High Purity OFHC Copper Powder
Oxygen-Free High Conductivity (OFHC) copper powder with <5 ppm oxygen content and non-lamellar spherical morphology. Used in high-performance electronics and superconductors. HTS 7406.10.00.00 for pure copper powders of non-lamellar structure.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If supplied as >99.99% pure unwrought copper
Oxygen-free high conductivity copper bars/wire classified as refined copper.
If dendritic electrolytic powder marketed as OFHC
Non-spherical electrolytic powders may be lamellar depending on processing.
If incorporated into electrical powder metallurgy parts
Electrical components made from copper powder classified by electrical function.
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Import Tips & Compliance
• Provide inert gas fusion analysis certificate verifying oxygen <10 ppm
• OFHC powders require hermetic sealed packaging; declare vacuum level maintained
• Electrical conductivity certification (>101% IACS) supports high purity claims
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