Hot rolled welded tubes
| Steel | Fabrication standard |
| S235JRH | UNI EN 10210-1 |
| S275JRH | |
| S355JRH | |
| E275+U | UNI EN 10296-1 |
| E355+U | |
|
 |
| Steel | Fabrication standard |
| S235JRH | UNI EN 10210-1 |
| S275JRH | |
| S355JRH | |
| E275+U | UNI EN 10296-1 |
| E355+U | |
|
|
|