7411.21.10.00 - Seamless

This HTS category, 7411.21.10.00, specifically covers seamless tubes and pipes made from copper-zinc base alloys, commonly known as brass. These articles are manufactured without a welded seam, which is achieved through processes like extrusion or drawing. The material composition is primarily copper with zinc as the principal alloying element, defining their classification within this subcategory of copper alloys.

This specific classification is distinguished from its sibling, 7411.21.50.00, which encompasses "Other" tubes and pipes of copper-zinc base alloys. While 7411.21.10.00 is dedicated to seamless forms, the "Other" category would likely include brass tubes and pipes that are manufactured using different methods, such as those with welded seams or potentially other less common manufacturing processes not specifically delineated.

As this is a leaf node within the HTS structure, there are no further subcategories for this specific code. Therefore, the classification of goods under 7411.21.10.00 relies solely on the confirmation of their seamless construction and their composition as copper-zinc base alloys. It is important for importers and exporters to ensure that the physical characteristics and material makeup of their brass tubes and pipes align precisely with the definition of "seamless" to ensure correct entry.