Oxygen-Free High-Conductivity Copper Bar from United States
An OFHC C102 copper bar for RF components and cryogenics, with less than 5 ppm oxygen. It is classified under tariff item 7407.10.90 as an 'other' bar of refined copper, given its high purity and solid cross-section. The product's superior purity prevents hydrogen embrittlement in precision applications.
Duty Rate — United States → Canada
0%
Import Tips
• Provide a certificate of analysis showing the oxygen content and copper purity to support refined copper classification
• Confirm the bar is solid and not hollow to avoid reclassification
• Verify the product is 'unworked' as defined in the chapter notes if it has not been further processed