407.5 HRB to HV

407.5 HRB = 733.5 HV

HRBHV
392.5 HRB706.5
397.5 HRB715.5
402.5 HRB724.5
407.5733.5
412.5 HRB742.5
417.5 HRB751.5
422.5 HRB760.5

407.5 HRB = 733.5 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