18.5 HV to HRC

18.5 HV = 1.81 HRC

HVHRC
15.5 HV1.52
16.5 HV1.62
17.5 HV1.72
18.51.81
19.5 HV1.91
20.5 HV2.01
21.5 HV2.11

18.5 HV = 1.81 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