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Civil Engineering QUESTION #6572
Question 1
Alloys containing more than \(2.1\%\) carbon by weight are classified as:
  • Steel
  • Cast Iron✔️
  • Pig Iron
  • Wrought Iron
Correct Answer Explanation
Carbon content defines the iron–carbon alloy type:
  • Steel: \(0.008\% - 2.1\%\) C
  • Cast Iron: \(> 2.1\%\) C (typically \(2.1\% - 4\%\))
Cast iron is brittle and has high compressive strength.