In grains, or ground, pulverized or refined
Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide: > Artificial corundum, whether or not chemically defined: > In grains, or ground, pulverized or refined
Duty Rate (from China)
Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 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(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Subheadings
Products classified under HTS 2818.10.20
Brown Fused Alumina Grit 24 Mesh
Brown fused alumina grit in 24 mesh size, produced by fusing calcined alumina in electric arc furnaces, is a chemically defined artificial corundum used as an abrasive. It falls under HTS 2818.10.20 due to its granular form, ground and refined for blasting and grinding applications. This high-toughness material contains 95% aluminum oxide.
White Fused Alumina Powder 320 Grit
White fused alumina powder at 320 grit fineness, made from high-purity alumina, serves as a precision abrasive and polishing agent. Classified in HTS 2818.10.20 as refined, pulverized artificial corundum, chemically defined with >99% Al2O3 content. Ideal for metallurgical polishing and high-end coatings.
Tabular Alumina Granules 3-6mm
Tabular alumina granules sized 3-6mm, produced by sintering calcined alumina into dense, alpha-phase crystals, used in refractories. This artificial corundum in grain form, ground and refined, qualifies under HTS 2818.10.20 as chemically defined aluminum oxide. Offers superior thermal shock resistance.
Reactive Alumina Fine Powder FCPA-12
Reactive alumina fine powder (FCPA-12 grade) with high surface area for ceramic and catalyst production, in pulverized form. As refined artificial corundum, chemically defined per Chapter 28, it imports under HTS 2818.10.20. Sourced from low-soda calcined alumina.
Black Silicon Carbide Grain 16/30 Mesh
Wait, correction: Black silicon carbide is 2849.20; for 2818.10.20 - Pink Fused Alumina 60 Grit with chromium oxide. Pink fused alumina 60 grit, alloyed with Cr2O3 for enhanced hardness, used in precision grinding. Refined grains of artificial corundum classify under HTS 2818.10.20 as chemically defined.
Calcined Alumina A100 Grade Powder
Calcined alumina A100 grade, super fine powder for LED phosphors and ceramics, pulverized and refined. Artificial corundum, aluminum oxide chemically defined, under HTS 2818.10.20. Low soda content <0.3%.
Bauxite Calcined Fines 0-1mm
Note: Calcined bauxite can be artificial corundum if high purity; High-grade calcined bauxite fines 0-1mm for refractory aggregate, meeting artificial corundum definition via alumina fusion. Ground form under HTS 2818.10.20.
Alpha Alumina Coarse Grain 8-14 Mesh
Alpha alumina coarse grain 8-14 mesh for proppants in fracking, refined artificial corundum. Chemically defined Al2O3 >98%, grains under HTS 2818.10.20.
Electrofused Alumina Zirconia Grain 30/60
Electrofused alumina-zirconia grain 30/60 mesh, ZrO2-toughened artificial corundum for heavy-duty abrasives. Refined grains, HTS 2818.10.20.
Micronized Alumina Polish 1 Micron
Micronized alumina 1 micron for optical polishing, ultra-refined powder. Artificial corundum HTS 2818.10.20.
Sintered Bauxite Proppant 40/70
Sintered bauxite proppant 40/70 for oil/gas, artificial corundum grains refined.
High Purity Alumina HPA 99.99% Powder
HPA 99.99% for Li-ion battery separators, pulverized refined corundum.
Fused Mullite Grain 4-10mm
Fused mullite (3Al2O3·2SiO2) grain, but primarily alumina artificial corundum base.
Alumina Blasting Media 80 Grit
Virgin alumina blasting media 80 grit, ground refined.
Nano Alumina Particles D50 50nm
Nano alumina particles D50 50nm for advanced ceramics, pulverized.