A SHORT DESCRIPTION ABOUT THE METAL OF ALUMINIUM

1. PRESENTED BY
MSM MUZAHIR
B/QS/04/06/11
BATTI BCAS
LECTURER
MR.SRISKANDARAJA(Eng.)

3.  Al is a chemical elements. Al is light,
silver-gray metal used for making pans etc.
 In the earth crust al is found most
abundant (8.3% by weight) metallic
element

4.  And third most abundant of all element
(after oxygen & Silicon), it is extracted from
ore called bauxite.
 Al can be represented as ‘Al’ number in
the periodic table is 13. Strictly speaking Al
applies the pure metal.

5.  Electrical Conductors
- Al have a conductivity averaging
62% of the International Annealed
Copper Standard (IACS) but,
because of its density, it can carry
more than twice as much electricity
as an equivalent weight of copper.
- A very large proportion of overhead,
high voltage, power lines utilise Al
rather than copper as the conductor
on weight grounds.

6.  Transport
-The transport and automotive industry is
the fastest-growing market segment for Al
suppliers.
-Various alloys of Al are now also
used in passenger and freight rail
cars, commercial vehicles, military
vehicles, ships & boats, buses &
coaches, bicycles and increasingly
in motor cars.

7.  Packaging -The successful use of the 1000 series
alloys as foil for food wrapping and for
containers utilises their good
corrosion resistance and barrier
properties against UV light, moisture
and odour.
-The most significant use of Al in
packaging has been in the production
of beverage cans which incorporate
the easy open ring pull' in the lid.

8.  Building and Architecture
Shaped aluminum
Al is used in buildings for a
wide spectrum of applications.
These include roofing for factories which incorporate foil vapour barriers,
windows and pre formed sheet cladding features, doors,
canopies and fronts for shops and prestigious buildings,
architectural hardware and fittings, rainwater goods and replacement windows.

9.  Foils
 Al is produced in commercial
foils as thin as 0.0065 mm (or
6.5 µm). Material thicker than
0.2mm is called sheet or strip.
Pharmaceutical packaging, Food protection and packaging,
Insulation, Electrical shielding, Laminates, or Light aluminum foil

10.  High Pressure Gas Cylinders
 Ladders and Access Equipment
 Sporting Equipment
 Domestic and Office Furniture
 Machined Components
 Road Barriers and Signs

11. Colour –light wave length
Specific heat – the heat required to raise
the temperature of one gram of a
substance by one degree centigrade (J/kg
K)

12. Density – mass per unit volume
expressed in such units as kg/cm 3
Thermal Conductivity –rate at which heat
flows through a given material (W/m K)

13.  Melting Point – a temperature at which a
solid begins to liquify
 Electrical Conductivity – a measure of
how strongly a material opposes the flow
of electric current (Ω⋅m)

14.  Coefficient of Thermal Expansion –
degree of expansion divided by the change
in temperature (m/°C)

15.  Tensile Strength – measures the force
required to pull something such as
rope,wire or a structural beam to the point
where it breaks
 Ductility – a measure of how much strain
a material can take before rupturing

16.  Malleability – the property of a material
that can be worked or hammered or
shaped without breaking
 Brittleness – breaking or shattering of a
material when subjected to stress (when
force is applied to it)

17.  Elasticity – the property of a material that
returns to its original shape after stress
(e.g. external forces) that made it deform
or distort is removed
 Plasticity - the deformation of a material
undergoing non-reversible changes of
shape in response to applied forces

18.  Toughness – the ability of a material to
absorb energy and plastically deform
without fracturing
 Hardness – the property of being rigid
and resistant to pressure; not easily
scratched

19.  Machinability – the property of a material
that can be shaped by hammering,
pressing, rolling

20.  Corrosion Resistance - a material's
ability to resist deterioration caused by
exposure to an environment

21.  Al is the world's most abundant metal
and very important in our life.
 By utilizing various combinations of its
advantageous properties such as
strength, lightness, corrosion
resistance, recyclability and formability,
Al is being employed in an ever-
increasing number of applications.