Steel has lower carbon percentage than cast iron. a) - True b) - False

The statement is True.

Explanation:

Steel and cast iron are made up of similar material but the composition of iron and carbon in both are different.

Carbon steel contains 99% iron and only 1% carbon while Cast iron contains 97% iron and 3% carbon.

Thus, steel has lower carbon percentage than cast iron.

However, this minute difference in the composition of both the materials makes a very big difference in the properties of both materials. That's why, Cast iron is more brittle than steel.

Thus, the given statement is true.

TRUE

Explanation:

Steel has low carbon percentage than cast iron.

Steel has carbon content around 2% where as cast iron has carbon content around 4%.

hence, more the carbon percentage more brittle is the material i. e. cast iron is brittle in nature and steel is ductile in nature.

that is why steel is used in various material. It is used from utensil to huge structures.