High Purity OFHC Copper Powder from China
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.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• 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