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Bronze / Leaded Bronze

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Data Sheet
CuSn7Zn4Pb7 acc. to DIN EN 1982 (CC493K)
Material
Composition in %
Density around g/cm³
Mech, Properties
Tensile Strength rm (mpa)
Yield Point Rp 0.2 (mpa)
Elongation A (%)
Brinell Elongation (hb)
CuSn7 Zn4Pb7
Cu 81.0-85.0 Pb 5.0-8.0 Sn 6.0-8.0 Zn 2.0-5.0
8.8
Continuous Centrifugal
260
120
12
70
Characteristics:Medium-hard bearing material with good emergency running characteristics. Corrosion resistant even in seawater.
Use:Axle bearing bushes and coupling rod bearings, plain bearings shells for general mechanical engineering. For medium-loaded slideplates and strips. Normal and highly stressed plain bearing bushes when using shafts made of unhardened structural steels and surface hardened steel.
Remark:Very good machinability.
Comparable specification:C93200
CuSn12 acc. to DIN EN 1982 (CC483K)
Material
Composition in %
Density around g/cm³
Mech, Properties
Tensile Strength rm (mpa)
Yield Point Rp 0.2 (mpa)
Elongation A (%)
Brinell Elongation (hb)
CuSn12
Cu 85.0-88.5 Sn 11.0-13.0
8.8
Continuous Centrifugal
280 300
150
5 6
90
Characteristics:Material with good wear resistance. Seawater resistant.
Use:Couplings, under load moving spindle nuts, worm wheels and helical gears.
Remark:Moderate to heavy machinability.
Comparable specification:C90800
CuSn7Pb15 acc. to DIN EN 1982 (CC496K)
Material
Composition in %
Density around g/cm³
Mech, Properties
Tensile Strength rm (mpa)
Yield Point Rp 0.2 (mpa)
Elongation A (%)
Brinell Elongation (hb)
CuSn7 Pb15
Cu 74.0-80.0 Pb 13.0-17.0 Sn 6.0-8.0
9.1
Continuous Centrifugal
200
90
7 8
65
Characteristics:Soft bearing material with very good slip and emergency running characteristics, even in case of temporary lack of lubricant and water lubrication. Good corrosion resistance against sulfuric acid.
Use:Plain bearings with high surface pressures, where strong edge pressure can occur.
Remark:Very good machinability.
Comparable specification:C93800
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