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Which of these are applications of grey cast iron?

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in Engineering Material & Metallurgy by (773k points)
Which of these are applications of grey cast iron?

(a) Camshafts, engine blocks

(b) Wear plates, pump linings

(c) Brake shoes, pedals

(d) Gears, rocker arms

The question was posed to me in exam.

This interesting question is from Cast Irons topic in portion Non Ferrous Materials of Engineering Material & Metallurgy

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Right option is (a) Camshafts, engine blocks

The best I can explain: Grey cast irons have good strength and corrosion resistance. Therefore, they are used in camshafts and engine blocks. White cast irons are used for pump linings, whereas malleable cast iron is used for pedals and levers. Spheroidal graphite is used in gears and rocker arms.

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