Question 1

What is 551 Mohs in HRC?

Accepted Answer

551 Mohs = 5.4 HRC. Use the converter on this page to convert to other hardness units instantly.

Question 2

How do you convert Mohs to HRC?

Accepted Answer

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. Multiply your Mohs value by the appropriate factor to get HRC, or use the interactive converter above.

Question 3

What is 5.4 HRC in Mohs?

Accepted Answer

5.4 HRC = 550.8 Mohs.

Mohs	HRC
536 Mohs	5.25
541 Mohs	5.3
546 Mohs	5.35
551	5.4
556 Mohs	5.45
561 Mohs	5.5
566 Mohs	5.55

551 Mohs to HRC

Formula (approximate)