321.5 HV to HRC

321.5 HV = 31.52 HRC

HVHRC
306.5 HV30.05
311.5 HV30.54
316.5 HV31.03
321.531.52
326.5 HV32.01
331.5 HV32.5
336.5 HV32.99

321.5 HV = 31.52 HRC

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