5 inch Sch 40 pipe dimensions & weight
5 inch Sch 40 pipe (DN 125) — dimensions, weight and capacity per ASME B36.10M.
| Nominal size | 5" (DN 125) |
| Schedule | Sch 40 |
| Outside diameter | 141.3 mm (5.563 in) |
| Wall thickness | 6.55 mm (0.258 in) |
| Inside diameter | 128.20 mm (5.047 in) |
| Weight — carbon steel | 21.77 kg/m · 14.63 lb/ft |
| Weight — SS 304 / SS 316 | 21.99 / 22.13 kg/m |
| 6 m length (CS) | 130.6 kg |
| 20 ft length (CS) | 132.7 kg |
| Flow area | 129.08 cm² |
| Water capacity | 12.908 L/m |
| Outer surface (painting) | 0.4439 m²/m |
| Approx. max. working pressure* | 116 bar (1,677 psi) — A106 Gr B |
*Approximate ASME B31.3 straight-pipe rating at ≤ 38 °C for seamless A106 Gr B (S = 137.9 MPa, E = 1, 12.5% mill tolerance, no corrosion allowance). Use the wall thickness calculator for your own design conditions.
Other schedules for 5": Sch 10S · Sch 80 · Sch 160 · XXS · all 5" schedules
Frequently asked questions
What is the ID of 5 inch Sch 40 pipe?
128.20 mm (5.047 in), with OD 141.3 mm and wall 6.55 mm.
What is the weight of 5 inch Sch 40 pipe?
21.77 kg/m (14.63 lb/ft) in carbon steel; 130.6 kg per 6 m length.
What pressure can 5 inch Sch 40 pipe take?
Roughly 116 bar at ambient for seamless A106 Gr B under ASME B31.3 with no corrosion allowance; actual rating depends on material, temperature and code.
Last updated 2026-11-02