604.5 HRB = 1,088.1 HV
| HRB | HV |
|---|---|
| 589.5 HRB | 1,061.1 |
| 594.5 HRB | 1,070.1 |
| 599.5 HRB | 1,079.1 |
| 604.5 | 1,088.1 |
| 609.5 HRB | 1,097.1 |
| 614.5 HRB | 1,106.1 |
| 619.5 HRB | 1,115.1 |
604.5 HRB = 1,088.1 HV
1 HRC ≈ 10.2 HV · 1 HRB ≈ 1.8 HV · 1 Mohs ≈ 0.1 HV — approximate; real conversions vary by material per ASTM E140