.png)
Pipe and Tube Conversion
PDF Download: Pipe and Tube Conversions
| Inches | Millimeters | Tube Gauges (GA) | Wall Thickness | |
| 3/8" | 9.525 | |||
| 1/2" | 12.700 | 20 GA | .035" | |
| 5/8" | 15.875 | 18 GA | .047" | |
| 3/4" | 19.050 | .049" | ||
| 1" | 25.400 | 16 GA | .060" | |
| 1 1/8" | 28.575 | .062" | ||
| 1 1/4" | 31.750 | .065" | ||
| 1 1/2" | 38.100 | 14 GA | .078" | |
| 1 5/8" | 41.275 | .083" | ||
| 1 3/4" | 44.450 | 12 GA | .109" | |
| 2" | 50.800 | 11 GA | .120" | |
| 2 1/4" | 57.150 | .125" | ||
| 2 1/2" | 63.500 | 9 GA | .140" | |
| 3" | 76.200 | .145" | ||
| 3 1/2" | 88.900 | 7 GA | .180" | |
| 4" | 101.600 | 1/4" | .250" | |
| Nominal Pipe Size (Inches) |
Actual O.D. (Inchess) |
Pipe Schedules = Wall Thickness | ||
| Sch 5S | Sch 10S | Sch 40S | ||
| 1/4" | 0.540 | -- | .065" | .088" |
| 3/8" | 0.675 | -- | .065" | .091" |
| 1/2" | 0.840 | .065" | .083" | .109" |
| 3/4" | 1.050 | .065" | .083" | .113" |
| 1" | 1.315 | .065" | .109" | .133" |
| 1 1/4" | 1.660 | .065" | .109" | .140" |
| 1 1/2" | 1.900 | .065" | .109" | .145" |
| 2" | 2.375 | .065" | .109" | .154" |
| 2 1/2" | 2.875 | .083" | .120" | .203" |
| 3" | 3.500 | .083" | .120" | .216" |
| 3 1/2" | 4.000 | .083" | .120" | .226" |
| 4" | 4.500 | .083" | .120" | .237" |