64.5 HV to HRC

64.5 HV = 6.32 HRC

HVHRC
49.5 HV4.85
54.5 HV5.34
59.5 HV5.83
64.56.32
69.5 HV6.81
74.5 HV7.3
79.5 HV7.79

64.5 HV = 6.32 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