8 inch pipe (DN 200): outside diameter, wall thickness and weight by schedule
A 8 inch pipe (DN 200) has a 219.1 mm (8.625 in) outside diameter in every schedule: what changes is the wall, and with it the inside diameter and the weight. Designations that give the same wall share a row.
| Schedule | Wall | ID | Weight |
|---|---|---|---|
| Sch 5 / 5S | 2.77 mm (0.109 in) | 213.56 mm (8.407 in) | 14.78 kg/m (9.92 lb/ft) |
| Sch 10 / 10S | 3.76 mm (0.148 in) | 211.58 mm (8.329 in) | 19.97 kg/m (13.41 lb/ft) |
| Sch 20 | 6.35 mm (0.250 in) | 206.40 mm (8.125 in) | 33.32 kg/m (22.38 lb/ft) |
| Sch 30 | 7.04 mm (0.277 in) | 205.02 mm (8.071 in) | 36.82 kg/m (24.72 lb/ft) |
| Sch 40 / STD / 40S | 8.18 mm (0.322 in) | 202.74 mm (7.981 in) | 42.55 kg/m (28.58 lb/ft) |
| Sch 60 | 10.31 mm (0.406 in) | 198.48 mm (7.813 in) | 53.09 kg/m (35.67 lb/ft) |
| Sch 80 / XS / 80S | 12.70 mm (0.500 in) | 193.70 mm (7.625 in) | 64.64 kg/m (43.43 lb/ft) |
| Sch 100 | 15.09 mm (0.594 in) | 188.92 mm (7.437 in) | 75.92 kg/m (51.00 lb/ft) |
| Sch 120 | 18.26 mm (0.719 in) | 182.58 mm (7.187 in) | 90.44 kg/m (60.77 lb/ft) |
| Sch 140 | 20.62 mm (0.812 in) | 177.86 mm (7.001 in) | 100.93 kg/m (67.82 lb/ft) |
| XXS | 22.23 mm (0.875 in) | 174.64 mm (6.875 in) | 107.93 kg/m (72.49 lb/ft) |
| Sch 160 | 23.01 mm (0.906 in) | 173.08 mm (6.813 in) | 111.27 kg/m (74.76 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.
Lay out on 8 inch pipe
The outside diameter and the wall of the chosen schedule go to the calculator, which opens with them filled in and draws without an account.
Questions
- What is the outside diameter of 8 inch pipe?
- 219.1 mm (8.625 in), in any schedule: it is the DN 200 pipe of ASME B36.10M. The wall changes with the schedule, and the inside diameter with it.
- What is the wall thickness of 8 inch schedule 40 pipe?
- 8.18 mm (0.322 in), with an inside diameter of 202.74 mm (7.981 in); carbon steel pipe weighs 42.55 kg/m (28.58 lb/ft).
- What is the difference between schedule 40 and 80 in 8 inch pipe?
- The wall: 8.18 mm (0.322 in) in schedule 40 and 12.70 mm (0.500 in) in 80. The outside diameter is the same, so schedule 80 has the smaller bore -- 193.70 mm (7.625 in) against 202.74 mm (7.981 in) -- and weighs 64.64 kg/m (43.43 lb/ft) against 42.55 kg/m (28.58 lb/ft).
Printable template
8 inch pipe saddle and mitre templates at full size (PDF)
Flanges for 8 inch pipe
By schedule
- 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 120
- Schedule 140
- Schedule 160
- XXS