Chapter 7603 — Customs Tariff Headings
Subheadings
Products classified under Tariff item 76.03
Aluminum Powder 99.9% for Pyrotechnics
Extra dark atomized aluminum powder with 99.9% purity, non-lamellar structure, and particle size between 200-325 mesh. Used in pyrotechnics, fireworks, and flares to produce bright flashes. Falls under this tariff item as it is a powder of non-lamellar structure, not flakes.
7603.10.00Aluminum Powder for Cold Spray Applications
Helium atomized aluminum powder with spherical non-lamellar particles, 22-53 microns, used for cold spray metal deposition repair. High purity essential for aerospace repair coatings. Classified under this item as a non-lamellar aluminum powder.
7603.10.00Aluminum Powder for Investment Casting
Blended non-lamellar aluminum powder, -120+400 mesh, used for investment casting shell molds and ceramic slurries. Provides strength in refractory coating applications. Classified under this item as a non-lamellar aluminum powder component.
7603.10.00Aluminum Powder for Powder Metallurgy
Pure aluminum powder blend, -100+325 mesh, for powder metallurgy automotive parts. Non-lamellar structure qualifies for this item. The blend simulates alloy properties through particle size mix but remains non-alloyed aluminum.
7603.10.00Aluminum Powder German Silver Finish
Non-lamellar atomized aluminum powder engineered for German silver metallic finish in coatings, 99.8% purity, 12-24 microns. Provides rich color depth in coatings. Classified under this item as a powder of non-lamellar structure before pigment dispersion.
7603.10.00Aluminum Powder Type 123 for Aerospace
Alcoa Type 123 spherical non-lamellar aluminum powder meeting aerospace material specification AMS 3810, particle range 4-32 microns. Used for thermal spray coatings. Classified under this item as pure aluminum powder.
7603.10.00Atomized Aluminum Powder 99.7% Pure
Finely atomized aluminum powder with 99.7% purity and non-lamellar spherical particles, used in powder metallurgy and additive manufacturing. Classified under this item as it consists of aluminum powders without flake structure.
7603.10.00Dark Atomized Aluminum Powder for Flash Powders
Dark gray atomized non-lamellar aluminum powder for photographic flash powders and theatrical effects, 99.5% purity, 3-5 micron particles. Rapid ignition characteristic for special effects. Classified under this item as a non-lamellar aluminum powder.
7603.10.00ECO Grade Aluminum Powder Dark
EC grade dark non-lamellar aluminum powder made from recycled content, 6-10 microns for green pyrotechnics. Maintains 99% purity while reducing carbon footprint. Classified under this item regardless of recycled origin.
7603.10.00Gas Atomized Aluminum Powder -325 Mesh
High-purity gas-atomized aluminum powder finer than 325 mesh (44 microns), non-lamellar spherical morphology for 3D printing and thermal spraying. Classified under this item as a non-flake powder form of unalloyed aluminum.
7603.10.00High Purity Aluminum Powder 99.99%
4N (99.99%) ultra-high purity non-lamellar aluminum powder for semiconductor sputtering targets and electronics. Spherical particles 1-5 microns. Vacuum packaged to maintain purity. Classified under this item as pure aluminum powder.
7603.10.00Microfine Aluminum Powder for Explosives
Air-classified microfine non-lamellar aluminum powder (5-10 microns) for aluminized explosives and booster charges. High reactivity due to small particle size. Classified under this item as pure aluminum powder.
7603.10.00Non-Alloyed Aluminum Powder -200 Mesh
-200 mesh (74 micron) non-alloyed aluminum powder with spherical non-lamellar particles for brazing alloys and sintered components. Precisely matches this item as powder of pure aluminum structure. Low oxygen content.
7603.10.00Reactive Aluminum Nanocrystals 50nm
50nm non-lamellar aluminum nanocrystals with passivated shell for energetic materials research. Despite nanoscale, classifies as powder under this item due to metallic aluminum composition. High energy density applications.
7603.10.00Spherical Aluminum Powder for Additive Manufacturing
Ultra-fine spherical non-lamellar aluminum powder (15-53 microns) optimized for selective laser melting in metal 3D printing. Falls under this item as pure aluminum powder without flake structure. Ensures high density in printed parts.
