O.D. IN Wall Thickness
Gauge 20 GA 18 GA 16 GA 14
GA
12 GA 11 GA 9 GA 7 GA
Inches .035″ .049″ .062″ .083″ .109″ .120″ .148″ .180″ .250″ .375″
1/2 0.17 0.23 0.30
5/8 0.22 0.30 0.39 0.48
3/4 0.27 0.37 0.48 0.59
7/8 0.31 0.43 0.56 0.70
1 0.36 0.49 0.65 0.81 1.04 1.13
1.050 0.38 0.52 0.68 0.86 1.13 1.23
1-1/8 0.41 0.56 0.74 0.92 1.18 1.29
1-1/4 0.45 0.63 0.83 1.03 1.33 1.45
1-5/16 0.88 1.09 1.42 1.53
1-3/8 0.51 0.69 0.91 1.15 1.47 1.61
1-1/2 0.55 0.76 0.99 1.25 1.62 1.77
1.5/8 0.59 0.82 1.08 1.37 1.76 1.93
1.660 1.12 1.40 1.82 1.99 2.29
1-3/4 0.64 0.89 1.17 1.48 1.91 2.09
1-7/8 0.96 1.26 1.59 2.06 2.25
1.900 0.70 0.97 1.27 1.61 2.09 2.26 2.72
2 0.73 1.02 1.34 1.70 2.20 2.41 3.50
2-1/4 1.49 1.88 2.49 2.66
2-3/8 1.21 1.60 2.03 2.64 2.89 3.65
2-1/2 1.28 1.69 2.14 2.78 3.05 4.45
2-7/8 1.93 2.45 3.17 3.48 5.79
3 1.54 2.04 2.59 3.37 3.70
3-1/8 2.15 2.72 3.54 3.88 5.68 7.67
3-1/2 1.81 2.38 3.03 3.95 4.33 5.30 6.38
3-3/4 3.29 4.29 4.78 5.69 6.86
4 3.47 4.49 4.97