NF A 49-646
NF A 49-646 (Steel tubes. Round, square and rectangular precision steel tubes longitudinally induction welded from hot or cold-rolled flat products, coated or not coated. Dimensions. Technical delivery conditions)· AFNOR NF (France) · 10 materials
| Designation | Material group | |
|---|---|---|
| ED 03 | Structural and constructional steels | chevron_right |
| ED 420 | Structural and constructional steels | chevron_right |
| ES 185 | Structural and constructional steels | chevron_right |
| ES 200 | Structural and constructional steels | chevron_right |
| ES 235 | Structural and constructional steels | chevron_right |
| ES 250 | Structural and constructional steels | chevron_right |
| ES 275 | Structural and constructional steels | chevron_right |
| ES 300 | Structural and constructional steels | chevron_right |
| ES 355 | Structural and constructional steels | chevron_right |
| ES 380 | Structural and constructional steels | chevron_right |