339.5 Mohs = 3.33 HRC
| Mohs | HRC |
|---|---|
| 324.5 Mohs | 3.18 |
| 329.5 Mohs | 3.23 |
| 334.5 Mohs | 3.28 |
| 339.5 | 3.33 |
| 344.5 Mohs | 3.38 |
| 349.5 Mohs | 3.43 |
| 354.5 Mohs | 3.48 |
339.5 Mohs = 3.33 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