390.5 HRC = 3,983.1 HV
| HRC | HV |
|---|---|
| 375.5 HRC | 3,830.1 |
| 380.5 HRC | 3,881.1 |
| 385.5 HRC | 3,932.1 |
| 390.5 | 3,983.1 |
| 395.5 HRC | 4,034.1 |
| 400.5 HRC | 4,085.1 |
| 405.5 HRC | 4,136.1 |
390.5 HRC = 3,983.1 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