45 Mohs to HRC

45 Mohs = 0.44 HRC

MohsHRC
39 Mohs0.38
41 Mohs0.4
43 Mohs0.42
450.44
47 Mohs0.46
49 Mohs0.48
51 Mohs0.5

45 Mohs = 0.44 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