7603.10.00.00 - Powders of non-lamellar structure

This HTS classification, 7603.10.00.00, specifically covers powders of aluminum that are *not* of a lamellar (layered or flaky) structure. This means the individual particles within the powder are irregular in shape, often granular, spherical, or amorphous, rather than possessing distinct, flat surfaces that can be peeled or separated. These non-lamellar aluminum powders are typically produced through processes like atomization, where molten aluminum is broken into fine droplets that solidify into irregular shapes.

It is crucial to distinguish this category from its sibling, 7603.20.00.00, which covers aluminum powders and flakes of a lamellar structure. The primary difference lies in the physical morphology of the aluminum particles. While 7603.10.00.00 encompasses irregularly shaped particles, 7603.20.00.00 is reserved for materials where the aluminum particles exhibit a distinct layered or flaky appearance. This distinction is based on observable physical characteristics and is a key criterion for correct classification.

As this node represents a leaf node in the HTS, there are no further subcategories. Therefore, classification under 7603.10.00.00 is final based on the identified characteristic of non-lamellar structure. Examples of goods that would fall here include certain types of aluminum dust used in pyrotechnics, metal coatings, or as a reactant in chemical processes where a non-flake form is desired.