Ключевые слова:
Elongation|Ductility|Testing conditions|Classification systems|Cast-iron|Ferrous alloys|Blackheart malleable cast-iron|Proof stress|Designations|Hardness|Test specimens|Strength of materials|Tensile testing|Tensile strength|Malleable cast-iron|Whiteheart malleable cast-iron|Castings|Foundry engineering