About Smiths

We are a world-class supplier of engineering raw materials. Our objective is to provide all our customers, from the small machine shop to the large multi-national corporation, a supply path that continuously delivers the highest levels of service, quality and value.

C103 Copper (CW008A)

Copper Alloy

C103 Copper Alloy

C103 copper offers the highest electrical conductivity of any commercial commercially pure copper on the market (greater than 100% IACS).

Commercially Pure

The metal has a copper content of 99.95%. Apart from high conductivity, C103 offers outstanding thermal conductivity and is not susceptible to hydrogen embrittlement when heated in a reduced atmosphere.


C103 (CW1008A) copper has excellent electrical conductivity and outstanding thermal conductivity. The metal is not susceptible to hydrogen embrittlement when heated in reduced atmospheres. C103 has the highest electrical conductivity of any commercially pure copper and benefits from excellent formability and joining qualities.

Typical Applications

Commercial applications for this engineering material include:

  • Electronics
  • Large generators
  • Rotor conductors
  • Transformers & motors
  • Switchgears
  • Vacuum engineering
  • Cables
  • Electrical instruments

We stock C103 in flats, round bar, plate, sheet, strip, wire, round tube, rectangular tube, square tube, hollow bar, square bar and hexagon bar.

Technical Assistance

Our knowledgeable staff and resident metallurgists will be pleased to assist you further on any technical topic. Smiths Metal Centres Limited also boasts an in-house UKAS Accredited Testing Laboratory which is unique within the multi-metal and plastic stockholding sector. We believe this underlines our total commitment to quality and our ethos of being the complete service provider.

Additional Info

A technical datasheet for C103 is available in PDF file format. To view and download, please click here.

We offer in-house processing options - for more information, please refer to our processing services.

Read our corporate brochure by clicking here.

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