22 | .028 | 0.711 | ||
23 | .024 | 0.610 | ||
24 | .022 | 0.559 | ||
25 | .020 | 0.508 |
BWG | inches | mm | ||
---|---|---|---|---|
0 | .340 | 8.636 | ||
1 | .300 | 7.620 | ||
2 | .284 | 7.213 | ||
3 | .259 | 6.578 | ||
4 | .238 | 6.045 | ||
5 | .220 | 5.588 | ||
6 | .203 | 5.516 | ||
7 | .180 | 4.572 | ||
8 | .165 | 4.190 | ||
9 | .148 | 3.759 | ||
10 | .134 | 3.403 | ||
11 | .120 | 3.048 | ||
12 | .109 | 2.768 | ||
13 | .095 | 2.413 | ||
14 | .083 | 2.108 | ||
15 | .072 | 1.829 | ||
16 | .065 | 1.651 | ||
17 | .058 | 1.473 | ||
18 | .049 | 1.244 | ||
19 | .042 | 1.067 | ||
20 | .035 | 0.889 | ||
21 | .032 | 0.812 | ||
22 | .028 | 0.711 | ||
23 | .025 | 0.635 | ||
24 | .022 | 0.559 | ||
25 | .020 | 0.508 |