Polycrystalline Synthetic Diamond Powder 325 Mesh Lapping Grade from China
Polycrystalline synthetic diamond powder at 325 mesh (44 micron), optimized for lapping carbide and ceramic substrates. Classifies in 7105.10.0030 as it meets synthetic diamond powder definition with 80 mesh or finer particles per sieve note. Key for hard disk drive manufacturing.
Duty Rate — China → United States
37.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 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
• Batch testing for friability index recommended; high friability may trigger abrasion testing by CBP
• Package in nitrogen-flushed containers; oxidation proof required for fines storage