7217.90.50.30 - Containing by weight less than 0.25 percent of carbon

This HTS category, 7217.90.50.30, specifically covers wire of iron or non-alloy steel that is not otherwise specified within its heading and contains by weight less than 0.25 percent of carbon. This classification is crucial for distinguishing these particular types of steel wire based on their carbon content, which significantly impacts their physical properties and intended applications. These wires are typically characterized by their lower carbon levels, making them more ductile and less prone to hardness or brittleness compared to higher carbon steel wires.

The primary distinction between this category and its sibling subheadings lies in the precise carbon percentage. Category 7217.90.50.30 applies when the carbon content is *below* 0.25 percent by weight. This differentiates it from 7217.90.50.60, which covers wires with a carbon content ranging from 0.25 percent up to, but not including, 0.6 percent. Furthermore, it is distinct from 7217.90.50.90, which encompasses wires with a carbon content of 0.6 percent or more by weight. Therefore, careful quantitative analysis of the carbon composition is the definitive factor in correctly classifying wire under this specific subheading.

As this is a leaf node in the HTS structure, there are no further subcategories under 7217.90.50.30. Classification is finalized at this point based on the "other" designation within the "other" provisions for wire of iron or non-alloy steel, coupled with the strict carbon content threshold. Examples of goods that might fall into this category include certain types of low-carbon steel wire used in general construction, mild steel wire for fasteners, or annealed steel wire for binding purposes where high tensile strength is not a primary requirement.