4 inch Sch 10S pipe dimensions & weight
4 inch Sch 10S pipe (DN 100) — dimensions, weight and capacity per ASME B36.19M.
| Nominal size | 4" (DN 100) |
| Schedule | Sch 10S |
| Outside diameter | 114.3 mm (4.500 in) |
| Wall thickness | 3.05 mm (0.120 in) |
| Inside diameter | 108.20 mm (4.260 in) |
| Weight — carbon steel | 8.37 kg/m · 5.62 lb/ft |
| Weight — SS 304 / SS 316 | 8.46 / 8.51 kg/m |
| 6 m length (CS) | 50.2 kg |
| 20 ft length (CS) | 51.0 kg |
| Flow area | 91.95 cm² |
| Water capacity | 9.195 L/m |
| Outer surface (painting) | 0.3591 m²/m |
| Approx. max. working pressure* | 55 bar (794 psi) — A312 TP316L |
*Approximate ASME B31.3 straight-pipe rating at ≤ 38 °C for seamless A312 TP316L (S = 115.0 MPa, E = 1, 12.5% mill tolerance, no corrosion allowance). Use the wall thickness calculator for your own design conditions.
Other schedules for 4": Sch 40 · Sch 80 · Sch 160 · XXS · all 4" schedules
Frequently asked questions
What is the ID of 4 inch Sch 10S pipe?
108.20 mm (4.260 in), with OD 114.3 mm and wall 3.05 mm.
What is the weight of 4 inch Sch 10S pipe?
8.37 kg/m (5.62 lb/ft) in carbon steel; 50.2 kg per 6 m length.
What pressure can 4 inch Sch 10S pipe take?
Roughly 55 bar at ambient for seamless A312 TP316L under ASME B31.3 with no corrosion allowance; actual rating depends on material, temperature and code.
Last updated 2026-11-02