7217.20.45.70 - Containing by weight 0.25 percent or more but less than 0.6 percent of carbon

This HTS classification, 7217.20.45.70, specifically covers round wire made of iron or non-alloy steel that has been plated or coated with zinc, and further categorized by its carbon content. The defining characteristic of this subcategory is that the wire contains by weight 0.25 percent or more but less than 0.6 percent of carbon. This precise carbon threshold is crucial for its correct classification within the broader category of zinc-plated or coated iron and non-alloy steel wire.

This category is distinguished from its sibling category, 7217.20.45.80, by this specific carbon content range. While both are round wires of iron or non-alloy steel coated with zinc and having a diameter of 1.5 mm or more, the sibling category applies to wires with a higher carbon content, specifically 0.6 percent or more. Therefore, the presence of 0.25% to less than 0.6% carbon is the sole differentiating factor for classification under this particular HTS code.

As this is a leaf node in the HTS classification, there are no further subcategories to introduce. This means that any round wire of iron or non-alloy steel, plated or coated with zinc, with a diameter of 1.5 mm or more, and containing by weight 0.25 percent or more but less than 0.6 percent of carbon, will fall directly under this code. Examples of such wire could include certain types of fencing wire, industrial binding wire, or specific grades of construction wire where this carbon content is specified for desired tensile strength and ductility after galvanization.