GB/T 3530
GB/T 3530 (Heat treatment spring steel strips)· GB (China) · 8 materials
| Designation | Material group | |
|---|---|---|
| 60Si2MnA | Structural and constructional steels | chevron_right |
| 65Mn | Structural and constructional steels | chevron_right |
| 70Si2CrA | Structural and constructional steels | chevron_right |
| T10A | Tool steels | chevron_right |
| T7A | Tool steels | chevron_right |
| T8A | Tool steels | chevron_right |
| T9A | Tool steels | chevron_right |
| U21652 | Structural and constructional steels | chevron_right |