Sulphur in steel

A. Acts as deoxidiser

B. Reduces the grain size

C. Decreases tensile strength and hardness

D. Lowers the toughness and transverse ductility

Answer: Option D

Solution(By Examveda Team)

sulfur is normally regarded as an impurity and has an adverse effect on impact properties when a steel is high in sulphur and low in manganese.
Sulphur improves machinability but lowers transverse ductility and notched impact toughness and has little effects on the longitudinal mechanical properties