578.5 HRB = 1,041.3 HV
| HRB | HV |
|---|---|
| 563.5 HRB | 1,014.3 |
| 568.5 HRB | 1,023.3 |
| 573.5 HRB | 1,032.3 |
| 578.5 | 1,041.3 |
| 583.5 HRB | 1,050.3 |
| 588.5 HRB | 1,059.3 |
| 593.5 HRB | 1,068.3 |
578.5 HRB = 1,041.3 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