Copper the MetalFact 10 of 12
Bronze is harder than pure iron and far more resistant to corrosion. Bronze is also harder than pure copper, so the Egyptians used it for weapons, armor, tools and, most famously, sculptures. It is particularly well suited for sculpture because it expands when heated (filling the nooks and crannies of a mold), then contracts as it cools so the sculpture is easy to remove from the mold.
