Different forms of iron

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 Different forms of iron:


Mainly there are three commercial forms of iron.
These are discussed below:

1- Cast iron or pig iron:

It contains about 2 to 5% of carbon along with other impurities such as S,Si,p,Mn etc. It used as sewage pipes and plates as it is resistance to corrosion.

2- Wrought iron: 

It is the purest form of iron containing 0.25% of carbon. It is malleable can be easily welded.

3- Steel: 

It contains about 0.25 to 2 % of carbon i.e, the carbon content of steel is more than that of wrought iron and less than that of cast iron.

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