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C10100 Oxygen-Free Copper

CDA 101, CA10100, ASTM B187, ASTM B152, ASTM F68, ASTM B170

Mechanical values above are typical for 1" solid diameter Hard (35%) Temper

*Hardness conversions are approximate

**Test values are nominal approximations and depend on specimen size and orientation

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

C10100 Oxygen-Free Copper
ofhc copper

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What's Driving
Metal Prices

Factors creating the on-going surge in copper prices and base metal prices.

The U.S. imposed a 50% Section 232 tariff on the copper content of semi-finished and derivative copper products, effective August 1, 2025. These tariffs aim to bolster domestic production but create complexities for businesses in pricing, sourcing, and compliance, affecting global copper markets. 

In addition copper costs are soaring due to massive demand from the energy transition (EVs, renewables, grid) and AI data centers colliding with slow mine supply growth, production disruptions (labor, technical issues), aging mines, and government policies like tariffs, creating a structural supply deficit. 

Tin prices jumped to a record level due to a severe, ongoing global supply squeeze from mine disruptions (DRC, Myanmar, Indonesia) and increasing demand driven by its critical role in electronics (solder), green energy tech, and packaging, creating a significant market deficit and attracting speculative investment. Supply chain issues, including export permit delays and political instability in key producing regions, combined with growing recognition of tin's necessity for the energy transition, fueled a rally to multi-year highs in late 2025 and early 2026. 

Nickel prices are rising due to anticipated supply cuts from major producer Indonesia, tighter quotas, increased demand from stainless steel and EV battery sectors (despite some LFP shifts), speculative buying, and broader market strength in metals, with investors reacting to policy signals and potential disruptions.

metals@anchorbronze.com

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