80 mesh or finer
Dust and powder of natural or synthetic precious or semi- precious stones: > Of diamonds > Synthetic: > Other: > 80 mesh or finer
Duty Rate (from China)
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
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)
Products classified under HTS 7105.10.00.30
CVD Synthetic Diamond Micron Powder 0.5-5 Microns
Chemical vapor deposition (CVD) synthetic diamond powder graded to 0.5-5 micron size (far finer than 80 mesh), used in high-precision polishing of sapphire windows and optical components. Falls under HTS 7105.10.0030 due to synthetic diamond composition and powder form exceeding 90% through 0.5 mm sieve. Ideal for aerospace and semiconductor lapping.
Nano Synthetic Diamond Powder 1-2 Nanometers Ultrafine
Detonation nano-synthetic diamond powder with 1-2 nm primary particles (aggregated to 80 mesh fines), used in metal matrix composites and lubricants. HTS 7105.10.0030 covers this as synthetic diamond powder passing 0.5 mm sieve per subheading note. Enables quantum dot and biomedical coatings.
Synthetic Diamond Polishing Powder 1000 Mesh Optical Grade
1000 mesh (10-20 micron) synthetic diamond polishing powder for optical lens and mirror finishing. Meets HTS 7105.10.0030 criteria as synthetic diamond powder 80 mesh or finer per Chapter 71 sieve definition. Removes sub-micron surface defects on glass and crystals.
Synthetic Diamond Powder 100 Mesh
Ultra-fine synthetic diamond powder with particle size of 100 mesh or finer (aperture <0.149 mm), produced via HPHT or CVD methods for industrial applications. Classified under HTS 7105.10.0030 as synthetic diamond powder where 90% or more passes through a 0.5 mm sieve and meets the 80 mesh or finer specification. Primarily used in precision lapping and polishing compounds.
HPHT Monocrystalline Synthetic Diamond Powder 200 Mesh
High-pressure high-temperature (HPHT) monocrystalline synthetic diamond powder at 200 mesh (74 micron or finer), suitable for wire sawing and dies. HTS 7105.10.0030 applies as synthetic diamond powder meeting subheading fineness criteria per Chapter 71 notes. Used in cutting tools for ferrous metals.
Polycrystalline Synthetic Diamond Powder 325 Mesh Lapping Grade
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.