7304.29.10.30 - Having a wall thickness less than 12.7 mm

This HTS classification, 7304.29.10.30, specifically covers seamless casing pipes made of iron or non-alloy steel. These pipes are intended for use in the exploration and extraction of oil and natural gas. The defining characteristic of this subcategory is a wall thickness strictly less than 12.7 mm. These dimensions are critical for determining the appropriate duty rates and compliance requirements for imported or exported goods.

It is important to distinguish this classification from its sibling, 7304.29.10.40. The sole differentiating factor is the wall thickness. While 7304.29.10.30 applies to casing with walls thinner than 12.7 mm, the sibling category encompasses those with a wall thickness equal to or greater than 12.7 mm. Therefore, accurate measurement of the wall thickness is paramount for correct classification.

As this classification represents a leaf node within the HTS structure, there are no further subcategories. The criteria of seamless construction, application in oil and gas drilling (as casing), material (iron or non-alloy steel), threading/coupling, outside diameter range, and wall thickness less than 12.7 mm collectively define the scope of this particular HTS code. Compliance with all these specifications is necessary for goods to be classified under this heading.