11.5 HRB to HV

11.5 HRB = 20.7 HV

HRBHV
8.5 HRB15.3
9.5 HRB17.1
10.5 HRB18.9
11.520.7
12.5 HRB22.5
13.5 HRB24.3
14.5 HRB26.1

11.5 HRB = 20.7 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