4 inch pipe (DN 100): outside diameter, wall thickness and weight by schedule
A 4 inch pipe (DN 100) has a 114.3 mm (4.500 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 | 2.11 mm (0.083 in) | 110.08 mm (4.334 in) | 5.84 kg/m (3.92 lb/ft) |
| Sch 10 / 10S | 3.05 mm (0.120 in) | 108.20 mm (4.260 in) | 8.37 kg/m (5.62 lb/ft) |
| Sch 30 | 4.78 mm (0.188 in) | 104.74 mm (4.124 in) | 12.91 kg/m (8.67 lb/ft) |
| Sch 40 / STD / 40S | 6.02 mm (0.237 in) | 102.26 mm (4.026 in) | 16.08 kg/m (10.80 lb/ft) |
| Sch 80 / XS / 80S | 8.56 mm (0.337 in) | 97.18 mm (3.826 in) | 22.32 kg/m (15.00 lb/ft) |
| Sch 120 | 11.13 mm (0.438 in) | 92.04 mm (3.624 in) | 28.32 kg/m (19.02 lb/ft) |
| Sch 160 | 13.49 mm (0.531 in) | 87.32 mm (3.438 in) | 33.54 kg/m (22.53 lb/ft) |
| XXS | 17.12 mm (0.674 in) | 80.06 mm (3.152 in) | 41.03 kg/m (27.57 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 4 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 4 inch pipe?
- 114.3 mm (4.500 in), in any schedule: it is the DN 100 pipe of ASME B36.10M. The wall changes with the schedule, and the inside diameter with it.
- What is the wall thickness of 4 inch schedule 40 pipe?
- 6.02 mm (0.237 in), with an inside diameter of 102.26 mm (4.026 in); carbon steel pipe weighs 16.08 kg/m (10.80 lb/ft).
- What is the difference between schedule 40 and 80 in 4 inch pipe?
- The wall: 6.02 mm (0.237 in) in schedule 40 and 8.56 mm (0.337 in) in 80. The outside diameter is the same, so schedule 80 has the smaller bore -- 97.18 mm (3.826 in) against 102.26 mm (4.026 in) -- and weighs 22.32 kg/m (15.00 lb/ft) against 16.08 kg/m (10.80 lb/ft).
Printable template
4 inch pipe saddle and mitre templates at full size (PDF)
Flanges for 4 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