GB/T 35840.1
GB/T 35840.1 (Steels for plastic mould-Part 1: Non-alloy steels)· GB (China) · 6 materials
| Designation | Material group | |
|---|---|---|
| SM45 | Tool steels | chevron_right |
| SM50 | Tool steels | chevron_right |
| SM55 | Tool steels | chevron_right |
| T10450 | Tool steels | chevron_right |
| T10500 | Tool steels | chevron_right |
| T10550 | Tool steels | chevron_right |