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Carbon steels can be fusion welded.

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in Casting-Forming-Welding II by (119k points)
Carbon steels can be fusion welded.

(a) True

(b) False

The question was asked in a national level competition.

This intriguing question comes from Welding of Various Metals topic in portion Welding and Related Processes of Casting-Forming-Welding II

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Correct choice is (b) False

The explanation: Carbon steels are best treated using forge welding, resistance welding, arc welding or by gas welding. Carbon steels essentially cannot be fusion welded, because, of the occurrence of cracks which may cause due to carbon pick up.

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