Your team member has decided that he is recommending a grey

Your team member has decided that he is recommending a grey cast iron for a sheet metal part with lots of bends for a Formula SAE car. Provide 3 reasons why you think this is not a good idea.

Solution

1. Cast iron has less ductility so difficult to form (bend/twist/stretch)

2. Cast iron has minimum Malleability (difficult to form into sheets)

3. Cast iron has higher yield point and thus difficult to deform and needs higher force