Alloys

ALLOY

An alloy is a mixture or metallic solid

solution composed of two or

more elements .Alloys usually have

different properties from those of the

component elements.

WHAT IS AN ALLOY?

Why Alloys ARE USED

•To increase hardness of metals.•To make metals more resistant to attack by chemicals.•To change the properties of metals in other ways.

Alloys and their composition

BrassStainless steel BronzeSolderSteelGerman silver

-Cu ,Ag -Fe , Cr , Ni

-Cu , Tin-Pb , Tin-Fe , C

-Cu , Zn , Ni

YEALLOYS & PROPERTIESHard,corrosion resistantBrass-

Stainless steel Bronze-Solder-Steel-German silver-

-Strong,rust freeHard,corrosion resistantLow melting point

Very strongElectric resistant

Uses of Alloy