7217.10.80.45 - With a diameter of 1.5 mm or more

This HTS category encompasses round wire made of iron or non-alloy steel, specifically heat-treated wire that contains 0.6 percent or more carbon by weight. These wires are neither plated nor coated, though they may be polished. The defining characteristic for inclusion in this subcategory is their diameter, which measures 1.5 mm or more.

This classification distinguishes itself from its siblings based on precise diameter ranges. Unlike wire with a diameter of less than 1.0 mm (7217.10.80.25) or wire with a diameter between 1.0 mm and less than 1.5 mm (7217.10.80.30), this category applies only to round wire that meets or exceeds the 1.5 mm diameter threshold. All other criteria, such as being unplated, uncoated, polished, heat-treated, and containing 0.6% or more carbon, must also be met.

As this is a terminal node within the Harmonized Tariff Schedule, there are no further subcategories to introduce. Classification at this level is definitive based on the specific physical attributes described, primarily the substantial diameter of the round wire. Examples of goods that would fall under this classification include certain types of high-carbon steel wire used in industrial applications where strength and size are critical, such as in manufacturing specific mechanical components or heavier gauge wiring.