7305.19.10 - Of iron or nonalloy steel

This HTS category, 7305.19.10, covers other tubes and pipes of iron or nonalloy steel that have a circular cross-section and an external diameter exceeding 406.4 mm. These are specifically designed for use as line pipe in oil or gas pipelines. The key defining characteristics for inclusion here are the material composition (iron or nonalloy steel) and their application in transporting oil or gas.

It is crucial to distinguish this classification from its sibling, 7305.19.50.00, which pertains to similar tubes and pipes but is specifically for those made of alloy steel. Therefore, the presence of alloying elements in the steel will direct classification to the sibling category, whereas this category is reserved for nonalloyed iron or steel.

Within this category, further subdivisions are based on the precise external diameter. Subcategory 7305.19.10.30 applies to pipes with an external diameter exceeding 406.4 mm but not exceeding 609.6 mm. The subcategory 7305.19.10.60 encompasses pipes with an external diameter exceeding 609.6 mm. These diameter distinctions are critical for accurate classification and ensure that the specific size of the pipeline is appropriately recorded.