8 inch (DN 200) pipe dimensions & weight
8 inch (DN 200) steel pipe has an outside diameter of 219.1 mm (8.626 in) in every schedule. Below: wall thickness, inside diameter, weight per metre and water capacity for each ASME B36.10M / B36.19M schedule.
| Schedule | Wall (mm) | Wall (in) | ID (mm) | CS kg/m | CS lb/ft | SS 304 kg/m | Water L/m |
|---|---|---|---|---|---|---|---|
| Sch 5S | 2.77 | 0.109 | 213.56 | 14.78 | 9.93 | 14.93 | 35.82 |
| Sch 10S | 3.76 | 0.148 | 211.58 | 19.97 | 13.42 | 20.17 | 35.16 |
| Sch 20 | 6.35 | 0.250 | 206.40 | 33.31 | 22.38 | 33.65 | 33.46 |
| Sch 30 | 7.04 | 0.277 | 205.02 | 36.81 | 24.74 | 37.19 | 33.01 |
| STD | 8.18 | 0.322 | 202.74 | 42.55 | 28.59 | 42.98 | 32.28 |
| Sch 40 | 8.18 | 0.322 | 202.74 | 42.55 | 28.59 | 42.98 | 32.28 |
| Sch 60 | 10.31 | 0.406 | 198.48 | 53.08 | 35.67 | 53.62 | 30.94 |
| XS | 12.70 | 0.500 | 193.70 | 64.64 | 43.44 | 65.30 | 29.47 |
| Sch 80 | 12.70 | 0.500 | 193.70 | 64.64 | 43.44 | 65.30 | 29.47 |
| Sch 100 | 15.09 | 0.594 | 188.92 | 75.92 | 51.02 | 76.69 | 28.03 |
| Sch 120 | 18.26 | 0.719 | 182.58 | 90.44 | 60.78 | 91.36 | 26.18 |
| Sch 140 | 20.62 | 0.812 | 177.86 | 100.92 | 67.82 | 101.95 | 24.85 |
| Sch 160 | 23.01 | 0.906 | 173.08 | 111.27 | 74.77 | 112.40 | 23.53 |
| XXS | 22.23 | 0.875 | 174.64 | 107.92 | 72.52 | 109.02 | 23.95 |
CS = carbon steel (7.85 g/cm³). SS 304 at 7.93 g/cm³; for 316 multiply CS weight by 1.017. Water capacity = internal volume per metre.
Matching 8" flanges and fittings
| Class 150 flange | OD 345 mm · thk 27.0 mm · PCD 298.5 mm · 8 × 3/4" bolts |
| Class 300 flange | OD 380 mm · thk 39.7 mm · PCD 330.2 mm · 12 × 7/8" bolts |
| B16.9 fittings | 90° LR 305 mm · 45° LR 127 mm · 90° SR 203 mm · tee 178 mm · reducer 152 mm · cap 102 mm |
Full tables: Class 150 · Class 300 · B16.9 fittings.
Frequently asked questions
What is the OD of 8 inch pipe?
8 inch (DN 200) pipe has an outside diameter of 219.1 mm (8.626 in), regardless of schedule.
What is the wall thickness of 8 inch Schedule 40 pipe?
8.18 mm (0.322 in), giving an inside diameter of 202.74 mm.
How much does 8 inch Schedule 40 pipe weigh?
About 42.55 kg/m (28.59 lb/ft) in carbon steel, or 255.3 kg for a 6 m length.
What is the wall thickness of 8 inch Schedule 80 pipe?
12.70 mm, with an inside diameter of 193.70 mm and weight of 64.64 kg/m.
Last updated 2026-11-02