Carbon Steel are iro-carbon alloys containing up to 2.06% of carbon , up to 1.65% of maganese , up to 0.5% of silicon and sulfur and phosphorus as impurities.
Carbon Content in Carbon Steel determines its strength and ductility.
The higher carbon content , the higher steel strength and the lowers its ductility.
It can be classified into :
- Low Carbon Steel : C <0.25% , Good Formality and Weldability , low strength and low costs , can be used in machinery parts
- Medium Carbon Steel : C=0.25% to 0.55% , May be hardened by quenching , can be used in heat treated machine parts
- High Carbon Steel : C>0.55% , High Strength and wear resistance , can be used in screw drivers , hammers , etc.