BrassBrass is a alloy of copper and zinc.. If it is only brass and zinc made of brass is called ordinary brass. Huang Tongchang was used in the manufacture of valves, pipes, air conditioning and internal and external connection pipe and radiator, etc..A variety of alloys consisting of more than two elements is called special brass.. Such as lead, tin, manganese, nickel, iron, silicon copper alloy. Special brass is called special brass, it has high strength, high hardness, strong chemical corrosion resistance. There are also machining of mechanical performance is also more prominent. Brass has a strong wear resistance. Seamless copper tube made of brass, soft and wear-resistant, strong. Brass seamless tube can be used for heat exchangers and condenser, cryogenic pipeline, submarine transport pipe. Manufacturing material, bar, bar, pipe, casting parts, etc.. Copper bearing in 68% ~ 62%, plastic, manufacturing pressure equipment, etc..According to the different types of brass contained in the alloy, brass is divided into ordinary brass and special brass two kinds. Brass known as deformed brass for pressure machining. Brass with zinc as the main element of the copper alloy, with beautiful yellow, collectively referred to brass. Copper zinc two alloy said ordinary brass or simple brass. Three yuan more than brass said special brass or brass. Zinc containing low in 36% of the brass alloy by solid solution composition, with excellent cold workability, such as those containing 30% zinc brass is often used for making shell, commonly known as bombShell brass or seven three brass. The brass alloy containing zinc content between 36 and 42% is composed of and solid solution, and the most commonly used is six four brass with zinc 40%. In order to improve the performance of ordinary brass, often add other elements, such as aluminum, nickel, manganese, tin, silicon, lead, etc.. Aluminum can improve the brass strength, hardness and corrosion resistance, but the ductility decreases, suitable for seagoing vessel condensing tube and other corrosion resistant parts. Tin can improve the brass strength and corrosion resistance of the sea, so that the Navy brass, thermal equipment and propeller for ship. Lead can improve the cutting performance of brass, this easy cutting brass commonly used as clock parts. Brass casting commonly used to produce valve and pipe fittings, etc..

BronzeBronze is the earliest alloy used in our country, it has been three thousand years of history.Bronze refers to the original copper tin alloy, after except for brass, copper nickel alloy, copper alloy are called bronze, and often in front of the bronze name dubbed the first main add elements to the name. Tin bronze casting properties, friction reduction and good mechanical performance, suitable for manufacturing bearings, worm gears, gears, etc.. Lead bronze is a widely used bearing material for modern engine and grinder.. High strength aluminum bronze, wear resistance and good corrosion resistance, used for propeller gear, shaft sleeve, ship high load casting. The elastic limit of phosphor bronze is high, good conductivity is good, it is suitable for manufacturing precision spring and electric contact element, beryllium bronze is also used in the production of coal, oil depot and so on the use of no spark tool. Beryllium copper is a supersaturated solid solution of copper base alloy, mechanical properties, physical properties, chemical properties and corrosion resistant performance is good; powder metallurgy for tungsten steel, high carbon steel, high temperature super hard alloy production mould electrical erosion, due to the common electrode loss, slow speed, tungsten copper is ideal material. The flexural strength is not less than 667Mpa.Pure copperHigh quality copper with high purity, fine microstructure, very low oxygen content. No porosity, no porosity, loose, excellent conductivity, suitable for electric etching mold, the heat treatment process, the electrode is not directional, suitable for fine play, fine.