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Steels containing 0.8% C are called ________

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Steels containing 0.8% C are called ________

(a) Eutectoid

(b) Hypoeutectoid

(c) Hypereutectoid

(d) Mild eutectoid

This question was posed to me in exam.

The query is from Transformation of Steel and Cast Iron in section Constitution of Alloys and Phase Diagrams of Engineering Material & Metallurgy

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Right answer is (a) Eutectoid

Easy explanation: In general, the different types of ferrous alloys are steel, iron, and cast iron. Steels are further subdivided as eutectoid, hypoeutectoid, and hypereutectoid. Eutectoid steels contain 0.8% of carbon content.

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