7304.24.40.60 - Having a wall thickness of 12.7 mm or more

This HTS category, 7304.24.40.60, specifically classifies seamless casing pipes made of iron or steel that are intended for use in drilling for oil or gas. The defining characteristic of these pipes is their substantial wall thickness, being 12.7 mm or greater. These are typically heavy-duty components designed to withstand the significant pressures and stresses encountered in oil and gas extraction operations.

This classification is distinguished from its sibling category, 7304.24.40.50, solely by the wall thickness. While both classify similar casing pipes for oil and gas drilling, this category applies to those with a wall thickness of 12.7 mm or more, whereas the sibling category covers those with a wall thickness less than 12.7 mm. The material (stainless steel) and the preceding classification criteria (seamless, casing, for oil/gas drilling, outside diameter exceeding 285.8 mm but not exceeding 406.4 mm) remain consistent between these two sibling categories.

As this is a leaf node in the HTS classification structure, there are no further subcategories. Therefore, the classification is finalized at this level based on the described physical characteristics and intended use of the goods. Examples of products falling into this category would include robust casing pipes with the specified diameter range and a wall thickness meeting or exceeding 12.7 mm, manufactured from stainless steel and destined for the demanding environment of oil and gas well construction.