838 Mohs = 8.22 HRC
| Mohs | HRC |
|---|---|
| 823 Mohs | 8.07 |
| 828 Mohs | 8.12 |
| 833 Mohs | 8.17 |
| 838 Mohs | 8.22 |
| 843 Mohs | 8.26 |
| 848 Mohs | 8.31 |
| 853 Mohs | 8.36 |
838 Mohs = 8.22 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