Nonferrous metals are used for structural building that requires less weight, more strength, nonmagnetic properties, higher melting points, or resistance to corrosion. They are also specified for electrical and electronic applications.
Aluminum is noted for its low density and corrosion resistance. Structural components made from aluminum and its alloys are important to the aviation and aerospace industry and other areas of transportation and structural materials.
Copper is a soft, malleable metal with very high thermal and electrical conductivity. It is used as a conductor of heat and electricity, a building material, and as component of various metal alloys.
Lead is also a soft, malleable metal and is identified as one of the heavy metals. Lead is used in building construction, lead-acid batteries, bullets, weights, and as radiation protection.
Zinc is the fourth most common metal in use, trailing only iron, aluminum, and copper.