This International Standard specifies the principles of the conversion of hardness values and gives general information on the use of conversion tables.
The conversion tables in Annexes A to F apply to
— unalloyed and low-alloy steels and cast iron;
— steels for quenching and tempering;
— cold working steels;
— high speed steels;
— hardmetals;
— non-ferrous metals and alloys.
NOTE The conversion tables in Annexes B to E are based on empirical results which were evaluated by means of regression analysis. Such analysis was not possible in the case of the values given in Annex A because a sufficient number of results was not available.
ISO 18265:2003 history
2013ISO 18265:2013 Metallic materials.Conversion of hardness values
2003ISO 18265:2003 Metallic materials - Conversion of hardness values