Question 1

What is 478.5 HRB in HV?

Accepted Answer

478.5 HRB = 861.3 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 861.3 HV in HRB?

Accepted Answer

861.3 HV = 478.5 HRB.

HRB	HV
463.5 HRB	834.3
468.5 HRB	843.3
473.5 HRB	852.3
478.5	861.3
483.5 HRB	870.3
488.5 HRB	879.3
493.5 HRB	888.3

478.5 HRB to HV

Formula (approximate)