580.5 HRB = 1,044.9 HV
| HRB | HV |
|---|---|
| 565.5 HRB | 1,017.9 |
| 570.5 HRB | 1,026.9 |
| 575.5 HRB | 1,035.9 |
| 580.5 | 1,044.9 |
| 585.5 HRB | 1,053.9 |
| 590.5 HRB | 1,062.9 |
| 595.5 HRB | 1,071.9 |
580.5 HRB = 1,044.9 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