Question 1

What is 139.5 HRB in HV?

Accepted Answer

139.5 HRB = 251.1 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 251.1 HV in HRB?

Accepted Answer

251.1 HV = 139.5 HRB.

HRB	HV
124.5 HRB	224.1
129.5 HRB	233.1
134.5 HRB	242.1
139.5	251.1
144.5 HRB	260.1
149.5 HRB	269.1
154.5 HRB	278.1

139.5 HRB to HV

Formula (approximate)