Question 1

What is 31.5 HRB in HV?

Accepted Answer

31.5 HRB = 56.7 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 56.7 HV in HRB?

Accepted Answer

56.7 HV = 31.5 HRB.

HRB	HV
25.5 HRB	45.9
27.5 HRB	49.5
29.5 HRB	53.1
31.5	56.7
33.5 HRB	60.3
35.5 HRB	63.9
37.5 HRB	67.5

31.5 HRB to HV

Formula (approximate)