Question 1

What is 39 HRB in HV?

Accepted Answer

39 HRB = 70.2 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 70.2 HV in HRB?

Accepted Answer

70.2 HV = 39 HRB.

HRB	HV
33 HRB	59.4
35 HRB	63
37 HRB	66.6
39	70.2
41 HRB	73.8
43 HRB	77.4
45 HRB	81

39 HRB to HV

Formula (approximate)