Question 1

What is 171.5 HRB in HV?

Accepted Answer

171.5 HRB = 308.7 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 308.7 HV in HRB?

Accepted Answer

308.7 HV = 171.5 HRB.

HRB	HV
156.5 HRB	281.7
161.5 HRB	290.7
166.5 HRB	299.7
171.5	308.7
176.5 HRB	317.7
181.5 HRB	326.7
186.5 HRB	335.7

171.5 HRB to HV

Formula (approximate)