Multiple choice Percentage of carbon in steel ranges from …………….. 0.1 to 1.5. 2.5 to 4.5 4.1 to 5.5 None of these Reveal answer Fill a bubble to check yourself A Correct answer Explanation Steel is an alloy of iron and carbon. The carbon content in steel typically ranges from 0.02% to about 2.1% by weight, making 0.1 to 1.5 the most accurate range provided.