Brass brass is an alloy of copper and zinc, named after its yellow color. Brass has good mechanical properties and wear resistance and can be used to make precision instruments, parts of ships, shells of guns, and so on. Brass knocks sounds nicely, so instruments such as gongs, gongs, bells, and horns are made of brass.
Navigation brass copper and zinc, tin alloys, resistant to seawater erosion, can be used to make ship parts, balancers.
Bronze, copper and tin alloys are called bronzes and are named after the color green. Bronze generally has good corrosion resistance, wear resistance, castability, and excellent mechanical properties. It is used to manufacture precision bearings, high-pressure bearings, mechanical components resistant to seawater corrosion on ships, as well as various plates, pipes, rods, etc. Bronze also has an anomalous characteristic - "cold shrinkage and cold expansion". It is used to cast a statue. After cooling, it expands and can make the eyebrows clearer.
Phosphor bronze copper and tin, phosphorus alloys, hard, can be made of springs.
Cupronickel White copper is an alloy of copper and nickel. Its color is the same as that of silver. It is shiny silver and does not easily rust. It is commonly used in the manufacture of electrical appliances, instruments and accessories.
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