7304.19.10.45 - Having a wall thickness less than 12.7 mm

This HTS category, 7304.19.10.45, specifically classifies seamless tubes, pipes, and hollow profiles made of iron or non-alloy steel that are designed for use in oil or gas pipelines. The defining characteristic of this subcategory is that the wall thickness of these pipes must be less than 12.7 mm. This distinction is crucial for proper tariff assessment, as it differentiates these lighter-gauge pipeline components from those with thicker walls.

It is important to distinguish this classification from its sibling, 7304.19.10.60, which covers similar pipeline tubes and pipes but with a wall thickness of 12.7 mm or more. Therefore, when classifying a seamless iron or steel pipe intended for oil or gas pipelines, determining whether its wall thickness falls below or at/above the 12.7 mm threshold is the primary differentiating factor between these two sibling categories.

As this is a leaf node in the HTS, there are no further subcategories. Classification under 7304.19.10.45 is final once the criteria of being a seamless iron or non-alloy steel pipe used for oil or gas pipelines, and having a wall thickness less than 12.7 mm, are met. Examples of goods that would fall here include specific grades of API (American Petroleum Institute) line pipe that meet these dimensional specifications.