Question

The percentage of carbon in cast iron is:

• A. $5-10$
• B. $0.25-2.5$
• C. $2.5-4.5$
• D. $0.12-0.2$

Answer 1

The correct option is C $2.5-4.5$

Cast iron is an impure form of iron and contains about $93-94$% $Fe,2-4$% carbon and remaining are the impurities of $Si,P,S$ and $Mn$. It is obtained from pig iron.