The values listed above represent reasonable approximations suitable for general engineering use. Due to commercial variations in composition and to manufacturing limitations, they should not be used for specification purposes. See applicable ASTM specification references.

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C10100 OXYGEN-FREE COPPER is produced by the direct conversion of selected refined cathodes under carefully controlled conditions to prevent any contamination of the pure oxygen-free metal during processing. C10100 Oxygen-Free Electronic Copper, also known as OFE, is a 99.99% pure copper with 0.0005% oxygen content. C10100 achieves a minimum 101% IACS conductivity rating. C10100 OFE has High ductility, high electrical and thermal conductivity and low volatility under high vacuum. C10100 Copper Conforms to ASTM B187 round bar and ASTM B152 for plate. 

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C10100 Oxygen-Free Copper is used for Transistor Component Bases, High Resistance-Ratio Cryogenic Shunts, Bus Conductors, Wave Guides, Hollow Conductors, Anodes for Vacuum Tubes, Coaxial Cable, Coaxial Tube, Klystrons, Microwave Tubes, Bus Bars, Lead-in Wire, Vacuum Seals, Conductors, Glass-to-Metal Seals