Copper alloys are so widely used, many in complex applications, that there are over 370 commercial copper and copper alloy grades. The Copper family includes coppers, high-copper alloys, brasses, leaded brasses, bronzes, aluminum bronzes, silicon bronzes, copper nickels, and nickel silvers.
Copper alloys provide good thermal and electrical conductivity, corrosion resistance, ease of forming, ease of joining, and colour, but most have relatively low strength-to-weight ratios and low strengths at elevated temperatures.