Question 1

What is 15.5 HRB in HV?

Accepted Answer

15.5 HRB = 27.9 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 27.9 HV in HRB?

Accepted Answer

27.9 HV = 15.5 HRB.

HRB	HV
12.5 HRB	22.5
13.5 HRB	24.3
14.5 HRB	26.1
15.5	27.9
16.5 HRB	29.7
17.5 HRB	31.5
18.5 HRB	33.3

15.5 HRB to HV

Formula (approximate)