8 inch Sch 40 pipe dimensions & weight
8 inch Sch 40 pipe (DN 200) — dimensions, weight and capacity per ASME B36.10M.
| Nominal size | 8" (DN 200) |
| Schedule | Sch 40 |
| Outside diameter | 219.1 mm (8.626 in) |
| Wall thickness | 8.18 mm (0.322 in) |
| Inside diameter | 202.74 mm (7.982 in) |
| Weight — carbon steel | 42.55 kg/m · 28.59 lb/ft |
| Weight — SS 304 / SS 316 | 42.98 / 43.25 kg/m |
| 6 m length (CS) | 255.3 kg |
| 20 ft length (CS) | 259.4 kg |
| Flow area | 322.83 cm² |
| Water capacity | 32.283 L/m |
| Outer surface (painting) | 0.6883 m²/m |
| Approx. max. working pressure* | 93 bar (1,342 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 8": Sch 10S · Sch 80 · Sch 160 · XXS · all 8" schedules
Frequently asked questions
What is the ID of 8 inch Sch 40 pipe?
202.74 mm (7.982 in), with OD 219.1 mm and wall 8.18 mm.
What is the weight of 8 inch Sch 40 pipe?
42.55 kg/m (28.59 lb/ft) in carbon steel; 255.3 kg per 6 m length.
What pressure can 8 inch Sch 40 pipe take?
Roughly 93 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