420.5 HV to HRC

420.5 HV = 41.23 HRC

HVHRC
405.5 HV39.75
410.5 HV40.25
415.5 HV40.74
420.541.23
425.5 HV41.72
430.5 HV42.21
435.5 HV42.7

420.5 HV = 41.23 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