DT AS Metals revision notes


Metals can be split into three categories; ferrous, non ferrous and alloys

Ferrous - metals are magnetic and contain iron

Non ferrous - metals that dont contain iron and arent magnetic

alloys - two or more different types of metals combined together for a certain function e.g. to improve strength

Ferrous metals

Ferrous metals include;

cast iron - good corrosion resistance

wrought iron - mallueable

mild steel - ductile, tough, high tensile strength

high carbon steel - low impact strength, used where hardness is needed e.g hammers

(Bascially if they are iron or steel


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