609.5 Mohs = 5.98 HRC
| Mohs | HRC |
|---|---|
| 594.5 Mohs | 5.83 |
| 599.5 Mohs | 5.88 |
| 604.5 Mohs | 5.93 |
| 609.5 | 5.98 |
| 614.5 Mohs | 6.02 |
| 619.5 Mohs | 6.07 |
| 624.5 Mohs | 6.12 |
609.5 Mohs = 5.98 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