Question

How much carbon does hypoeutectoid steel contain?

(a) <0.8%

(b) 0.8%

(c) >0.8%

(d) 8%

This question was posed to me in quiz.

My question comes from Transformation of Steel and Cast Iron in section Constitution of Alloys and Phase Diagrams of Engineering Material & Metallurgy

Answer 1

The correct choice is (a) <0.8%

The best explanation: In general, the different types of ferrous alloys are steel, iron, and cast iron. Steels are further subdivided as eutectoid, hypoeutectoid, and hypereutectoid. Hypoeutectoid steels contain less than 0.8% of carbon content, whereas hypereutectoid steels contain over 0.8%.