7304.59.80.45 - Having a wall thickness less than 12.7 mm

This HTS classification, 7304.59.80.45, covers seamless tubes and pipes, as well as hollow profiles, made from iron or steel that are not cast iron. Specifically, these articles are of "other alloy steel" and have a circular cross-section. The defining characteristic for this category is their "other" classification within the broader grouping of seamless alloy steel tubes with a circular cross-section. Further refinement places them in the "other" subcategory for tubes with an outside diameter between 190.5 mm and 285.8 mm.

The crucial differentiating factor for classification within this group is wall thickness. This particular code, 7304.59.80.45, applies to tubes and pipes where the wall thickness is strictly less than 12.7 mm. This distinguishes them from sibling categories. For instance, 7304.59.80.50 covers similar tubes but with a wall thickness of 12.7 mm or more, up to but not including 19 mm. Similarly, 7304.59.80.55 applies to articles with a wall thickness of 19 mm or greater.

As this is a leaf node in the HTS structure, there are no further subdivisions. Therefore, the classification is definitive based on the material (other alloy steel), form (seamless tubes, pipes, or hollow profiles), cross-section (circular), outside diameter range (190.5 mm to 285.8 mm), and the specific wall thickness criterion (less than 12.7 mm). Importers and exporters must meticulously measure and confirm these physical attributes to ensure correct classification and compliance.