Structural tubes are produced according to DIN 2391-1 in grade St35.0 and in the following thickness range:
| Outside diameter of a pipe | Thickness of the wall (mm) |
| mm | |
| 559 | 8,0 – 11,0 |
| 610 | 8,0 – 12,5 |
| 660 | 8,0 – 12,5 |
| 711 | 8,0 – 14,2 |
| 813 | 8,0 – 16,0 |
| 914 | |
| 1016 | |
| 1220 | |
| 1420 | 8,8 – 17,5 |
| 1620 | 10,0 – 17,5 |
| 1720 | |
| 1820 | |
| 2020 |