This table shows approximate hardness of steel using Brinell, Rockwell B and C and Vickers scales. These conversion charts are provided for guidance only as each scales uses different methods of measuring hardness. The right hand column show an approximate equivalent tensile strength.

Steel Hardness conversion calculator
Brinell Hardness HB	Rockwell C - HRC	Rockwell B - HRB	Vickers - HV
Enter a figure into any of the fields and click calculate, the nearest values in each scale is shown, or zero if out of range. Values are approximate and for guidance only.