CW111A / CW112A / CW113A / Silver Bearing Copper

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Silver-bearing copper is a variation of ETP copper with a small addition of silver to the copper matrix to improve the materials resistance to softening. There are three grades of silver bearing copper available from Holme Dodsworth Class 2, 3 and 4, dependent on the silver content. The other main advantages of using silver bearing coppers are enhanced mechanical strengths, electrical conductivity and improved heat and corrosion resistance.

Silver bearing copper is typically used in applications such as commutator bars and segments in traction motors and various DC industrial motors. Holme Dodsworth are able to supply all three grades of silver-bearing copper in different sections according to our customer requirements.

Related Specifications

CW011A / Cu-Ag-2

CW012A / Cu-Ag-3

CW013A / Cu-Ag-3

IEC 60356

BS 1434 : 1985

JIS C 2801 : 1995

Chemical Composition - JIS C 2801:1995 

Cu-Ag-2

Copper

 

Silver           

99.9% min

 

0.03-0.05%

Cu-Ag-3

Copper

 

Silver

99.9% min

 

0.06-0.08%

Cu-Ag-4

Copper

 

Silver 

99.9% min
0.08-0.012%

Applications

Traditional uses for silver bearing copper include commutator bars, segments in traction motors, industrial DC motors, vacuum interrupters, stators & rotors of turbo / hydro and nuclear generators.

This technical information is given by Holme Dodsworth Metals without charge and the user shall employ such information at their own discretion and risk. For more detailed technical advice on temper selection, fabrication, joining, machining, physical and mechanical data please contact us as space does not permit the listing of every feature of the material.

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Holme Dodsworth Metals Limited.
59/69 Heaton Park Road.
Newcastle Upon Tyne NE6 1SQ
Registered in England. Company No. 00842702