7306.69.30.00 - Of alloy steel

This HTS category, 7306.69.30.00, specifically classifies welded tubes, pipes, and hollow profiles of iron or steel that have a non-circular cross-section and are made of alloy steel. The defining characteristic here is the material composition: these articles are explicitly manufactured from alloy steel, which implies the addition of one or more alloying elements (such as chromium, nickel, molybdenum, etc.) to enhance properties like strength, hardness, or corrosion resistance beyond those of non-alloy steel. The welded construction and non-circular cross-section are also critical criteria for inclusion.

Distinguishing this category from its sibling, 7306.69.10.00, hinges entirely on the material. While both cover welded, non-circular tubes, pipes, and hollow profiles with a wall thickness of 4 mm or more, this classification is exclusively for those made of alloy steel. The sibling category, conversely, covers similar articles made of iron or non-alloy steel. Therefore, precise material identification is paramount for correct classification.

As this HTS code represents a leaf node, there are no further subcategories. This means that all articles meeting the criteria of being welded, having a non-circular cross-section, a wall thickness of 4 mm or more, and being composed of alloy steel will fall directly under this specific 10-digit code. Examples might include specialized structural components, decorative elements, or parts for industrial machinery where the enhanced properties of alloy steel are required.