3/4 inch Sch 10S pipe dimensions & weight
3/4 inch Sch 10S pipe (DN 20) — dimensions, weight and capacity per ASME B36.19M.
| Nominal size | 3/4" (DN 20) |
| Schedule | Sch 10S |
| Outside diameter | 26.7 mm (1.051 in) |
| Wall thickness | 2.11 mm (0.083 in) |
| Inside diameter | 22.48 mm (0.885 in) |
| Weight — carbon steel | 1.28 kg/m · 0.86 lb/ft |
| Weight — SS 304 / SS 316 | 1.29 / 1.30 kg/m |
| 6 m length (CS) | 7.7 kg |
| 20 ft length (CS) | 7.8 kg |
| Flow area | 3.97 cm² |
| Water capacity | 0.397 L/m |
| Outer surface (painting) | 0.0839 m²/m |
| Approx. max. working pressure* | 168 bar (2,442 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 3/4": Sch 40 · Sch 80 · Sch 160 · XXS · all 3/4" schedules
Frequently asked questions
What is the ID of 3/4 inch Sch 10S pipe?
22.48 mm (0.885 in), with OD 26.7 mm and wall 2.11 mm.
What is the weight of 3/4 inch Sch 10S pipe?
1.28 kg/m (0.86 lb/ft) in carbon steel; 7.7 kg per 6 m length.
What pressure can 3/4 inch Sch 10S pipe take?
Roughly 168 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