| A. Outside Diameter of pipe: | ± 1.0% |
| B. Thickness: upto 406.4 mm OD |
+ 15% - 12.5 |
| C. Weight: Single Tube |
- 8% |
| D. Length: Unless Otherwise specified 4 to 7 mtr. |
+ 10% |
| Nominal Size | Outer Diameter | Wall Thickness | Normal Weight Black Tubes | |
| mm | mm | mm | kg/Mtr | Mtr/Tonne |
| 100 | 114.3 | 5.0 | 13.48 | 74 |
| 125 | 141.3 | 5.0 | 16.80 | 59 |
| 150 | 168.3 | 5.0 | 20.13 | 49 |
| 175 | 193.7 | 5.4 | 25.10 | 40 |
| 200 | 219.1 | 5.4 | 28.46 | 35 |
| 225 | 244.5 | 6.0 | 35.29 | 28 |
| 250 | 273.1 | 7.1 | 46.57 | 21 |
| 300 | 323.9 | 7.1 | 55.47 | 18 |
| 400 | 406.4 | 8.0 | 78.60 | - |