450.5 Mohs = 4.42 HRC
| Mohs | HRC |
|---|---|
| 435.5 Mohs | 4.27 |
| 440.5 Mohs | 4.32 |
| 445.5 Mohs | 4.37 |
| 450.5 | 4.42 |
| 455.5 Mohs | 4.47 |
| 460.5 Mohs | 4.51 |
| 465.5 Mohs | 4.56 |
450.5 Mohs = 4.42 HRC
1 HRC ≈ 10.2 HV · 1 HRB ≈ 1.8 HV · 1 Mohs ≈ 0.1 HV — approximate; real conversions vary by material per ASTM E140