7603.20.00Aluminum Flake for Powder Coatings
Dry lamellar aluminum flakes optimized for powder coating extrusion, providing metallic finishes on appliances. These flakes have a lamellar structure and are classified as powders of lamellar structure under tariff item 7603.20.00.
7603.20.00Aluminum Flake Powder for Plastics Pigmentation
Lamellar aluminum flakes treated for dispersion in thermoplastics, providing metallic luster in molded plastic parts like automotive trim. These flakes are classified as powders of lamellar structure under tariff item 7603.20.00, as they are not yet compounded into plastics.
7603.20.00Aluminum Flakes for Intaglio Printing Inks
Medium coarse lamellar aluminum flakes for security printing inks, providing metallic security features in currency and documents. These flakes have a distinct flake morphology for ink alignment and are classified as powders of lamellar structure under tariff item 7603.20.00.
7603.20.00Aluminum Flakes for Mirror Effect Coatings
Ultra-thin lamellar aluminum flakes (<1 micron thick) for high-chroma mirror finishes in cosmetic packaging and chrome alternatives. These premium flakes maximize reflection and are classified as powders of lamellar structure under tariff item 7603.20.00.
7603.20.00Aluminum Leafing Flakes
Thin, flat aluminum flakes with a lamellar structure designed for leafing in paints and coatings, where they align parallel to the surface to create a metallic sheen. These flakes are classified as powders of lamellar structure under tariff item 7603.20.00.
7603.20.00Aluminum Pigment Flakes 20 Micron
Lamellar aluminum flakes sized at 20 microns, non-leafing type used in industrial paints for uniform metallic effects without surface floating. These flakes are classified as powders of lamellar structure under tariff item 7603.20.00.
7603.20.00Corn Flake Aluminum Pigment
Corn flake-shaped lamellar aluminum particles for hammer finish effect paints, creating textured metallic appearance. These irregular lamellar flakes are classified as powders of lamellar structure under tariff item 7603.20.00.
7603.20.00Dutch Gold Aluminum Flakes
'Dutch gold' grade lamellar aluminum flakes historically used for imitation gold leaf in decorative paints and inks. These fine flakes have a classic lamellar structure and are classified as powders of lamellar structure under tariff item 7603.20.00.
7603.20.00Fine Aluminum Lamellar Powder for Explosives
Ultra-fine lamellar aluminum powder (5-10 microns) used as fuel in pyrotechnics and explosives for enhanced burn rate. These flakes have a high surface area and are classified as powders of lamellar structure under tariff item 7603.20.00.
7603.20.00Granular Aluminum Leafing Flakes
Coarse lamellar flakes in granular paste form for easy mixing in high-solids coatings. The aluminum component retains flake structure despite the carrier, and these are classified as powders of lamellar structure under tariff item 7603.20.00.
7603.20.00High Purity Lamellar Aluminum Powder 99.9%
99.9% pure lamellar aluminum powder for analytical and R&D applications requiring flake morphology. This precisely meets the definition of non-alloyed aluminum and is classified as powders of lamellar structure under tariff item 7603.20.00.
7603.20.00Micronized Aluminum Flakes for Automotive Paint
Fine aluminum flakes around 10-20 microns thick with lamellar structure, optimized for automotive metallic basecoats to provide sparkle and durability. These are classified as powders of lamellar structure under tariff item 7603.20.00.
7603.20.00Passivated Aluminum Flakes for Aerospace Coatings
Lamellar flakes with silica passivation for corrosion resistance in aerospace topcoats and primers. These are classified as powders of lamellar structure under tariff item 7603.20.00, as the treatment does not change the fundamental character of the aluminum flakes.
7603.20.00Silver Dollar Aluminum Flakes
Large particle lamellar flakes (20-40 microns) resembling silver dollars, used in heavy-duty roof coatings for maximum leafing. These flakes are classified as powders of lamellar structure under tariff item 7603.20.00.
7603.20.00Super Leafing Aluminum Flakes for Industrial Coatings
High leafing grade aluminum flakes with pronounced lamellar structure for protective industrial coatings like roof paints and marine finishes. These flake powders are classified as powders of lamellar structure under tariff item 7603.20.00.