297.5 HRB to HV

297.5 HRB = 535.5 HV

HRBHV
282.5 HRB508.5
287.5 HRB517.5
292.5 HRB526.5
297.5535.5
302.5 HRB544.5
307.5 HRB553.5
312.5 HRB562.5

297.5 HRB = 535.5 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