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Bronze material

produkty z brązuBronze is a material known for thousands of years. Thanks to its durability and appearance, it was appreciated in antiquity. It has long been used for the production of jewelry. Bronze, or more precisely – bronzes – are called alloys of copper with tin and other metals. The copper content varies depending on the grade, but always oscillates between 80% and 90% of the alloy. The material owes its name to the Italian city of Brindisi. It was ancient Brundisium that specialized in ore processing. Bronze is an easily machined material and has high resistance to corrosion and high temperatures. It can be hardened. It is electrochemically neutral. It is used in many industries.

Sale of bronze

We sell bronzes that are perfect for plastic processing. Among them are: beryllium bronze, tin and aluminum bronze (BA1032). Beryllium bronze contains up to more than 2% beryllium. There may also be other additives in the alloy – such as nickel, cobalt and titanium. Due to its properties, it is a raw material used for the production of springs and heat-resistant details. It is also used to produce precision chemical apparatus. Tin and aluminum bronzes are used in heavy industry and construction. They are used to produce, among others, bronze bars. BA1032 aluminum bronze is also used in the chemical industry. It is also very popular in shipbuilding. Due to its resistance to the destructive effects of salt water, it is used to make elements working in the depths of the sea. It is also a raw material used for the production of screws, shafts and bearings. Tin bronze is most often used for the manufacture of items and components that must maintain resistance to strong friction. Especially in the version with a large admixture of lead (bronze RG7), it does its job best. Other varieties used for these purposes are alloys marked B101 (tin-phosphorus bronze) and CuSn 12 (tin bronze).


Bronze CUSn12 has good sliding properties. In addition, like other tin bronzes, it has high elasticity and resistance to corrosion and abrasion. It shows durability even at high speeds. First of all, it is used for the production of gears, bearings and worms. CUSn12 is a self-lubricating bronze.

Sn 10.5 – 13%
Pb 0.6 – 1.0%
Zn 5.0 – 6.0%
Ni max 2.0%
P max. 0.4%
Others total combined
Material resistant to abrasion and corrosion, good sliding properties also at high speeds, used for gears and worm wheels.
Tensile strength 300 N/mm2,
Thardness min. 90 HB.Products in the offer: bars, pipes, shafts, sleeves, flats and squares.

Bronze Rg7

Tin-zinc-lead Rg7 bronze (CuSn7ZnPb) is one of the most popular bronze alloys. It is resistant to corrosion, sea water and abrasion, which is why it is also called sliding bronze. It is used to produce bearings in the automotive industry, as well as bushings. It is recommended for places where there is a lack of proper lubrication. It is used in the chemical industry and in construction.

Sn 5.6 – 8.0%
Pb 5.0 – 7.0%
Zn 3.0 – 5.0%
Nimax 2.0% < br /> Pmax. 0.05%
Others total combined
A material that is easy to machine, used for parts that require corrosion and abrasion resistance, e.g. bearings for the tool industry and the automotive industry
Tensile strength 270 N/mm2,
Hardness min. 70 HB.Products in the offer: bars, pipes, shafts, sleeves, flats and squares.

Tin bronzes

CuSn2 B2 bolts, flexible hoses
CuSn4 B4 screws, manometric springs, elements of control and measuring instruments, plug-in connections
CuSn6 B6 springs, membranes, paper screens, manometer tubes, elements of control and measuring devices
CuSn8 B8
CuSn4Pb4Zn3 B443 sliding elements

BA1032 aluminum bronze

BA1032 aluminum bronze is highly resistant to corrosion, abrasion, impact and static loads. Thanks to these properties, they are used in the chemical, communication, shipbuilding and aviation industries. It is used to produce elements working in sea water, heavily loaded machine and engine parts, sliding contacts, bearing parts, sieves, screws, fittings and coins.

