7304.59.80.70 - Having a wall thickness of 19 mm or more

This HTS classification, 7304.59.80.70, specifically covers seamless tubes, pipes, and hollow profiles made from iron or steel that are of a circular cross-section and constructed from other alloy steel. These articles are further defined by their physical dimensions, falling within the "Other" subcategories at multiple hierarchical levels. The defining characteristic of this particular code is that the wall thickness of these seamless steel tubes and pipes must be 19 mm or greater.

This category is distinguished from its siblings by its specific wall thickness requirement. For instance, HTS 7304.59.80.60 covers similar alloy steel tubes and pipes with a wall thickness *less than* 12.7 mm, while HTS 7304.59.80.65 applies to those with a wall thickness of 12.7 mm or more but *less than* 19 mm. Therefore, only tubes and pipes with a wall thickness meeting or exceeding 19 mm are classified under 7304.59.80.70.

As this is a leaf node in the HTS structure, there are no further subcategories. Classification at this level is solely determined by the specified material (other alloy steel), shape (circular cross-section), construction (seamless), outside diameter range (exceeding 285.8 mm but not exceeding 406.4 mm), and the critical wall thickness of 19 mm or more. Importers must ensure that all these criteria are met to correctly classify their goods.