1-1/2 inch XXS pipe dimensions & weight
1-1/2 inch XXS pipe (DN 40) — dimensions, weight and capacity per ASME B36.19M.
| Nominal size | 1-1/2" (DN 40) |
| Schedule | XXS |
| Outside diameter | 48.3 mm (1.902 in) |
| Wall thickness | 10.15 mm (0.400 in) |
| Inside diameter | 28.00 mm (1.102 in) |
| Weight — carbon steel | 9.55 kg/m · 6.42 lb/ft |
| Weight — SS 304 / SS 316 | 9.65 / 9.71 kg/m |
| 6 m length (CS) | 57.3 kg |
| 20 ft length (CS) | 58.2 kg |
| Flow area | 6.16 cm² |
| Water capacity | 0.616 L/m |
| Outer surface (painting) | 0.1517 m²/m |
| Approx. max. working pressure* | 496 bar (7,192 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 10S · Sch 40 · Sch 80 · Sch 160 · all 1-1/2" schedules
Frequently asked questions
What is the ID of 1-1/2 inch XXS pipe?
28.00 mm (1.102 in), with OD 48.3 mm and wall 10.15 mm.
What is the weight of 1-1/2 inch XXS pipe?
9.55 kg/m (6.42 lb/ft) in carbon steel; 57.3 kg per 6 m length.
What pressure can 1-1/2 inch XXS pipe take?
Roughly 496 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