Schedule 80 steel pipe: outside diameter, wall thickness and weight chart
Schedule 80 in ASME B36.10M gives one wall for each size, from 1/8 inch to 24 inch. The outside diameter is that of the size, the same in every schedule; the inside diameter is the outside diameter less two walls.
| Size | OD | Wall | ID | Weight |
|---|---|---|---|---|
| 1/8 inch (DN 6) | 10.3 mm (0.405 in) | 2.41 mm (0.095 in) | 5.48 mm (0.215 in) | 0.47 kg/m (0.31 lb/ft) |
| 1/4 inch (DN 8) | 13.7 mm (0.540 in) | 3.02 mm (0.119 in) | 7.66 mm (0.302 in) | 0.80 kg/m (0.54 lb/ft) |
| 3/8 inch (DN 10) | 17.1 mm (0.675 in) | 3.20 mm (0.126 in) | 10.70 mm (0.423 in) | 1.10 kg/m (0.74 lb/ft) |
| 1/2 inch (DN 15) | 21.3 mm (0.840 in) | 3.73 mm (0.147 in) | 13.84 mm (0.546 in) | 1.62 kg/m (1.09 lb/ft) |
| 3/4 inch (DN 20) | 26.7 mm (1.050 in) | 3.91 mm (0.154 in) | 18.88 mm (0.742 in) | 2.20 kg/m (1.48 lb/ft) |
| 1 inch (DN 25) | 33.4 mm (1.315 in) | 4.55 mm (0.179 in) | 24.30 mm (0.957 in) | 3.24 kg/m (2.17 lb/ft) |
| 1-1/4 inch (DN 32) | 42.2 mm (1.660 in) | 4.85 mm (0.191 in) | 32.50 mm (1.278 in) | 4.47 kg/m (3.00 lb/ft) |
| 1-1/2 inch (DN 40) | 48.3 mm (1.900 in) | 5.08 mm (0.200 in) | 38.14 mm (1.500 in) | 5.41 kg/m (3.63 lb/ft) |
| 2 inch (DN 50) | 60.3 mm (2.375 in) | 5.54 mm (0.218 in) | 49.22 mm (1.939 in) | 7.48 kg/m (5.03 lb/ft) |
| 2-1/2 inch (DN 65) | 73.0 mm (2.875 in) | 7.01 mm (0.276 in) | 58.98 mm (2.323 in) | 11.41 kg/m (7.67 lb/ft) |
| 3 inch (DN 80) | 88.9 mm (3.500 in) | 7.62 mm (0.300 in) | 73.66 mm (2.900 in) | 15.27 kg/m (10.26 lb/ft) |
| 3-1/2 inch (DN 90) | 101.6 mm (4.000 in) | 8.08 mm (0.318 in) | 85.44 mm (3.364 in) | 18.64 kg/m (12.52 lb/ft) |
| 4 inch (DN 100) | 114.3 mm (4.500 in) | 8.56 mm (0.337 in) | 97.18 mm (3.826 in) | 22.32 kg/m (15.00 lb/ft) |
| 5 inch (DN 125) | 141.3 mm (5.563 in) | 9.53 mm (0.375 in) | 122.24 mm (4.813 in) | 30.97 kg/m (20.80 lb/ft) |
| 6 inch (DN 150) | 168.3 mm (6.625 in) | 10.97 mm (0.432 in) | 146.36 mm (5.761 in) | 42.56 kg/m (28.60 lb/ft) |
| 8 inch (DN 200) | 219.1 mm (8.625 in) | 12.70 mm (0.500 in) | 193.70 mm (7.625 in) | 64.64 kg/m (43.43 lb/ft) |
| 10 inch (DN 250) | 273.0 mm (10.750 in) | 15.09 mm (0.594 in) | 242.82 mm (9.562 in) | 95.98 kg/m (64.49 lb/ft) |
| 12 inch (DN 300) | 323.8 mm (12.750 in) | 17.48 mm (0.688 in) | 288.84 mm (11.374 in) | 132.05 kg/m (88.71 lb/ft) |
| 14 inch (DN 350) | 355.6 mm (14.000 in) | 19.05 mm (0.750 in) | 317.50 mm (12.500 in) | 158.11 kg/m (106.23 lb/ft) |
| 16 inch (DN 400) | 406.4 mm (16.000 in) | 21.44 mm (0.844 in) | 363.52 mm (14.312 in) | 203.54 kg/m (136.74 lb/ft) |
| 18 inch (DN 450) | 457 mm (18.000 in) | 23.83 mm (0.938 in) | 409.34 mm (16.124 in) | 254.57 kg/m (171.08 lb/ft) |
| 20 inch (DN 500) | 508 mm (20.000 in) | 26.19 mm (1.031 in) | 455.62 mm (17.938 in) | 311.19 kg/m (209.06 lb/ft) |
| 22 inch (DN 550) | 559 mm (22.000 in) | 28.58 mm (1.125 in) | 501.84 mm (19.750 in) | 373.85 kg/m (251.05 lb/ft) |
| 24 inch (DN 600) | 610 mm (24.000 in) | 30.96 mm (1.219 in) | 548.08 mm (21.562 in) | 442.11 kg/m (296.86 lb/ft) |
Plain-end weight of carbon steel pipe, by the standard's own formula: 10.69 × (D − t) × t in lb/ft, with D and t in inches (0.0246615 × (D − t) × t in kg/m, in mm). Austenitic stainless weighs about 2% more.
Questions
- What is schedule 80 pipe?
- It is the schedule 80 wall series in ASME B36.10M: one wall for each size, from 1/8 inch to 24 inch. The outside diameter is that of the size, and the inside diameter is the outside diameter less two walls.
- How do you calculate the weight of schedule 80 pipe?
- With the standard's own formula: weight in lb/ft = 10.69 × (D − t) × t, with the outside diameter D and the wall t in inches; in kg/m, 0.0246615 × (D − t) × t in millimetres. That is carbon steel; austenitic stainless weighs about 2% more.
- Does schedule 80 PVC pipe have the same dimensions?
- The outside diameter, yes, in every size; and nearly always the wall -- where they differ, it is by a thousandth of an inch (ASTM D1785). But the PVC wall is a minimum and the steel wall is nominal, and the weight in the chart is for steel.
Other schedules
- Schedule 5
- Schedule 5S
- Schedule 10
- Schedule 10S
- Schedule 20
- Schedule 30
- Schedule 40
- STD
- Schedule 40S
- Schedule 60
- XS
- Schedule 80S
- Schedule 100
- Schedule 120
- Schedule 140
- Schedule 160
- XXS
By size
- 1/8 inch
- 1/4 inch
- 3/8 inch
- 1/2 inch
- 3/4 inch
- 1 inch
- 1-1/4 inch
- 1-1/2 inch
- 2 inch
- 2-1/2 inch
- 3 inch
- 3-1/2 inch
- 4 inch
- 5 inch
- 6 inch
- 8 inch
- 10 inch
- 12 inch
- 14 inch
- 16 inch
- 18 inch
- 20 inch
- 22 inch
- 24 inch
- 26 inch
- 28 inch
- 30 inch
- 32 inch
- 34 inch
- 36 inch