Vickers, Brinell and Rockwell hardness as well as tensile strength in steel and cast steel

Table A.1 – Conversion of hardness to hardness and hardness to tensile strength for unalloyed and low-alloyed steels and cast steels.
The table values are guide values. The comparison is fraught with uncertainties and should therefore be limited as far as possible to the unavoidable cases. The table values correspond to the DIN EN  ISO 18265, Table A.1 (February 2014 edition).


Note: The numbers in brackets are hardness values which lie outside the definition range of the standardized hardness testing methods, but are practically used as approximate values in many cases.

1): The Brinell hardness values up to 450 HB were determined with the steel ball as the indenter, the higher values with the carbide ball.

All data are without guarantee of correctness and completeness.