Metals

1. The PropertiesThe Properties
Of Metals.Of Metals.
Metals have many physicalMetals have many physical
and chemical propertiesand chemical properties
which affect their workingwhich affect their working
qualities.qualities.

2. MalleabilityMalleability
The ability of the metal toThe ability of the metal to
be hammered into shapebe hammered into shape
without breaking.without breaking.
Examples are: mild steelExamples are: mild steel
and aluminium.and aluminium.

3. DuctilityDuctility
This means that the metalThis means that the metal
can be drawn into finecan be drawn into fine
wires.wires.
Examples are: copper andExamples are: copper and
mild steel.mild steel.

4. ConductivityConductivity
The ability of the metal toThe ability of the metal to
allow heat and electricityallow heat and electricity
to flow through.to flow through.
Examples are: copper andExamples are: copper and
silver.silver.

5. ToughnessToughness
This means that the metalThis means that the metal
can resist shocks andcan resist shocks and
hard blows.hard blows.
Examples are; carbonExamples are; carbon
steel high speed steel.steel high speed steel.

6. BrittlenessBrittleness
This is the opposite ofThis is the opposite of
toughness. The metal willtoughness. The metal will
break easily when given abreak easily when given a
hard blow.hard blow.
Examples are; cast ironExamples are; cast iron
and zinc.and zinc.

7. HardnessHardness
The metal will resistThe metal will resist
cutting, bending andcutting, bending and
scratching by otherscratching by other
metals.metals.
Examples are; high speedExamples are; high speed
steel (HSS).steel (HSS).

8. ElasticityElasticity
The ability of the metal toThe ability of the metal to
return to it’s originalreturn to it’s original
shape after deformation.shape after deformation.
Example; stainless steel.Example; stainless steel.

9. FusibilityFusibility
This means that the metalThis means that the metal
will become liquid whenwill become liquid when
heated to a sufficientlyheated to a sufficiently
high temperature.high temperature.
All metals are fusible.All metals are fusible.

10. FusibilityFusibility
This means that the metalThis means that the metal
will become liquid whenwill become liquid when
heated to a sufficientlyheated to a sufficiently
high temperature.high temperature.
All metals are fusible.All metals are fusible.