Brass is composed of copper and zinc alloy. If only composed of copper, zinc on the composition of the brass called ordinary brass. If it is made up of two or more elements of a variety of special alloy called brass. As the lead, tin, manganese, nickel, lead, iron, silicon, copper alloys. Brass has strong wear resistance. Special brass special brass called it high strength, hardness, resistance to chemical corrosion. There machining mechanical properties are more prominent. Pull from the brass into a seamless copper tube, soft, strong wear resistance. Seamless brass heat exchangers and condensers can be used for low temperature piping, sea transport tube. Manufacture of sheet, strip, bar, pipe, casting parts. Copper-containing In the 62% ~ 68%, plasticity Qiang, manufacturing pressure equipment, etc.. If you continue to increase zinc mass fraction, tensile strength decreased, no use value code with "H + number" indicates, H represents brass numerals mass fraction of copper. Expressed as H68 copper content of 68%, 32% zinc, brass, cast brass in the code before the "Z" words, such as ZH62 Zcuzn38 expressed as zinc content of 38%, the balance being copper cast brass. H90, H80 single-phase, golden yellow, so there is golden a total of termed, called the plating layer, ornaments, medals and so on. H68, H59 belongs phase brass, widely used in electrical appliances on the structural parts, such as bolts, nuts, washers, springs, etc.. General circumstances, cold deformation processing by using single phase brass hot-deformation processing exists with duplex brass. Shanghai Tian Rui Metal Materials Co., Ltd. (according to user needs, can be produced by drawing process) Marketing Department Miss Li T :021-63066307/56062869 F :021-56060561 QQ: 441594627/1650507469 Address: Lingshi Road, Zhabei District, Shanghai, No. 891 Email: coco_trcopper@163.com Website: www.tr-copper.com lwtrjs20130524 

keywords: Special brass, mass fraction, the amount of zinc, tensile strength, machinability,