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What is yellow brass?

different kinds of yellow brass

Brass is one of the earliest metals used by human beings, and humans have used copper for more than 3,000 years. The common brass in nature is copper sulfide ores, natural copper and copper oxide ores. The copper we use is often extracted from copper sulfide ores.

Pure brass has good electrical conductivity, thermal conductivity, and corrosion resistance, and is generally used to make cables and wires. Therefore, abandoned cables still have high recycling value. At present, the commonly used recycling method on the market is the mechanical separation method, which uses a cable recycling device to separate plastic and copper.

But because the cost of pure copper is too high, most items are made of brass. Let’s take a look at several types of brass.

Brief introduction of yellow brass

Brass is mainly an alloy of copper and zinc. It is called brass because of its beautiful yellow color. The difference in zinc content will also directly affect the characteristics and uses of the alloy.

30% zinc content

Yellow brass with a zinc content of about 30% is often used to make bullet shells, so it is also called bullet shell brass.

what is yellow brass
what is yellow brass

40% zinc content

Brass with a zinc content of 40% is the most commonly used yellow brass, but in order to change the characteristics of brass, nickel, aluminum, manganese, tin, silicon, lead, etc. are also added.

For example, aluminum can improve the hardness and corrosion resistance of copper, and reduce the plasticity. It is suitable for making condensation pipes and other corrosion-resistant parts.

Adding 1% tin to brass can improve the hardness and corrosion resistance of seawater, so it is also called naval brass and is often used to make propellers and marine thermal equipment.

Adding lead to brass can improve the cutting performance of brass. This easy-to-cut brass is often used to make watch parts.

Brass is also seen everywhere in our daily lives. For example, the condenser of an air conditioner radiator, the radiator in a car water tank, these are made of brass because of its good heat dissipation. The recycling value of copper is very high. We provide special air conditioner copper and aluminum separators to separate aluminum and copper. If you have this need, please contact us and we will be happy to make our own contribution to protecting the environment.


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