Manufacturers' Standard Gauge for Sheet Steel is based on an
average weight of 41.82 lb (18.96 kg) per square foot per
inch thick.[7] Gauge
is defined differently for ferrous (iron-based) and
non-ferrous metals (e.g., aluminium and brass).
Rate of change in thickness vs gauge number
Standard sheet metal gauges[8][9]
Gauge |
U.S. standard[10][11]
for sheet and plate iron and steel decimal
inch (mm) |
Steel[12]
inch (mm) |
Galvanized steel inch (mm) |
Stainless steel inch (mm) |
Aluminium inch (mm) |
Zinc[12]
inch (mm) |
0000000 |
0.5000 (12.70) |
...... |
...... |
...... |
...... |
...... |
000000 |
0.4688 (11.91) |
...... |
...... |
...... |
...... |
...... |
00000 |
0.4375 (11.11) |
...... |
...... |
...... |
...... |
...... |
0000 |
0.4063 (10.32) |
...... |
...... |
...... |
...... |
...... |
000 |
0.3750 (9.53) |
...... |
...... |
...... |
...... |
...... |
00 |
0.3438 (8.73) |
...... |
...... |
...... |
...... |
...... |
0 |
0.3125 (7.94) |
...... |
...... |
...... |
...... |
...... |
1 |
0.2813 (7.15) |
...... |
...... |
...... |
...... |
...... |
2 |
0.2656 (6.75) |
...... |
...... |
...... |
...... |
...... |
3 |
0.2500 (6.35) |
0.2391 (6.07) |
...... |
...... |
...... |
0.006 (0.15) |
4 |
0.2344 (5.95) |
0.2242 (5.69) |
...... |
...... |
...... |
0.008 (0.20) |
5 |
0.2188 (5.56) |
0.2092 (5.31) |
...... |
...... |
...... |
0.010 (0.25) |
6 |
0.2031 (5.16) |
0.1943 (4.94) |
...... |
...... |
0.162 (4.1) |
0.012 (0.30) |
7 |
0.1875 (4.76) |
0.1793 (4.55) |
...... |
0.1875 (4.76) |
0.1443 (3.67) |
0.014 (0.36) |
8 |
0.1719 (4.37) |
0.1644 (4.18) |
0.1681 (4.27) |
0.1719 (4.37) |
0.1285 (3.26) |
0.016 (0.41) |
9 |
0.1563 (3.97) |
0.1495 (3.80) |
0.1532 (3.89) |
0.1563 (3.97) |
0.1144 (2.91) |
0.018 (0.46) |
10 |
0.1406 (3.57) |
0.1345 (3.42) |
0.1382 (3.51) |
0.1406 (3.57) |
0.1019 (2.59) |
0.020 (0.51) |
11 |
0.1250 (3.18) |
0.1196 (3.04) |
0.1233 (3.13) |
0.1250 (3.18) |
0.0907 (2.30) |
0.024 (0.61) |
12 |
0.1094 (2.78) |
0.1046 (2.66) |
0.1084 (2.75) |
0.1094 (2.78) |
0.0808 (2.05) |
0.028 (0.71) |
13 |
0.0938 (2.38) |
0.0897 (2.28) |
0.0934 (2.37) |
0.094 (2.4) |
0.072 (1.8) |
0.032 (0.81) |
14 |
0.0781 (1.98) |
0.0747 (1.90) |
0.0785 (1.99) |
0.0781 (1.98) |
0.0641 (1.63) |
0.036 (0.91) |
15 |
0.0703 (1.79) |
0.0673 (1.71) |
0.0710 (1.80) |
0.07 (1.8) |
0.057 (1.4) |
0.040 (1.0) |
16 |
0.0625 (1.59) |
0.0598 (1.52) |
0.0635 (1.61) |
0.0625 (1.59) |
0.0508 (1.29) |
0.045 (1.1) |
17 |
0.0563 (1.43) |
0.0538 (1.37) |
0.0575 (1.46) |
0.056 (1.4) |
0.045 (1.1) |
0.050 (1.3) |
18 |
0.0500 (1.27) |
0.0478 (1.21) |
0.0516 (1.31) |
0.0500 (1.27) |
0.0403 (1.02) |
0.055 (1.4) |
19 |
0.0438 (1.11) |
0.0418 (1.06) |
0.0456 (1.16) |
0.044 (1.1) |
0.036 (0.91) |
0.060 (1.5) |
20 |
0.0375 (0.95) |
0.0359 (0.91) |
0.0396 (1.01) |
0.0375 (0.95) |
0.0320 (0.81) |
0.070 (1.8) |
21 |
0.0344 (0.87) |
0.0329 (0.84) |
0.0366 (0.93) |
0.034 (0.86) |
0.028 (0.71) |
0.080 (2.0) |
22 |
0.0313 (0.80) |
0.0299 (0.76) |
0.0336 (0.85) |
0.031 (0.79) |
0.025 (0.64) |
0.090 (2.3) |
23 |
0.0281 (0.71) |
0.0269 (0.68) |
0.0306 (0.78) |
0.028 (0.71) |
0.023 (0.58) |
0.100 (2.5) |
24 |
0.0250 (0.64) |
0.0239 (0.61) |
0.0276 (0.70) |
0.025 (0.64) |
0.02 (0.51) |
0.125 (3.2) |
25 |
0.0219 (0.56) |
0.0209 (0.53) |
0.0247 (0.63) |
0.022 (0.56) |
0.018 (0.46) |
...... |
26 |
0.0188 (0.48) |
0.0179 (0.45) |
0.0217 (0.55) |
0.019 (0.48) |
0.017 (0.43) |
...... |
27 |
0.0172 (0.44) |
0.0164 (0.42) |
0.0202 (0.51) |
0.017 (0.43) |
0.014 (0.36) |
...... |
28 |
0.0156 (0.40) |
0.0149 (0.38) |
0.0187 (0.47) |
0.016 (0.41) |
0.0126 (0.32) |
...... |
29 |
0.0141 (0.36) |
0.0135 (0.34) |
0.0172 (0.44) |
0.014 (0.36) |
0.0113 (0.29) |
...... |
30 |
0.0125 (0.32) |
0.0120 (0.30) |
0.0157 (0.40) |
0.013 (0.33) |
0.0100 (0.25) |
...... |
31 |
0.0109 (0.28) |
0.0105 (0.27) |
0.0142 (0.36) |
0.011 (0.28) |
0.0089 (0.23) |
...... |
32 |
0.0102 (0.26) |
0.0097 (0.25) |
...... |
...... |
...... |
...... |
33 |
0.0094 (0.24) |
0.0090 (0.23) |
...... |
...... |
...... |
...... |
34 |
0.0086 (0.22) |
0.0082 (0.21) |
...... |
...... |
...... |
...... |
35 |
0.0078 (0.20) |
0.0075 (0.19) |
...... |
...... |
...... |
...... |
36 |
0.0070 (0.18) |
0.0067 (0.17) |
...... |
...... |
...... |
...... |
37 |
0.0066 (0.17) |
0.0064 (0.16) |
...... |
...... |
...... |
...... |
38 |
0.0063 (0.16) |
0.0060 (0.15) |
...... |
...... |
...... |
......
|
|