Rockwell B to Vickers
Type a value in HRB to get it in HV instantly.
116HV
That's 1.08× as hard as 6061-T6 aluminium, while mild steel is 1.21× harder.
Convert the other way: HV to HRB
What it means
How hard is that?
For carbon and alloy steels (ASTM E140). Conversions between scales are approximate; for other metals and for exact values, test on the scale you need.
The math
How to convert HRB to HV
Hardness scales convert by table (ASTM E140): HRC 50 = 513 HV = 481 HB, HRC 40 = 392 HV = 371 HB. Tensile strength ≈ 3.45 × HB MPa.
Example: 65 HRB = 116 HV.
Every unit
That hardness on every scale
Tables
HRB to HV conversion table
| HRB | HV |
|---|---|
| 60 HRB | 107 HV |
| 62 HRB | 110.6 HV |
| 65 HRB | 116 HV |
| 68 HRB | 121.4 HV |
HV to HRB conversion table
| HV | HRB |
|---|---|
| 107 HV | 60 HRB |
| 111 HV | 62.2 HRB |
| 116 HV | 65 HRB |
| 121 HV | 67.8 HRB |
Quick answers
Quick answers
- How many HV is 65 HRB?
- 65 HRB is 116 HV.
The units
About these units
Rockwell B (HRB)
Rockwell B: depth under a 1/16" ball, for softer steel (60–100).
Vickers (HV)
Vickers hardness: load over the area of a diamond-pyramid dent.
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