Question 1

What is 343.5 HRB in HV?

Accepted Answer

343.5 HRB = 618.3 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 618.3 HV in HRB?

Accepted Answer

618.3 HV = 343.5 HRB.

HRB	HV
328.5 HRB	591.3
333.5 HRB	600.3
338.5 HRB	609.3
343.5	618.3
348.5 HRB	627.3
353.5 HRB	636.3
358.5 HRB	645.3

343.5 HRB to HV

Formula (approximate)