521.5 HRC = 5,319.3 HV
| HRC | HV |
|---|---|
| 506.5 HRC | 5,166.3 |
| 511.5 HRC | 5,217.3 |
| 516.5 HRC | 5,268.3 |
| 521.5 | 5,319.3 |
| 526.5 HRC | 5,370.3 |
| 531.5 HRC | 5,421.3 |
| 536.5 HRC | 5,472.3 |
521.5 HRC = 5,319.3 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