Question 1

What is 151.5 HRB in HV?

Accepted Answer

151.5 HRB = 272.7 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 272.7 HV in HRB?

Accepted Answer

272.7 HV = 151.5 HRB.

HRB	HV
136.5 HRB	245.7
141.5 HRB	254.7
146.5 HRB	263.7
151.5	272.7
156.5 HRB	281.7
161.5 HRB	290.7
166.5 HRB	299.7

151.5 HRB to HV

Formula (approximate)