What is brass?
Time：2016-06-02 18:50:22 Source：江西保太集團(tuán)-江西保太有色金屬集團(tuán)有限公司 View Rate：8396
Summary：
Brass is an alloy of copper and zinc. The simplest brass is a copper-zinc binary alloy called simple brass or plain brass. Brass with different mechanical properties can be obtained by changing the zinc content of the brass. 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.
In order to improve the performance of brass, brass with other alloying elements added to the one-piece brass is called special brass. Commonly used alloying elements are silicon, aluminum, tin, lead, manganese, iron and nickel. Adding aluminum to brass improves the yield strength and corrosion resistance of brass and slightly reduces plasticity. Brass containing less than 4% aluminum has good properties such as processing and casting. Adding 1% tin to brass can significantly improve the resistance of brass to seawater and atmospheric corrosion, hence the name "Naval Brass". Tin also improves the machinability of brass. The main purpose of brass lead is to improve machinability and improve wear resistance. Lead has little effect on the strength of brass. Manganese brass has good mechanical properties, thermal stability and corrosion resistance; adding aluminum to manganese brass can also improve its performance and obtain a smooth surface casting. Brass can be divided into two types of casting and press processing. Commonly used to process the chemical composition of brass.
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