Question 1

What is 357.5 HRB in HV?

Accepted Answer

357.5 HRB = 643.5 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 643.5 HV in HRB?

Accepted Answer

643.5 HV = 357.5 HRB.

HRB	HV
342.5 HRB	616.5
347.5 HRB	625.5
352.5 HRB	634.5
357.5	643.5
362.5 HRB	652.5
367.5 HRB	661.5
372.5 HRB	670.5

357.5 HRB to HV

Formula (approximate)