615.5 Mohs = 6.03 HRC
| Mohs | HRC |
|---|---|
| 600.5 Mohs | 5.89 |
| 605.5 Mohs | 5.94 |
| 610.5 Mohs | 5.99 |
| 615.5 | 6.03 |
| 620.5 Mohs | 6.08 |
| 625.5 Mohs | 6.13 |
| 630.5 Mohs | 6.18 |
615.5 Mohs = 6.03 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