7229.90.50.06 - Plated or coated with copper

This HTS category, 7229.90.50.06, specifically classifies wire of other alloy steel that has been plated or coated with copper. To fall under this classification, the wire must meet precise metallurgical and physical specifications. It must be a round wire with a diameter not exceeding 1.6 mm. Furthermore, it must contain by weight less than 0.20 percent carbon and either more than 0.3 percent nickel or more than 0.08 percent molybdenum. A key functional requirement is its suitability for electric arc welding, indicating a specialized application and composition.

This category is distinct from its sibling, 7229.90.50.08, which covers "Other" wire of alloy steel under the same broad heading. The differentiator lies in the specific additional plating or coating (copper) and the very precise chemical composition and diameter limits detailed for 7229.90.50.06, whereas the sibling category is a residual for alloy steel wires that do not meet these stringent criteria.

As this is a leaf node, there are no further subcategories. Therefore, classification within this heading relies entirely on meeting all the preceding descriptive and technical requirements, including the copper plating or coating and the detailed chemical and physical attributes for its suitability in electric arc welding applications.