Schedule 120 steel pipe: outside diameter, wall thickness and weight chart
Schedule 120 in ASME B36.10M gives one wall for each size, from 4 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 |
|---|---|---|---|---|
| 4 inch (DN 100) | 114.3 mm (4.500 in) | 11.13 mm (0.438 in) | 92.04 mm (3.624 in) | 28.32 kg/m (19.02 lb/ft) |
| 5 inch (DN 125) | 141.3 mm (5.563 in) | 12.70 mm (0.500 in) | 115.90 mm (4.563 in) | 40.28 kg/m (27.06 lb/ft) |
| 6 inch (DN 150) | 168.3 mm (6.625 in) | 14.27 mm (0.562 in) | 139.76 mm (5.501 in) | 54.21 kg/m (36.43 lb/ft) |
| 8 inch (DN 200) | 219.1 mm (8.625 in) | 18.26 mm (0.719 in) | 182.58 mm (7.187 in) | 90.44 kg/m (60.77 lb/ft) |
| 10 inch (DN 250) | 273.0 mm (10.750 in) | 21.44 mm (0.844 in) | 230.12 mm (9.062 in) | 133.01 kg/m (89.38 lb/ft) |
| 12 inch (DN 300) | 323.8 mm (12.750 in) | 25.40 mm (1.000 in) | 273.00 mm (10.750 in) | 186.92 kg/m (125.61 lb/ft) |
| 14 inch (DN 350) | 355.6 mm (14.000 in) | 27.79 mm (1.094 in) | 300.02 mm (11.812 in) | 224.66 kg/m (150.93 lb/ft) |
| 16 inch (DN 400) | 406.4 mm (16.000 in) | 30.96 mm (1.219 in) | 344.48 mm (13.562 in) | 286.66 kg/m (192.61 lb/ft) |
| 18 inch (DN 450) | 457 mm (18.000 in) | 34.93 mm (1.375 in) | 387.14 mm (15.250 in) | 363.58 kg/m (244.37 lb/ft) |
| 20 inch (DN 500) | 508 mm (20.000 in) | 38.10 mm (1.500 in) | 431.80 mm (17.000 in) | 441.52 kg/m (296.65 lb/ft) |
| 22 inch (DN 550) | 559 mm (22.000 in) | 41.28 mm (1.625 in) | 476.44 mm (18.750 in) | 527.05 kg/m (353.94 lb/ft) |
| 24 inch (DN 600) | 610 mm (24.000 in) | 46.02 mm (1.812 in) | 517.96 mm (20.376 in) | 640.07 kg/m (429.79 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 120 pipe?
- It is the schedule 120 wall series in ASME B36.10M: one wall for each size, from 4 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 120 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.
Other schedules
- Schedule 5
- Schedule 5S
- Schedule 10
- Schedule 10S
- Schedule 20
- Schedule 30
- Schedule 40
- STD
- Schedule 40S
- Schedule 60
- Schedule 80
- XS
- Schedule 80S
- Schedule 100
- Schedule 140
- Schedule 160
- XXS
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