Alloys

Name of Alloy	Composition	Uses
Brass	copper with up to 50% zinc	inexpensive jewelry; hose nozzles and couplings; piping; stamping dies
Coin metal	copper with up to 12% tin	coins and medals; heavy gears; electrical hardware
Duralumn	copper: 75% nickel: 25%	United States coins-
Nichrome	aluminum: 95% copper: 4% magnesium: 0.5% manganese: < 1%	aircraft, boats, railroad cars, and machinery because of its high strength and resistance to corrosion.
Phosphor bronze	bronze with a small amount of phosphorous	springs, electrical springs, boat propellers
Solder	lead: 50%, tin: 50% or tin: 98%, silver: 2%	joining two metals to each other joining copper pipes
Sterling silver	silver: 92.5% copper: 7.5%	jewelry, art objects, flatware
Type metal	lead: 75 - 95% antimony: 2- 18% tin: trace	used to make type for printing because it expands as it cools