Question 1

What is 51 HRB in HV?

Accepted Answer

51 HRB = 91.8 HV. Use the converter on this page to convert to other hardness units instantly.

Question 2

How do you convert HRB to HV?

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 HRB value by the appropriate factor to get HV, or use the interactive converter above.

Question 3

What is 91.8 HV in HRB?

Accepted Answer

91.8 HV = 51 HRB.

HRB	HV
36 HRB	64.8
41 HRB	73.8
46 HRB	82.8
51	91.8
56 HRB	100.8
61 HRB	109.8
66 HRB	118.8

51 HRB to HV

Formula (approximate)