263.5 HV to HRC

263.5 HV = 25.83 HRC

HVHRC
248.5 HV24.36
253.5 HV24.85
258.5 HV25.34
263.525.83
268.5 HV26.32
273.5 HV26.81
278.5 HV27.3

263.5 HV = 25.83 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