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Which of the following is the most pattern materials are corrosion prone?

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+1 vote
in Foundry and Forging by (110k points)
Which of the following is the most pattern materials are corrosion prone?

(a) Grey Cast Iron

(b) Steel

(c) Brass

(d) Lead

This question was posed to me in exam.

Origin of the question is Pattern Materials topic in chapter Pattern Materials & Moulding Sand Tests of Foundry and Forging

1 Answer

+1 vote
by (736k points)
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Best answer
The correct choice is (a) Grey Cast Iron

The best I can explain: The Grey cast iron is a ferrous component hence it is corrosion prone. Even though the steel is an alloy of Iron, it is heterogeneous component and is less prone to corrosion than Grey cast Iron.

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