Multiple choice

Which form of iron has got the highest carbon content?

  1. Mild steel

  2. Stainless steel

  3. Wrought iron

  4. Cast iron
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cast iron is produced in a blast furnace and contains the highest percentage of carbon among common iron forms, typically ranging from 2 percent to 4 percent. Wrought iron has the lowest carbon content, while mild and stainless steels fall in between.

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