(i) Ductility: This is the ability of material to be drawn into thin wire without fracture e.g. copper, aluminum, e.t.c. it is the opposite of brittleness.
(ii) Malleability: This is the ability to be hammered, rolled or bent without fracture or ability of metal to stretch in all directions by hammering without breaking e.g. copper, aluminum, gold etc.
(iii) Hardness: This is the property a metal posses that enables it to resist indentation, wear, cut or scratch e.g. high carbon, steel, cast iron e.t.c. a
harder metal will always cut a softer one.
(iv) Tenacity: This is the ability of a material to resist its particles being torn apart by a pulling or stretching force. It resists distortion e.g. bronze high carbon steel.
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