6 inch Sch 80 pipe dimensions & weight
6 inch Sch 80 pipe (DN 150) — dimensions, weight and capacity per ASME B36.10M.
| Nominal size | 6" (DN 150) |
| Schedule | Sch 80 |
| Outside diameter | 168.3 mm (6.626 in) |
| Wall thickness | 10.97 mm (0.432 in) |
| Inside diameter | 146.36 mm (5.762 in) |
| Weight — carbon steel | 42.56 kg/m · 28.60 lb/ft |
| Weight — SS 304 / SS 316 | 42.99 / 43.26 kg/m |
| 6 m length (CS) | 255.4 kg |
| 20 ft length (CS) | 259.4 kg |
| Flow area | 168.24 cm² |
| Water capacity | 16.824 L/m |
| Outer surface (painting) | 0.5287 m²/m |
| Approx. max. working pressure* | 165 bar (2,390 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 6": Sch 10S · Sch 40 · Sch 160 · XXS · all 6" schedules
Frequently asked questions
What is the ID of 6 inch Sch 80 pipe?
146.36 mm (5.762 in), with OD 168.3 mm and wall 10.97 mm.
What is the weight of 6 inch Sch 80 pipe?
42.56 kg/m (28.60 lb/ft) in carbon steel; 255.4 kg per 6 m length.
What pressure can 6 inch Sch 80 pipe take?
Roughly 165 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