155.5 Mohs = 1.52 HRC
| Mohs | HRC |
|---|---|
| 140.5 Mohs | 1.38 |
| 145.5 Mohs | 1.43 |
| 150.5 Mohs | 1.48 |
| 155.5 | 1.52 |
| 160.5 Mohs | 1.57 |
| 165.5 Mohs | 1.62 |
| 170.5 Mohs | 1.67 |
155.5 Mohs = 1.52 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