Which of the following are the ingredients of gun metal?
A
Iron, Zinc and Titanium
B
Iron and Tin
C
Iron, Brass and Tin
D
Copper, Tin and Zinc
Correct Answer: Copper, Tin and Zinc
Modified gunmetal contains lead in addition to the zinc; it is typically composed of 86% copper, 9.5% tin, 2.5% lead, and 2% zinc. It is used for gears and bearings.