742.5 Mohs = 7.28 HRC
| Mohs | HRC |
|---|---|
| 727.5 Mohs | 7.13 |
| 732.5 Mohs | 7.18 |
| 737.5 Mohs | 7.23 |
| 742.5 | 7.28 |
| 747.5 Mohs | 7.33 |
| 752.5 Mohs | 7.38 |
| 757.5 Mohs | 7.43 |
742.5 Mohs = 7.28 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