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

Gray cast iron\'s extremely low tensile strength makes it a poor shock resistor relative to newer, less rigid iron alloy varieties.

Blasting gray iron can weaken castings by causing residual stress.

Gray iron may be too brittle for some applications, including instances when a casting must be especially thin or flexible like sheet