Metal

= METAL [|MATERIALS] =

SUMMARY: 

In this unit we have studied the metal materials. We have to distinguish between ferrous and non ferrous materials.

•Ferrous metals:  those that contain a lot of iron or completely iron. We can distinguish three principal types: -Sweet iron -Steel -Cast iron  •Non ferrous metals: those that contain little or no iron at all. Some of them are these: -Copper (Cu ) -Tin ( Sn) -Zinc ( ZN) -Aluminium (Al ) -Magnesium ( Mg) -Titanium (Ti )

When a metal is not mixed with another metal, it is a pure metal, but when a metal is mixed with another metal or non metal, it is an alloy. For example: - Aluminium alloy. - Bronze. - Brass.

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