1-1/2 inch Sch 10S pipe dimensions & weight
1-1/2 inch Sch 10S pipe (DN 40) — dimensions, weight and capacity per ASME B36.19M.
| Nominal size | 1-1/2" (DN 40) |
| Schedule | Sch 10S |
| Outside diameter | 48.3 mm (1.902 in) |
| Wall thickness | 2.77 mm (0.109 in) |
| Inside diameter | 42.76 mm (1.683 in) |
| Weight — carbon steel | 3.11 kg/m · 2.09 lb/ft |
| Weight — SS 304 / SS 316 | 3.14 / 3.16 kg/m |
| 6 m length (CS) | 18.7 kg |
| 20 ft length (CS) | 19.0 kg |
| Flow area | 14.36 cm² |
| Water capacity | 1.436 L/m |
| Outer surface (painting) | 0.1517 m²/m |
| Approx. max. working pressure* | 120 bar (1,744 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 1-1/2": Sch 40 · Sch 80 · Sch 160 · XXS · all 1-1/2" schedules
Frequently asked questions
What is the ID of 1-1/2 inch Sch 10S pipe?
42.76 mm (1.683 in), with OD 48.3 mm and wall 2.77 mm.
What is the weight of 1-1/2 inch Sch 10S pipe?
3.11 kg/m (2.09 lb/ft) in carbon steel; 18.7 kg per 6 m length.
What pressure can 1-1/2 inch Sch 10S pipe take?
Roughly 120 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