NPS 36 Schedule 40 Pipe
36.000 in (914.4 mm) outside diameter on a 0.750 in (19.0 mm) wall, giving a 34.500 in (876.3 mm) bore and 282.36 lb/ft (420.19 kg/m) empty. ASME B36.10M.
- Nominal size
- NPS 36 (DN 900)
- Schedule
- Schedule 40
- Outside diameter
- 36.000 in (914.4 mm)
- Wall thickness
- 0.750 in (19.0 mm)
- Inside diameter
- 34.500 in (876.3 mm)
- Weight, empty
- 282.36 lb/ft (420.19 kg/m)
- Weight, water filled
- 687.63 lb/ft (1023.30 kg/m)
- Flow area
- 934.820 in² (603109 mm²)
No other designation in NPS 36 shares this wall thickness, so Schedule 40 is unambiguous in this size.
Every schedule in NPS 36
Dimensions are given in inches, with the millimetre equivalent beneath in grey.
| Schedule | Wall thickness | Inside diameter | Weight, empty | Water (US gal/ft) |
|---|---|---|---|---|
| Sch 10 | 0.3127.92 mm | 35.376898.55 mm | 118.92176.97 kg/m | 51.060 |
| Sch 20 | 0.50012.70 mm | 35.000889.00 mm | 189.57282.12 kg/m | 49.980 |
| Sch 30 | 0.62515.88 mm | 34.750882.65 mm | 236.13351.40 kg/m | 49.268 |
| Sch 40 this page | 0.75019.05 mm | 34.500876.30 mm | 282.36420.19 kg/m | 48.562 |
| STD | 0.3759.52 mm | 35.250895.35 mm | 142.68212.33 kg/m | 50.696 |
| XS | 0.50012.70 mm | 35.000889.00 mm | 189.57282.12 kg/m | 49.980 |
Weight is plain-end carbon steel, w = 10.6802 × t × (OD − t) lb/ft.
Common questions
What is the inside diameter of NPS 36 schedule 40 pipe?
34.500 in (876.3 mm). The outside diameter is fixed at 36.000 in (914.4 mm) by ASME B36.10M, and the 0.750 in (19.0 mm) wall takes 1.500 in off it — 0.750 in from each side — leaving that bore.
How much does NPS 36 schedule 40 pipe weigh?
282.36 lb/ft (420.19 kg/m) empty, as plain-end carbon steel. Full of water it comes to 687.63 lb/ft (1023.30 kg/m), because the bore holds 48.562 US gallons per foot. One short ton of this pipe is about 7 ft.
Does NPS 36 schedule 40 pipe use special flanges or fittings?
No. Flanges and buttweld fittings are dimensioned from NPS, so NPS 36 hardware fits this pipe in any schedule. The one thing that does follow the schedule is the bore of a weld neck flange or a fitting end prep, which has to be 34.500 in (876.3 mm) to match.