176.5 HRB to HV

176.5 HRB = 317.7 HV

HRBHV
161.5 HRB290.7
166.5 HRB299.7
171.5 HRB308.7
176.5317.7
181.5 HRB326.7
186.5 HRB335.7
191.5 HRB344.7

176.5 HRB = 317.7 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