Question 1

What is 428.5 HRB in HV?

Accepted Answer

428.5 HRB = 771.3 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 771.3 HV in HRB?

Accepted Answer

771.3 HV = 428.5 HRB.

HRB	HV
413.5 HRB	744.3
418.5 HRB	753.3
423.5 HRB	762.3
428.5	771.3
433.5 HRB	780.3
438.5 HRB	789.3
443.5 HRB	798.3

428.5 HRB to HV

Formula (approximate)