931 HRB = 1,675.8 HV
| HRB | HV |
|---|---|
| 916 HRB | 1,648.8 |
| 921 HRB | 1,657.8 |
| 926 HRB | 1,666.8 |
| 931 HRB | 1,675.8 |
| 936 HRB | 1,684.8 |
| 941 HRB | 1,693.8 |
| 946 HRB | 1,702.8 |
931 HRB = 1,675.8 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