256.5 HRB to HV

256.5 HRB = 461.7 HV

HRBHV
241.5 HRB434.7
246.5 HRB443.7
251.5 HRB452.7
256.5461.7
261.5 HRB470.7
266.5 HRB479.7
271.5 HRB488.7

256.5 HRB = 461.7 HV

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