Standard designation

Marking according to DIN EN 1982: CuSn10-C - GS
Material number according to DIN EN 1982: CC480K
Old mark based on DIN 1705 and DIN 1716: G-CuSn10
Old material no.: 2.1050.01

Chemical composition in wt. %

Copper Cu 88,0-90,0
Nickel Ni < 2,0
Phosphorus P < 0,2
Lead Pb < 1,0
Tin Sn 9,0-11,0
Aluminium Al < 0,01
Iron Fe < 0,2
Manganese Mn < 0,10
Sulphur S < 0,05
Antimony Sb < 0,2
Silicon Si < 0,02
Zinc Zn < 0,5

Physical properties

Density g/cm³ 8,7
Melting range °C 830-1020
Shrinkage value °C 1,5
Electr. conductivity at 20 °C MS/m 7,0
Thermal conductivity at 20 °C W/(m*K) 59
Linear expansion coefficient 10-6/K 18,5

Mechanical characteristics

Tensile strength Rm (MPa) 250
0,2 % - yield strength RP0,2 (MPa) 130
Ultimate tensile strength A (%) 18
Brinell hardness HB10 70

Technological properties

Elastic modulus GPa 90-110
Flexural fatique strength MPa 100
Shear strength MPa 200-215

Machining brazing-soldering and weldability

Machinability 3
Brazing good
Gas welding medium
Inert gas welding good


Structural material with good expansion, corrosion and salt water resistant.

Notes on usage

Valves and pump bodies, stators, impellers and paddle wheels for pumps and water turbines.

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