NF A 49-252
NF A 49-252 (Steel tubes. Welded non alloy steel tubes of diameters 168, 3 mm to 1220 mm used at averagely elevated temperatures. Dimensions. Technical delivery conditions)· AFNOR NF (France) · 4 materials
| Designation | Material group | |
|---|---|---|
| TS 37 CP | Structural and constructional steels | chevron_right |
| TS 42 CP | Structural and constructional steels | chevron_right |
| TS 48 CP | Structural and constructional steels | chevron_right |
| TS 52 CP | Structural and constructional steels | chevron_right |