Aluminum

Question 1

What is the density?

Answer 1

Less then most metals except magnesium.

Question 2

Electrical and thermal conductivity of aluminum?

Answer 2

Four times more then steel. The electrical conductivity is 60%of the rate in copper and thermal is half of copper.

Question 3

Linear expansion of aluminum?

Answer 3

Twice that of steel.

Question 4

Is it magnetic?

Answer 4

No

Question 5

Does it spark?

Answer 5

No so it can be used for storage of explosive or flammable materials.

Question 6

Corrosion resistance?

Answer 6

Has an oxide film that protects it from corrosion.

Question 7

What are different ways of casting aluminum?

Answer 7

Die casting
Permanent mould
Sand casting
Centrifugal casting

Question 8

What are die castings used for?

Answer 8

Air-cooled cylinder heads
Connecting rods
Street light housings

Question 9

What are permanent mouldings for?

Answer 9

Carburetor bodies
Compressors
Marine hardware

Question 10

What are sand castings for?

Answer 10

Pipe fittings
Gear housings
Water-cooled cylinder blocks
Spirit levels