Q. What is the effect of increased carbon content on chilled cast iron?

A
Chilling depth increases
B
Hardness of chilled zone increases
C
Both a. and b.
D
None of the above
Solution:

It is produced by casting molten metal against a metal chill.
Chilled cast iron consists of carbon, silicon, and manganese. As carbon content increases depth of chill decreases but hardness of chilled zone increases.

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