7304.59.80.35 - Having a wall thickness of 12.7 mm or more but less than 19 mm

This classification, HTS 7304.59.80.35, pertains to seamless tubes, pipes, and hollow profiles made from iron or steel, specifically of other alloy steel and with a circular cross-section. The defining characteristic for this category is a wall thickness that falls within a precise range: greater than or equal to 12.7 millimeters but strictly less than 19 millimeters. These items are further distinguished by having an outside diameter that exceeds 114.3 millimeters but remains below 190.5 millimeters.

To further delineate this classification, it is crucial to understand its relationship with sibling categories. HTS 7304.59.80.30 covers similar alloy steel tubes with a circular cross-section and an outside diameter within the specified range, but with a wall thickness *less than* 12.7 mm. Conversely, HTS 7304.59.80.40 encompasses products with the same outer diameter and alloy steel composition, but with a wall thickness of *19 mm or more*. Therefore, the precise wall thickness is the critical differentiating factor for this specific classification.

As a leaf node in the HTS database, this category does not have further subdivisions. The classification is final based on the described physical characteristics: seamless construction, alloy steel composition, circular cross-section, a wall thickness of 12.7 mm to less than 19 mm, and an outside diameter exceeding 114.3 mm but less than 190.5 mm. Importers and exporters should meticulously verify these measurements to ensure accurate classification and compliance with customs regulations.