Aluminium Bronze

Aluminium Bronze is Copper-Aluminium alloy where Aluminium (5-11%) is the main alloying element added to Copper. Aluminium bronze alloy has higher strength and corrosion resistant compare to other bronze alloys. They form tough layer of Aluminium oxide on the surface which gives them higher corrosion resistance. It makes them preferable to other engineering materials and their applications includes Bushes (plain bearings), valve components, underwater fastenings, ship propellers and also used in engine components because of their low reactivity to sulphurous compounds and other combustion exhaust products.

material_aluminium
AlloyCompositionApplications
CuAl10Fe2-C
AB1
Cu 83,0 - 89,5
Al 8,5 - 10,5
Fe 1,5 - 3,5
Material with high strength and elongation. For High wear and shock loads. Resistant to seawater and corrosion. Mechanically stressed parts, pinions, plain bearing(bushing), bearings and bevel gears.
CuAl10Fe5Ni5-C
AB2
Cu 76,0 - 83,0
Al 8,5 - 10,5
Ni 4,0 - 6,0
Fe 4,0 - 5,5
High-strength building materials. Good castability. Seawater, cavitation, heat and corrosion resistant. Good wear resistance. Good weldability. Low susceptibility to cracking. Heavy-duty plain bearings (bushings). Worm and helical gears for high pressure conditions. Hot steam fittings, fittings for aggressive water, pump housings, gear and bevel gears, chain wheels, die holders, gear nuts, actuating levers, sealing flanges, cable clamps, sewing machine parts, gear parts, die holders.
CuAl10Ni3Fe2-CCu 80,0 - 86,0
Al 8,5 - 10,5
Ni 1,5 - 4,0
Fe 1,0 - 3,5
Building material with good strength properties, seawater resistant. Very good weldability. Hardly solderable. General mechanical engineering, pump construction, gear construction, food industry. Parts at risk of corrosion, valves for aggressive water, flanges for shipbuilding, slide bearings (Bushings).
CuAl11Fe6Ni6-CCu 72,0 - 82,5
Al 10,0 - 12,0
Ni 4,0 - 7,5
Fe 4,0 - 7,0
Same as CuAl10Fe5Ni5-C, but with increased cavitation and wear resistance. Chemical industry, shipbuilding, Same as CuAl10Fe5Ni5-C, but with increased requirements for cavitation and/or wear resistance. Chemical industry, shipbuilding, general mechanical engineering, apparatus construction, gear construction, precision mechanics, fittings industry, wire machine construction, hydraulics, switch construction. Suitable for plain bearings with very high impact loads as well as crank and toggle bearings with high load peaks.
CuAl10Fe2-CCu 83,0 - 89,5
Al 8,5 - 10,5
Fe 1,5 - 3,5
Material with high strength and elongation. Good wear resistance. Resistant to Industrial wastewater, acids and alkalis, seawater and corrosion. Mechanically stressed parts, pinions and bevel gears. General mechanical engineering, gear construction, vehicle construction, food industry, electric motor construction. Toothed and bevel gears, gear parts, carbon brush holders, Plain bearings (Bushings)
CuAl10Fe3Mn2Al 9 - 11,0
Fe 2,0 - 4,0
Mn 1,5 - 3,5
Cu Rest
High strength material. Even at higher temperatures. Good resistance to corrosion, seawater, scaling, erosion and cavitation. Parts in engine and gearbox construction. Bolts, high-strength bolts and nuts, shafts, spindles, worm and gear wheels, wheel rims, bearings and sliding elements like Plain bearings (Bushings).
CuAl10Ni5Fe4Al 8,5 - 11,0
Ni 4,0 - 6,0
Fe 3,0 - 5,0
Cu Rest
High strength even at higher temperatures. High fatigue strength even under corrosion stress. Good resistance to Seawater, scaling, erosion and cavitation. Very high wear resistance. Shafts, screws, wear parts, control parts for hydraulics, superheated steam fittings. Mechanically and chemically stressed parts in mechanical engineering, shipbuilding and mining. Parts for engine and gearbox construction. Bolts, high-strength bolts and nuts, shafts, spindles, worm and gear wheels, wheel rims, bearings and sliding elements like slide bearings (bushings).
CuAl11Fe6Ni6-CAl 10,5 - 12,5
Ni 5,0 - 7,0
Fe 5,0 - 7,0
Cu Rest
Like CuAl10Ni5Fe4 with particularly high strength, corrosion, wear and seawater resistance. Highly stressed bearing parts and worm gears. Internal parts for high-pressure valves in hydraulics.Plain bearings (Bushings) with very high shock loads. Crank and toggle lever bearings with high load peaks. Worm and helical gears, articulated jaws and pressure nuts. High load-bearing capacity with good wear resistance. Valves, valve seats, cover plates, sliding elements, wear parts, dies for non-cutting forming technology, superheated steam fittings.
CuAl7Si2 Al 6,3 - 7,6
Si 1,5 - 2,2
Cu Rest
High strength and high wear resistance. Good machinability. Good corrosion and seawater resistance. Plain bearings (Bushings) with high impact load. Valves, screws, gear parts. Suitable for manufacture of items of chemical plant, machine parts, tools and instruments.
CuAl9-CCu 88,0 - 92,0
Al 8,0 - 10,5
Resistance to corrosion, tarnishing and seawater. Good tensile strength. Fittings and castings for the chemical and food industries. Building and decorative component.