16 inch Sch 80 pipe dimensions & weight
16 inch Sch 80 pipe (DN 400) — dimensions, weight and capacity per ASME B36.10M.
| Nominal size | 16" (DN 400) |
| Schedule | Sch 80 |
| Outside diameter | 406.4 mm (16.000 in) |
| Wall thickness | 21.44 mm (0.844 in) |
| Inside diameter | 363.52 mm (14.312 in) |
| Weight — carbon steel | 203.53 kg/m · 136.77 lb/ft |
| Weight — SS 304 / SS 316 | 205.60 / 206.90 kg/m |
| 6 m length (CS) | 1221.2 kg |
| 20 ft length (CS) | 1240.7 kg |
| Flow area | 1037.88 cm² |
| Water capacity | 103.788 L/m |
| Outer surface (painting) | 1.2767 m²/m |
| Approx. max. working pressure* | 132 bar (1,917 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 16": Sch 10S · Sch 40 · Sch 160 · all 16" schedules
Frequently asked questions
What is the ID of 16 inch Sch 80 pipe?
363.52 mm (14.312 in), with OD 406.4 mm and wall 21.44 mm.
What is the weight of 16 inch Sch 80 pipe?
203.53 kg/m (136.77 lb/ft) in carbon steel; 1221.2 kg per 6 m length.
What pressure can 16 inch Sch 80 pipe take?
Roughly 132 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