491.5 HV to HRC

491.5 HV = 48.19 HRC

HVHRC
476.5 HV46.72
481.5 HV47.21
486.5 HV47.7
491.548.19
496.5 HV48.68
501.5 HV49.17
506.5 HV49.66

491.5 HV = 48.19 HRC

Formula (approximate)

1 HRC ≈ 10.2 HV · 1 HRB ≈ 1.8 HV · 1 Mohs ≈ 0.1 HV — approximate; real conversions vary by material per ASTM E140