7217.10.50 - With a diameter of 1.5 mm or more

This HTS category, 7217.10.50, specifically classifies round wire made of iron or nonalloy steel that is neither plated nor coated, and whether or not it has been polished. A key defining characteristic for this subheading is that the wire must have a diameter measuring 1.5 millimeters or more. This distinguishes it from a sibling category at the same level which covers wires with a smaller diameter.

The wire classified here is further defined by its carbon content, containing less than 0.25 percent by weight. This indicates it is a relatively low-carbon steel product, commonly used for a variety of industrial and commercial applications where ductility and formability are important. The "not plated or coated" criterion is crucial, meaning the surface of the wire is bare steel, without any protective or decorative layers like zinc, tin, or paint.

Within this category, further subdivisions exist to provide more granular classification. Subcategory 7217.10.50.30 covers wire that has undergone a heat treatment process, which modifies its mechanical properties, while subcategory 7217.10.50.90 encompasses all other wire meeting the primary criteria but not specifically heat-treated. These subcategories allow for more precise tracking and tariff application based on processing.