Question 1

What is 412.5 HRB in HV?

Accepted Answer

412.5 HRB = 742.5 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 742.5 HV in HRB?

Accepted Answer

742.5 HV = 412.5 HRB.

HRB	HV
397.5 HRB	715.5
402.5 HRB	724.5
407.5 HRB	733.5
412.5	742.5
417.5 HRB	751.5
422.5 HRB	760.5
427.5 HRB	769.5

412.5 HRB to HV

Formula (approximate)