One of the most important measurements for Carbon Steel Pipes Standard Weight Chart is the diameter, which is referred to as the "Nominal Pipe Size" (NPS) or "Nominal Bore" (NB) in the American system. This measurement is based on the inside diameter of the pipe and is expressed in inches. In the European system, the diameter is known as the "Nominal Diameter" (DN) and is expressed in millimeters.
Carbon Steel Pipes come in a range of sizes, and their diameters are measured in either millimeters or inches, depending on the standard being used. The American standard, ANSI/ASME/API, measures the diameter of carbon steel pipes in inches, while the European standard, DIN, measures them in millimeters.
| Nominal Pipe Size (NPS) | Outside Diameter (OD) | Schedule 10 | Schedule 20 | Schedule 30 | Schedule 40 | Schedule 60 | Schedule 80 | Schedule 100 | Schedule 120 | Schedule 140 | Schedule 160 | Schedule XXS | Wall Thickness (mm) | Weight (kg/meter) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/8" | 10.3 | 1.24 | 1.45 | 1.73 | 1.73 | 2.41 | 2.41 | - | - | - | - | - | 1.24 | 0.41 |
| 1/4" | 13.7 | 1.65 | 1.85 | 2.24 | 2.24 | 3.02 | 3.02 | - | - | - | - | - | 1.65 | 0.63 |
| 3/8" | 17.1 | 1.65 | 1.85 | 2.31 | 2.31 | 3.2 | 3.2 | - | - | - | - | - | 1.65 | 0.80 |
| 1/2" | 21.3 | 2.11 | 2.41 | 2.77 | 2.77 | 3.73 | 3.73 | 4.78 | 4.78 | 5.16 | 5.16 | 7.47 | 2.11 | 1.02 |
| 3/4" | 26.7 | 2.11 | 2.41 | 2.87 | 2.87 | 3.91 | 3.91 | 5.56 | 5.56 | 6.35 | 6.35 | 8.38 | 2.11 | 1.30 |
| 1" | 33.4 | 2.77 | 3.38 | 3.38 | 3.38 | 4.55 | 4.55 | 6.35 | 6.35 | 7.14 | 7.14 | 9.09 | 2.77 | 2.09 |
| 1 1/4" | 42.2 | 2.77 | 3.56 | 3.56 | 3.56 | 4.85 | 4.85 | 6.35 | 6.35 | 7.14 | 7.14 | 9.70 | 2.77 | 2.73 |
| 1 1/2" | 48.3 | 2.77 | 3.68 | 3.68 | 3.68 | 5 |
| Nominal Pipe Size (NPS) | Outside Diameter (OD) in inches | Wall Thickness (WT) in inches | Weight per Foot (lb/ft) |
|---|---|---|---|
| 1/8 | 0.405 | 0.049 | 0.19 |
| 1/4 | 0.54 | 0.065 | 0.33 |
| 3/8 | 0.675 | 0.065 | 0.42 |
| 1/2 | 0.84 | 0.083 | 0.67 |
| 3/4 | 1.05 | 0.083 | 0.87 |
| 1 | 1.315 | 0.109 | 1.41 |
| 1 1/4 | 1.66 | 0.109 | 1.83 |
| 1 1/2 | 1.9 | 0.109 | 2.16 |
| 2 | 2.375 | 0.109 | 2.89 |
| 2 1/2 | 2.875 | 0.12 | 4.06 |
| 3 | 3.5 | 0.12 | 5.22 |
| 3 1/2 | 4.0 | 0.12 | 6.04 |
| 4 | 4.5 | 0.12 | 6.88 |
| 5 | 5.563 | 0.134 | 10.79 |
| 6 | 6.625 | 0.134 | 12.91 |
| 8 | 8.625 | 0.148 | 21.44 |
| 10 | 10.75 | 0.165 | 32.58 |
| 12 | 12.75 | 0.18 | 42.55 |
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