NF A 49-230
NF A 49-230 (Steel tubes. Plain end seamless tubes for pressure vessels and piping systems used at low temperatures. Dimensions. Technical delivery conditions)· AFNOR NF (France) · 5 materials
| Designation | Material group | |
|---|---|---|
| TU 10 N 14 | Structural and constructional steels | chevron_right |
| TU 10 N 9 | Structural and constructional steels | chevron_right |
| TU 17 N 2 | Structural and constructional steels | chevron_right |
| TU 42 BT | Structural and constructional steels | chevron_right |
| TU Z 6 N 9 | Structural and constructional steels | chevron_right |