Question 1

What is 142.5 HRB in HV?

Accepted Answer

142.5 HRB = 256.5 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 256.5 HV in HRB?

Accepted Answer

256.5 HV = 142.5 HRB.

HRB	HV
127.5 HRB	229.5
132.5 HRB	238.5
137.5 HRB	247.5
142.5	256.5
147.5 HRB	265.5
152.5 HRB	274.5
157.5 HRB	283.5

142.5 HRB to HV

Formula (approximate)