Carbon steel is the most utilized steel in the industries and accounts for more than 90% of the total steel production. Based on the carbon content, Carbon steels are further classified into three groups.

1. Low Carbon Steel/Mild Steel
2. Medium Carbon Steel
3. High Carbon steel

Carbon content is given in the table below:

S.No.    Type of carbon steelPercentage of Carbon
1              Low Carbon Steel/Mild steelUpto 0.25%

2              Medium Carbon Steel0.25% to 0.60%

3              High Carbon steel0.60% to 1.5%