258.5 HRC = 2,636.7 HV
| HRC | HV |
|---|---|
| 243.5 HRC | 2,483.7 |
| 248.5 HRC | 2,534.7 |
| 253.5 HRC | 2,585.7 |
| 258.5 | 2,636.7 |
| 263.5 HRC | 2,687.7 |
| 268.5 HRC | 2,738.7 |
| 273.5 HRC | 2,789.7 |
258.5 HRC = 2,636.7 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