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Properties and uses of copper, brass, phosphor bronze, and white copper


The properties and uses of copper:
Copper is a relatively pure copper. It is generally considered to be pure copper. It has good electrical conductivity and plasticity, but its strength and hardness are poor.

Pure copper is a purple-red metal, commonly known as "copper", "red copper" or "red copper." Pure copper is malleable. For example, pure copper of the size of a drop of water can be pulled up to two kilometers of filaments, or calendered into almost transparent foil larger than the bed. The nature of pure copper is very good in electrical conductivity, second only to silver in all metals. Pure copper is much more widely used than pure iron. Every year, 50% of copper is electrolytically purified to pure copper for use in the electrical industry.

Brass properties and uses:
Brass is a kind of copper containing other alloy components. The price is cheaper than that of copper. The conductivity and plasticity are lower than that of copper, but the strength and hardness are higher.

Brass is an alloy of copper and zinc. The simplest brass is a copper-zinc binary alloy called simple brass or plain brass, which changes the zinc content of the brass to give brass with different mechanical properties. The higher the content of zinc in brass, the higher the strength and the lower the plasticity. The brass used in the industry does not contain more than 45% zinc. If the zinc content is high, brittleness will occur and the properties of the alloy will deteriorate. Adding 1% tin to brass can significantly improve the resistance of brass to seawater and atmospheric corrosion, hence the name "Naval Brass". Tin can improve the cutting performance of brass. Lead brass is what we usually call the easy-to-cut copper. The main purpose of lead addition is to improve machinability and improve wear resistance, and lead has little effect on the strength of brass. Engraving copper is also a type of lead brass. Most brass has good color, processability, and ductility, and is easy to plate or apply.

The properties and uses of white copper:
A copper alloy with nickel as the main additive element. The copper-nickel binary alloy is called ordinary white copper; the white copper alloy with elements such as manganese, iron, zinc and aluminum is called complex white copper. Industrial white copper is divided into two types: structural white copper and electrical white copper. Structural white copper is characterized by good mechanical properties and corrosion resistance, and beautiful color. This white copper is widely used in the manufacture of precision machinery, chemical machinery and marine components. Electrical white copper generally has good thermoelectric properties. Manganin, copper, and copper are manganese white copper with different manganese content. They are used in the manufacture of precision electrical instruments, varistor, precision resistors, strain gauges, thermocouples, etc.

Bronze properties and uses:

Originally referred to as copper-tin alloy, copper alloys other than brass and white copper are called bronze, and often the name of the first major additive element in front of the bronze name. Tin bronze has good casting performance, anti-friction performance and good mechanical properties, and is suitable for manufacturing bearings, worm gears, gears, etc. Lead bronze is a widely used bearing material for modern engines and grinding machines. Aluminum bronze has high strength, good wear resistance and corrosion resistance, and is used for casting high-load gears, bushings, marine propellers, etc. Beryllium bronze and phosphor bronze have high elastic limit and good electrical conductivity, and are suitable for manufacturing precision springs and electrical contact components. Beryllium bronze is also used to manufacture non-sparking tools for use in coal mines and oil depots.



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