320.5 Mohs = 3.14 HRC
| Mohs | HRC |
|---|---|
| 305.5 Mohs | 3 |
| 310.5 Mohs | 3.04 |
| 315.5 Mohs | 3.09 |
| 320.5 | 3.14 |
| 325.5 Mohs | 3.19 |
| 330.5 Mohs | 3.24 |
| 335.5 Mohs | 3.29 |
320.5 Mohs = 3.14 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