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Hardness Conversion Chart

Convert between HRC, HRB, HB (Brinell), HV (Vickers), and approximate tensile strength for steel — based on ASTM E140. Enter a value in any scale and get instant equivalents. No login required.

HOW IT WORKS

  1. Pick an input scale — HRC, HRB, HB, HV, or tensile strength in ksi or MPa.
  2. Type your hardness value — results update instantly with all equivalent scales.
  3. Read the conversions — see the matched row highlighted in the full reference table below.
  4. Export CSV to save the converted row for your engineering records.
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Hardness Conversion
ASTM E140 approximate equivalents for steel
Input scale
Enter value
Conversions are approximate, apply to steel only, per ASTM E140.
Full Reference Table
HRCHRBHBHVTS (ksi)TS (MPa)
2097.0226238112772
2298.2237250117807
2499.5247261121834
26—258272126869
28—271285131903
30—285300138951
32—3013171451000
34—3183361531055
36—3373561611110
38—3573801701172
40—3814061811248
42—4014311911317
44—4214592011386
46—4444922131469
48—4615222221531
50—4815562341614
52—5015912451690
54—5216302581779
56—5436742721876
58—5677222871979
60—5957803052103
62—6278483252241
64—6649313482400
65—6829763592476
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