Question 1

What is 356.5 HRB in HV?

Accepted Answer

356.5 HRB = 641.7 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 641.7 HV in HRB?

Accepted Answer

641.7 HV = 356.5 HRB.

HRB	HV
341.5 HRB	614.7
346.5 HRB	623.7
351.5 HRB	632.7
356.5	641.7
361.5 HRB	650.7
366.5 HRB	659.7
371.5 HRB	668.7

356.5 HRB to HV

Formula (approximate)