EN 12163 Grade CuSn8P R390 – High-Performance Copper Bronze for Precision Bearings

Material CuSn8P, mat. No. CW459K, is comparable to the DIN-make CuSn8 (2.1030). Also comparable to this DIN-make is the EN-make CuSn8 (CW453K). The alloyed by phosphor make (0,2 to 0,4%) is used for friction bearings only.

Properties

General

Property	Temperature	Value
Density	20.0 °C	8.8 g/cm³

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	23.0 °C	96 - 120 GPa	Typical for Cast Copper Bronze
Elongation	20.0 °C	45 %
Elongation A10	20.0 °C	40 %
Elongation A100	20.0 °C	35 %
Elongation A11.3	20.0 °C	40 %
Poisson's ratio	23.0 °C	0.34 [-]	Typical for Cast Copper Bronze
Tensile strength	20.0 °C	390 MPa
Yield strength Rp0.2	20.0 °C	260 - 280 MPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	23.0 °C	1.6E-5 - 1.9E-5 1/K	Typical for Cast Copper Bronze
Melting point		760 - 1060 °C	Typical for Cast Copper Bronze
Specific heat capacity	23.0 °C	376 - 440 J/(kg·K)	Typical for Cast Copper Bronze
Thermal conductivity	23.0 °C	12 - 81 W/(m·K)	Typical for Cast Copper Bronze

Chemical properties

Property	Value
Iron	0.1 %
Lead	0.05 %
Nickel	0.3 %
Phosphorus	0.2 - 0.4 %
Tin	7.5 - 8.5 %
Zinc	0.3 %

EN 10132-4 Grade 125Cr2 – Soft Annealed Steel with Optional Skin Pass (+A/+A+LC) EN 12163 Grade CuCo2Be F00: High-Performance Low-Alloy Copper Alloy

Metal