Composition of white metal, gun metal, brass, bronze metal

Metal	Composition	Uses
White Metal	Tin - 86% Antimony – 8.5% Cu – 4.5%	Bearing
Gun Metal	Cu - 88% Tin – 10% Zn – 2%	Pump, Liners, Valves
Brass	Cu - 70% Zn – 30%	General purpose Brass, bearing liners
Bronze	Cu – 90% Tin – 5% Small p or manganese