571.5 Mohs = 5.6 HRC
| Mohs | HRC |
|---|---|
| 556.5 Mohs | 5.46 |
| 561.5 Mohs | 5.5 |
| 566.5 Mohs | 5.55 |
| 571.5 | 5.6 |
| 576.5 Mohs | 5.65 |
| 581.5 Mohs | 5.7 |
| 586.5 Mohs | 5.75 |
571.5 Mohs = 5.6 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