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Brass is an alloy made of copper and zinc. Brass, which is made of copper and zinc, is called ordinary brass. Brass is often used to make valves, water pipes, air conditioners and other internal and external machine connection and radiators.

If it is composed of more than two kinds of elements of a variety of alloys called special Brass. Copper alloys consisting of lead, tin, manganese, nickel, iron and silicon. Special brass is also called Special brass, it has high strength, large hardness, strong chemical corrosion resistance. The mechanical properties of the cutting process are also prominent. Brass has a strong abrasion resistance. The seamless copper tube, which is drawn by brass, is of high quality, soft and abrasion resistance. Brass seamless pipe can be used for heat exchangers and condensers, low-temperature pipelines, submarine transport pipe. Making sheet, strip, bar, pipe, casting parts, etc. Copper in 62%~68%, plastic strong, manufacturing pressure-resistant equipment.

According to the different types of alloy elements contained in brass, brass is divided into common brass and special brass. The pressure machined brass is called deformed brass. Brass with zinc as the main addition of elements of copper alloy, with beautiful yellow, collectively known as brass. Copper and zinc two-yuan alloy called ordinary brass or simple brass. More than ternary brass is called special brass or is called complex brass. The brass alloy with a zinc lower than 36% is composed of solid solution and has good cold working performance, such as brass with zinc 30% is used to make shell casings, commonly known as bombs

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