507.5 Mohs = 4.98 HRC
| Mohs | HRC |
|---|---|
| 492.5 Mohs | 4.83 |
| 497.5 Mohs | 4.88 |
| 502.5 Mohs | 4.93 |
| 507.5 | 4.98 |
| 512.5 Mohs | 5.02 |
| 517.5 Mohs | 5.07 |
| 522.5 Mohs | 5.12 |
507.5 Mohs = 4.98 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