7229.90.05.00 - Of high-speed steel

This HTS category, 7229.90.05.00, specifically covers wire made from alloy steel that is *not* classified under preceding subheadings within 7229. The defining characteristic for inclusion in this particular classification is that the wire is manufactured from high-speed steel. High-speed steel is a type of tool steel known for its high hardness, wear resistance, and ability to retain hardness at elevated temperatures, making it suitable for high-performance cutting tools and other demanding applications.

Within the broader category of "Wire of other alloy steel," this specific subheading distinguishes itself by focusing solely on the material composition – high-speed steel. Other "other alloy steel" wires at the same level might be differentiated by specific alloying elements not considered "high-speed steel" by definition, or by different forms or treatments not applicable here. The "Other" designation under 7229.90 signifies that this is a residual category for alloy steel wire not elsewhere specified, with the "Of high-speed steel" further refining it to this precise material.

As this is a leaf node, there are no further subdivisions. Therefore, classification within 7229.90.05.00 hinges entirely on confirming that the wire in question is indeed composed of high-speed steel. Documentation supporting the material composition, such as mill certificates or technical specifications, will be crucial for accurate customs declaration and avoidance of potential duties or penalties.