A wire, a rod, a bar made of bronze
Bronze is an alloy on a copper basis. The main alloying component is tin. Its composition is composed of aluminium additives, beryllium and other elements such as phosphorus, aluminium, zinc, plumb. The exceptions are copper + zinc (brass) alloy and copper + nickel alloys. Aluminium bronze, brass (Cu+Zn) and constantan (Cu+Ni) are very popular but they do not relate to bronzes.
Tin is the second component of alloy; copper is the first. The third component can be zinc, aluminium, arsenic or other elements. This alloy is the most utilizable. Human smelts it since Ancient Egypt times. It considered having been defense material for a very long time. All the way up until 19th century, there were founded guns out of it. It consists of tin and copper (usually, copper is in greater number). This metal has become one of the first metals people had mastered. It has more merits (for example hardness, workability, strength) in comparison with copper. An invention of bronze has opened up many various opportunities for people which they use until now.
Properties of bronze
Tin bronze is badly treated by pressure, grinding, cutting. It is not inferior to other metals by casting properties. This alloy possesses high corrosive resistance and antifriction properties. It can be used for details of movers or in chemical industry for manufacturing fittings. Plumb and phosphorus can improve antifriction properties. Tin bronzes can be also alloyed with zinc, nickel, aluminium, arsenic. Zinc additive up to % does not change bronze characteristic. However, this makes it cheaper. Bronze alloy with zinc masteralloys is called «admiralty». It is well protected from corrosion in seawater.
Brief grade guide
|Identification||Field of utilization||GOST, TC|
|CuBe2||Springs, springy essential components, wear-resistant fitting of all types, non-sparking tools.||18 175−78|
|CuSi3Mn1||Industrial usage: manufacture of springs, details of chemical industry, shipbuilding.||18 175−78|
|CuCr, CuCr1||Industrial usage: electrical components, electrode for welding, equipment of welding machines.||18 175−78|
|CuCr1Zn||Electrodes of resistance spot welding and seam welding of carbon steel.||1628−78|
|CuAl9Mn2||Industrial usage: wear-resistant components, screws, trucks, fitting of hydraulic installation.||18 175−78|
|2.1020CuSn6||Bushes, springs, bearing bushes.||5017−74|
|CuAl10Fe1||Industrial usage: aircraft engineering, mechanical engineering.||18 175−78|
|CuBe2NiTi||Springs, springy essential components, wear-resistant fitting of all types, non-sparking tools.||18 175−78|
|CuNiBeTi||Details of butt seam welding machines, electrodes for welding of stainless steel and heat-resisting alloys.||48 -21−92|
|CuCd1||Motor commutator, details for resistance welders and other details.||18 175−78|
|CuAl9Fe4Ni4Mn1||Industrial usage: aircraft engineering, mechanical engineering.||18 175−78|
|CuAl10Fe3Mn2||Manufacture of details for cryogenic equipment, details of chemical tools.||18 175−78|
|Industrial usage: bearing bushes, antifriction details, fitting.||1628−78|
|CuSn3Zn7Pb5Ni1||Details that are exploited in oil, fresh water, steam atmosphere.||613−79|
|CuSnZnPb||Industrial usage: for shims and bushings for cars, trucks.||5017−74|
|CuAl11Fe6Ni6||Industrial usage: antifriction details, fitting.||1628|
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