The percentage of carbon in cast iron is :

Q. The percentage of carbon in cast iron is :
Answer: 3 to 5
Notes: Cast Iron is a hard, brittle, nonmalleable non-weldable, iron-carbon alloy. It contains 2 to 4.5 percent carbon, 0.5 to 3 percent silicon, and lesser amounts of sulfur, manganese, and phosphorus.

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