This section is from the book "Practical Sheet And Plate Metal Work", by Evan A. Atkins. Also available from Amazon: Practical Sheet And Plate Metal Work.
Gauge | Lbs. per Square Foot | Thickness. Inches. | Thickness. Mm. |
3/16 | 7.50 | .1874 | 4.770 |
8 | 6.28 | .1570 | 3.988 |
9 | 5.59 | .1398 | 3.551 |
10 | 500 | .1250 | 3.176 |
11 | 4.45 | .1113 | 2.827 |
12 | 3.96 | .0991 | 2.517 |
13 | 352 | .0882 | 2.240 |
14 | 314 | .0785 | 1.994 |
15 | 2.79 | .0699 | 1.775 |
16 | 2.50 | .0625 | 1.587 |
17 | 222 | .0556 | 1.412 |
18 | 1.98 | .0495 | 1.257 |
19 | 1.76 | .0440 | 1.118 |
20 | 1.56 | .0392 | .996 |
21 | 1.39 | .0349 | .886 |
22 | 1.25 | .0312 | .794 |
23 | 1.11 | .0278 | .707 |
24 | .99 | .0247 | .629 |
25 | .88 | .0220 | .560 |
26 | .78 | .0196 | .498 |
27 | .69 | .174 | .443 |
28 | .62 | .0156 | .396 |
29 | .55 | .0139 | .353 |
30 | .49 | .0124 | .315 |
Approximate Gauges of Tinplates | ||||
I .C ......................... | is about 30 W.G. | easy | ||
1 X.......................... | " | 28 | " | " |
1 XX......................... | " | 27 | " | " |
1 XXX...................... | " | 26 | " | " |
1 XXXX............................. | " | 25 | " | " |
1 XXXXX............................. | " | 24 | " | " |
1 XXXXXX................... | " | 23 | " | |
S.D.C...................... | " | 27 | " | easy |
S.D.X....................... | " | 26 | " | |
S.D. XX...................... | " | 25 | " | |
S.D. XXX ........................ | " | 24 | " | |
S.D. XXXX ..................... | " | 24 | " | full |
S.D. XXXXX...................... | " | 23 | " | |
D.C. XXXXXX......................... | " | 22 | " | full |
D.C........... | " | 28 | " | full |
D.X........................ | " | 26 | " | |
D XX.......................... | " | 25 | " | full |
D XXX.......... | " | 24 | " | |
D XXXX................... | " | 22 | " | |
D XXXXX ................. | " | 21 | " | |
D XXXXXX........................... | " | 20 | " | |
 
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