7606.91.30 - Not clad

This HTS category, 7606.91.30, specifically encompasses aluminum plates, sheets, and strip that are not clad, are of aluminum and not alloyed, and exceed a thickness of 0.2 mm. The term "not clad" signifies that the material does not have a layer of a different metal or alloy bonded to its surface. This classification focuses on pure aluminum products in flat-rolled forms, excluding any composite structures or surface treatments involving the bonding of dissimilar metals.

It is important to distinguish this category from its sibling, 7606.91.60, which covers similar aluminum plates, sheets, and strip that *are* clad. The presence or absence of a cladding layer is the defining characteristic separating these two classifications. Therefore, if an aluminum product has another metal or alloy applied to its surface via a bonding process, it would fall under the clad category, not this one.

Within this category, further subdivisions are made based on the thickness of the aluminum plate, sheet, or strip. The subcategories are 7606.91.30.55 for products with a thickness exceeding 6.3 mm and 7606.91.30.95 for those with a thickness of 6.3 mm or less. This thickness-based differentiation allows for more precise classification based on the specific dimensions of the unclad, unalloyed aluminum material.