Types and Properties of Metals
Metals have more than 70 varieties and each has its own distinct properties that suit a specific use, such as gold, silver, copper, tin, iron, and lead which can be hammered and molded into different shapes and forms.
Two Basic Types of Metals
1. Ferrous Metals - contain iron
2. Non-ferrous metals - do not contain iron (Alloy - a mixture of two or more kinds of metals)
Properties of Metals
1. Malleability - the quality of being hammered and flattened into thin sheets without
breaking
2. Ductility - the ability of metals to be drawn out into fine wires without breaking
3. Hardness - enables the metal to resist force without changing its shape
4. Brittleness - the quality of a metal to break easily
5. Elasticity - enables the metal to return to its original shape after bending and pulling
it out of shape
6. Fusibility - the characteristic of metal to melt easily and combine with other metals
to make an alloy
7. Machinability - the extent to which a metal can be shaped, chipped or smoothened
by a machine
8. Permeability - is the measure of the ease with which magnetic flux can be established
in a material
9. Luster - is the quality and intensity of light reflected from the surface of materials
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