552.5 Mohs = 5.42 HRC
| Mohs | HRC |
|---|---|
| 537.5 Mohs | 5.27 |
| 542.5 Mohs | 5.32 |
| 547.5 Mohs | 5.37 |
| 552.5 | 5.42 |
| 557.5 Mohs | 5.47 |
| 562.5 Mohs | 5.51 |
| 567.5 Mohs | 5.56 |
552.5 Mohs = 5.42 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