Metals
Ferrous - Metals that contain iron and carbon
Non ferrous - metals that do not contain iron
Ferrous alloy - a mixture of 2 metals that contain iron and carbon
Non ferrous alloy - 2 metals that dont contain iron or carbon

Oxidization - Rusting - Any metal that contains steel will rust.

Mild steel - quite strong, cheap, rusts easily, cant be hardened. USED FOR CAR BODIES.

High carbon steel - harder than mild steel .. rusts.

Cast iron - hard however brittle under impact.


HIGH CONTENT OF CARBON MEANS THE MATERIAL WILL BE BRITTLE!!!


Non ferrous metals

Aluminium - Not as strong as steel - expensive . USED FOR AEROPLANES

BRASS - quite strong corrosion resistant USED FOR DOOR FURNITURE AND ELECTRICAL PARTS.

Copper - soft - conductor of electricity. USED FOR WIRES AND PIPES

Ferrous alloys -
Stainless steel
High speed steel

Non ferrous alloys
Brass
Bronze

25% of earths crust is made up of metal!!!!
ALUMINIUM IS THE MOST COMMON.. FOLLOWED BY IRON.

Iron is extracted, heated up, top layer (the impurities) (slag) are removed. and then cooled to create a greyish metal (purities)

Steel is a mixture of iron and carbon
Alloying with other metals enhance Toughness and resistance to corrosion.
BY DOING THIS YOU CREATE A NEW MATERIAL AND NEW PROPERTIES AND CHARACTERISTICS!!!

Carbon - ORGANIC MATERIALS - like coal and diamond made up purely or carbon.