Question

Two articles are made - one with cast iron and the other with steel. The one with cast iron breaks easily while the one with steel does not break easily. Explain the distinguishing feature.

Answer 1

The main difference between the two elements is that steel is produced from iron ore and scrap metals, and is called alloy of iron with controlled carbon where as around $4\%$ of carbon in an iron makes it caste iron and less than $2\%$ of carbon makes it steel.

Caste iron has more compressive strength and steel is more tensile. So, that is the reason steel does not break easily.