7304.39.00.24 - Having a wall thickness less than 6.4 mm

This HTS category, 7304.39.00.24, specifically classifies seamless tubes, pipes, and hollow profiles made of iron or non-alloy steel that have a circular cross-section and fall within a specific dimensional range. The defining characteristic of this classification is a wall thickness strictly less than 6.4 mm. These items are part of the broader group of "other" seamless tubes and pipes of iron or non-alloy steel, not specifically covered by other more granular descriptions within the 7304.39.00 range.

To distinguish this category from its siblings, the primary differentiator is the wall thickness. Unlike sibling categories 7304.39.00.28 (wall thickness of 6.4 mm or more but not exceeding 12.7 mm) and 7304.39.00.32 (wall thickness exceeding 12.7 mm), this classification is exclusively for items with a wall thickness measuring less than 6.4 mm. All these siblings share the same parentage of being other seamless tubes of circular cross-section of iron or non-alloy steel with an outside diameter of 38.1 mm or more but not exceeding 114.3 mm.

As this node represents a "leaf node" in the HTS structure, there are no further subcategories branching from this specific code. Therefore, classification under 7304.39.00.24 is final for seamless iron or non-alloy steel tubes and pipes with a circular cross-section, an outside diameter between 38.1 mm and 114.3 mm, and a wall thickness that is less than 6.4 mm. Examples might include certain types of conduit pipes, structural hollow sections used in light fabrication, or components for fluid transfer where thinner walls are sufficient.