285.5 HV to HRC

285.5 HV = 27.99 HRC

HVHRC
270.5 HV26.52
275.5 HV27.01
280.5 HV27.5
285.527.99
290.5 HV28.48
295.5 HV28.97
300.5 HV29.46

285.5 HV = 27.99 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