74.5 Mohs to HRC

74.5 Mohs = 0.73 HRC

MohsHRC
59.5 Mohs0.58
64.5 Mohs0.63
69.5 Mohs0.68
74.50.73
79.5 Mohs0.78
84.5 Mohs0.83
89.5 Mohs0.88

74.5 Mohs = 0.73 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