553.5 Mohs = 5.43 HRC
| Mohs | HRC |
|---|---|
| 538.5 Mohs | 5.28 |
| 543.5 Mohs | 5.33 |
| 548.5 Mohs | 5.38 |
| 553.5 | 5.43 |
| 558.5 Mohs | 5.48 |
| 563.5 Mohs | 5.52 |
| 568.5 Mohs | 5.57 |
553.5 Mohs = 5.43 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