Equivalent Specifications
BS EN 12420 1999 CW106C
BS EN 12165 1998 CW 106C
BS EN 12163 2011 CW 106C
DIN 17665 2.1293
DIN 17672 2.1293
DIN 44759
ASTM B C18150
RWMA Class 11
MIL 19311
NFA 82100
Key Features
A high copper alloy with small additions
of chromium and zirconium, that can be
heat treated by quench and precipitation
hardening.The addition of Zirconium helps prevent electrode sticking during the spot welding of galvanised steel.
Typical Uses
A high copper alloy with extremely good
electrical and heat conductivity that is
strengthened by heat treatment.
Electrical
The main applications are for electrical connectors,switch gear and circuit breakers which require higher mechanical properties.It is also used in generators for commutor bars and end rings for electric motors.
Mechanical/Electrical
Used for welding wheels,spotwelding electrodes.seam welding wheels and tips.Electrode holders and arms; oxygen jet tips. Moulds inserts for non ferrous casting moulds
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CW106C
A European copper alloy forging standard for CuCr1Zr CW106C which is a high copper alloy containing a small amount of chromium & zirconium that improve its mechanical performance. Copper on its
own has outstanding electrical and heat transfer properties but is soft and ductile. However
the small additions of these elements followed by a suitable heat treatment significantly increases strength and hardness while retaining high conductivity values. The alloy can also be manufactured to the following specifications EN 12167/12165/12163
CW106C, BS 2872/2874 CC102 and DIN 17672/17673/17678-1 W Nr 2.1293.
Description |
Copper Chromium Zirconium |
Nominal Composition |
CuCr1Zr |
Alloy Type |
Wrought |
Typical Mechanical Properties
Tensile Strength (N/mm²) |
380 |
Proof/Yield Strength (N/mm²) |
300 |
Elongation (%) |
15 |
Hardness Brinell |
130 |
Impact Izod J20°C |
|
Typical Physical Properties
Density g/cm³ |
8.9 |
Melting Temperature Range °C |
1070-1080 |
Thermal Conductivity W/mK |
320 |
Electrical Resistivity μΩ.m15°C |
2.15 |
Coefficient of Thermal Expansion 0-250°C |
16.45 |
Relative Magnetic Permeability |
< 1.01 |
Coefficient of Friction |
|