629.5 Mohs = 6.17 HRC
| Mohs | HRC |
|---|---|
| 614.5 Mohs | 6.02 |
| 619.5 Mohs | 6.07 |
| 624.5 Mohs | 6.12 |
| 629.5 | 6.17 |
| 634.5 Mohs | 6.22 |
| 639.5 Mohs | 6.27 |
| 644.5 Mohs | 6.32 |
629.5 Mohs = 6.17 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