CuAl5As BA5 elements working in sea water, elements of chemical apparatus
CuAI8 BA8 elements of chemical apparatus
CuAl8Fe3 BA83 tube bottoms of heat exchangers, elements of chemical apparatus
CuAl10Fe3Mn2 BA1032 elements of control and measurement and chemical apparatus, shafts, screws, elements exposed to abrasion
CuAl10Ni5Fe4 BA1054 tube bottoms of heat exchangers, shafts, bolts, elements exposed to abrasion, elements of hydraulic devices, valve seats, gears

Special browns

CuSi1 BK1 screws, especially in a marine environment
CuSi3Mn1 BK31 elements of welded structures
CuBe1.7 BB1.7 springs, spring and wear parts, non-sparking tools
CuBe2 BB2
CuBe2Pb BB21
CuCo2Be BC2
CuNi2Si BN2 screws, hardware

Cast bronzes

tin CuSn10
o -(G-CuSn10)
v- (CuSn10)
B10 heavily loaded machine parts such as bearings, bushings and drives as well as steam and water equipment; resistant to some acids
tin phosphor CuSn10P
B101 high-load, high-speed, poorly lubricated and corrosion-prone bearings, machine parts and chemical fittings
tin-zinc CuSn10Zn2
o -(G-CuSn10Zn)
v- (CuSn10Zn2)
B102 high-stress and corrosion-prone machine parts in the shipbuilding and paper industry
tin-lead CuSn10Pb10
o -(G-CuPb10Sn)
v- (CuPb10Sn10)
B1010 bearings and friction parts of machines operating at high pressures and speeds
o -(G-CuPb15Sn)
v- (CuPb15Sn9)
B815 sliding bearings operating under considerable pressure, sealing rings
o -(G-CuPb20Sn)
v- (CuPb20Sn5)
B520 bearings and machine parts exposed to abrasion at high speeds and low pressures
tin-zinc-lead CuSn5Zn5Pb5
o -(G-CuSn5ZnPb)
v- (CuSn5PbZn5)
B555 machine parts, accessories, apparatus for vehicles, engines and tractors subject to water corrosion, abrasion and pressure up to 2.5 MPa
CuSn4Zn7Pb6 B476 machine parts, bushings and bearings operating under static loads and normal temperatures; water fittings resistant to pressure up to 2.5 MPa and steam fittings up to 0.7 MPa
aluminum-iron CuAl9Fe3
o -(G-CuAI10Fe)
v- (CuAl10Fe3)
BA93 heavily loaded parts of machines, engines and accessories and apparatus exposed to corrosion and abrasion with simultaneous mechanical load, used in the communication, shipbuilding, aviation, chemical industries, etc
aluminium iron manganese CuAl10Fe3Mn2 BA1032
aluminum-iron-nickel CuAI10Fe4Ni4
o -(G-CuAI10Ni)
v- (CuAi10Fe5Ni5)
silicon zinc manganese CuSi3Zn3Mn1 BK331 parts of machines and accessories (bearings, drive elements, pumps) exposed to corrosion, variable loads, poor lubrication
NAME DIN 1705 Material no. DIN EN 1982 Material no.
Continuous GC-CuSn 12 2.1052.04 CuSn12-C-GC CC483K-GC
GC-CuSn12Ni 2.1060.04 CuSn12Ni2-C-GC CC484K-GC
GC-CuSn12Pb 2.1061.04 CuSn11Pb2C-GC CC482K-GC
Centrifugal GZ-CuSn 12 2.1052.03 CuSn12-C-GZ CC483K-GZ
GZ-CuSn12Ni 2.1052.04 CuSn12Ni2-C-GZ CC484K-GC
GZ-CuSn12Pb 2.1061.03 CuSn11Pb2C-GZ CC482K-GZ
sand casting GS-CuSn 12 2.1052.01 CuSn12-C-GS CC483K-GS
GS-CuSn12Ni 2.1060.01 CuSn12Ni2-C-GS CC484K-GS
GS-CuSn12Pb 2.1061.01 CuSn11Pb2-C-GS CC482K-GS

Bronze B101

Bronze B101 (CuSn10P) is a specialized tin-phosphor bronze with high resistance to mechanical loads, abrasion, crushing, corrosion and high temperatures. It is used in the production of chemical fittings and parts of devices and machines that are exposed to corrosion, heavy loads and rotation, e.g. bearings. It is distinguished by its castability and machinability. This alloy is also called phosphor bronze. It contains about 1% of red phosphorus. We offer e.g. bars, shafts, sleeves, flat bars and tubes made of B101 bronze. Please contact us for details of the offer.

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