GB/T 5218
GB/T 5218 (Alloy spring steel wires)· GB (China) · 6 materials
| Designation | Material group | |
|---|---|---|
| 50CrV(A) | Structural and constructional steels | chevron_right |
| 55CrSiA | Structural and constructional steels | chevron_right |
| 60Si2MnA | Structural and constructional steels | chevron_right |
| 65Si2MnWA | Structural and constructional steels | chevron_right |
| 70Si3MnA | Structural and constructional steels | chevron_right |
| A23503 | Structural and constructional steels | chevron_right |