7217.10.50.30 - Heat treated

This HTS category, 7217.10.50.30, specifically classifies heat-treated wire of iron or nonalloy steel. The wire must contain less than 0.25 percent carbon by weight, be round in shape, and have a diameter of 1.5 millimeters or more. The "heat-treated" designation is a critical distinguishing factor for classification within this specific sub-heading, indicating a thermal processing step has been applied to alter the wire's physical properties, such as hardness, tensile strength, or ductility.

This category is distinguished from its sibling, 7217.10.50.90 ("Other"), by the explicit inclusion of heat treatment as a defining characteristic. All other criteria, such as being made of iron or nonalloy steel, not being plated or coated, having less than 0.25 percent carbon, being round, and having a diameter of 1.5 mm or more, are common to both. Therefore, any wire meeting these base criteria but *not* having undergone heat treatment would fall under the "Other" category.

As this is a leaf node, there are no further subcategories. Classification ends at this point for wire that meets all the stipulated physical and processing requirements. Examples of goods that would fall here include specific grades of heat-treated steel wire used in construction, manufacturing, or as component parts where enhanced mechanical properties are required.