7229.90.50 - Round wire

This category encompasses round wire manufactured from alloy steel, specifically classified under heading 7229. It represents a significant portion of alloy steel wire production that does not fall into more specific subheadings based on shape or composition. The wire's circular cross-section is a defining physical characteristic.

Distinguishing this category from its sibling, 7229.90.10.00 (Flat wire), is crucial. While both are forms of alloy steel wire under the "Other" classification, this subheading specifically addresses wire that is not flat in cross-section. The other sibling, 7229.90.90.00, also falls under "Other" and serves as a catch-all for any alloy steel wire not specifically enumerated elsewhere.

The subcategories under 7229.90.50 provide further refinement based on specific technical properties and intended uses. The first set of subcategories differentiates wire based on its diameter, carbon content, and the presence of nickel or molybdenum, along with its suitability for electric arc welding. This detailed breakdown allows for precise classification of specialized alloy steel wires. The subsequent "Other" subcategory serves as a residual classification for any remaining round alloy steel wire that doesn't meet the specific criteria of the preceding subdivisions.