Ключевые слова:
Metals, Hardness, Hardness measurement, Conversion, Steels, Unalloyed steels, Alloy steels, Heat-treatable steels, Tool steels, High-speed tool steels, Cast-iron, Aluminium, Aluminium alloys, Copper, Brass, Non-ferrous metals, Non-ferrous alloys, Hardmetals, Brinell hardness measurement, Rockwell hardness measurement, Vickers hardness measurement