Engineering Materials
Admiralty gun metal contains

63 to 67% nickel and 30% copper
88% copper, 10% tin and rest zinc
Alloy of tin, lead and cadmium
Iron scrap and zinc

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Engineering Materials
Pick up wrong statement about wrought iron

It is very soft and ductile
It contains carbon of the order of 0 to 0.25%
It is made by adding suitable percentage of carbon to molten iron and subjecting the product to repeated hammering and rolling
It melts at 1535°C

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