14 inch Sch 40 pipe dimensions & weight
14 inch Sch 40 pipe (DN 350) — dimensions, weight and capacity per ASME B36.10M.
| Nominal size | 14" (DN 350) |
| Schedule | Sch 40 |
| Outside diameter | 355.6 mm (14.000 in) |
| Wall thickness | 11.13 mm (0.438 in) |
| Inside diameter | 333.34 mm (13.124 in) |
| Weight — carbon steel | 94.55 kg/m · 63.54 lb/ft |
| Weight — SS 304 / SS 316 | 95.51 / 96.12 kg/m |
| 6 m length (CS) | 567.3 kg |
| 20 ft length (CS) | 576.4 kg |
| Flow area | 872.70 cm² |
| Water capacity | 87.270 L/m |
| Outer surface (painting) | 1.1171 m²/m |
| Approx. max. working pressure* | 77 bar (1,120 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 14": Sch 10S · Sch 80 · Sch 160 · all 14" schedules
Frequently asked questions
What is the ID of 14 inch Sch 40 pipe?
333.34 mm (13.124 in), with OD 355.6 mm and wall 11.13 mm.
What is the weight of 14 inch Sch 40 pipe?
94.55 kg/m (63.54 lb/ft) in carbon steel; 567.3 kg per 6 m length.
What pressure can 14 inch Sch 40 pipe take?
Roughly 77 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