ISO 4997
ISO 4997 (Cold-reduced carbon steel sheet of structural quality)· ISO (International) · 11 materials
| Designation | Material group | |
|---|---|---|
| CH550 | Structural and constructional steels | chevron_right |
| CR 220 | Structural and constructional steels | chevron_right |
| CR 250 | Structural and constructional steels | chevron_right |
| CR 280 | Structural and constructional steels | chevron_right |
| CR 320 | Structural and constructional steels | chevron_right |
| CR220 Class B | Structural and constructional steels | chevron_right |
| CR220 Class D | Structural and constructional steels | chevron_right |
| CR250 Class B | Structural and constructional steels | chevron_right |
| CR250 Class D | Structural and constructional steels | chevron_right |
| CR320 Class B | Structural and constructional steels | chevron_right |
| CR320 Class D | Structural and constructional steels | chevron_right |