Answer
With respect to mechanical characteristics:
White iron- Extremely hard and brittle.
Nodular cast iron- Moderate strength and ductility. (Though Nodular cast iron has a higher degree of ductility than do other cast irons, cast irons are in general extremely brittle.)
Work Step by Step
With respect to mechanical characteristics:
White iron- Extremely hard and brittle.
Nodular cast iron- Moderate strength and ductility.
