442.5 Mohs = 4.34 HRC
| Mohs | HRC |
|---|---|
| 427.5 Mohs | 4.19 |
| 432.5 Mohs | 4.24 |
| 437.5 Mohs | 4.29 |
| 442.5 | 4.34 |
| 447.5 Mohs | 4.39 |
| 452.5 Mohs | 4.44 |
| 457.5 Mohs | 4.49 |
442.5 Mohs = 4.34 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