Standard designation

Marking according to DIN EN 1982: CuSn11Pb2-C - GS
Material number according to DIN EN 1982: CC482K
Old mark based on DIN 1705 and DIN 1716: G-CuSn12Pb
Old material no.: 2.1061.01

Chemical composition in wt. %

Copper Cu 83,5-87,0
Nickel Ni < 2,0
Phosphorus P < 4,0
Lead Pb 0,7-2,5
Tin Sn 10,5-12,5
Aluminium Al < 0,01
Iron Fe < 0,20
Manganese Mn < 0,2
Sulphur S < 0,08
Antimony Sb < 0,2
Silicon Si < 0,01
Zinc Zn < 2,0

Physical properties

Density g/cm³ 8,7
Melting range °C 830-1000
Shrinkage value °C 1,5
Electr. conductivitiy at 20 °C MS/m 6,2
Thermal conductivity at 20 °C W/(m*K) 54
Linear expansion coefficient 10-6/K 18,5

Mechanical characteristics

Tensile strength Rm (MPa) 260
0,2 % - yield strength RP0,2 (MPa) 130
Ultimate tensile strength A (%) 5
Brinell hardness HB10 80

Technological properties

Elastic modulus GPa 90-110
Flexural fatique strength MPa 130
Shear strength MPa 195-210

Machining brazing-soldering and weldability

Machinability 2
Brazing medium
Gas welding poor
Inert gas welding medium

Comments

Bearing material with antifriction properties and wear resistance; corrosion and salt water resistant.

Notes on usage

Sleeve bearings with high load peaks (impact loads up to 60 MPa) highly stressed guide plates and ribs.