Question 1

What is 172.5 HRB in HV?

Accepted Answer

172.5 HRB = 310.5 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 310.5 HV in HRB?

Accepted Answer

310.5 HV = 172.5 HRB.

HRB	HV
157.5 HRB	283.5
162.5 HRB	292.5
167.5 HRB	301.5
172.5	310.5
177.5 HRB	319.5
182.5 HRB	328.5
187.5 HRB	337.5

172.5 HRB to HV

Formula (approximate)