549.5 Mohs = 5.39 HRC
| Mohs | HRC |
|---|---|
| 534.5 Mohs | 5.24 |
| 539.5 Mohs | 5.29 |
| 544.5 Mohs | 5.34 |
| 549.5 | 5.39 |
| 554.5 Mohs | 5.44 |
| 559.5 Mohs | 5.49 |
| 564.5 Mohs | 5.53 |
549.5 Mohs = 5.39 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