7224.90.00.45 - Having a width less than four times the thickness

This HTS category, 7224.90.00.45, specifically covers semi-finished products of "other alloy steel" that are of a rectangular (including square) cross-section and have a width less than four times their thickness. "Other alloy steel" refers to alloy steels not specifically enumerated elsewhere in heading 7224, meaning they do not fit into categories for high-speed steel, silicon-electrical steel, or stainless steel. These semi-finished products are typically in forms such as billets, blooms, or bars, intended for further processing into finished articles.

The critical distinguishing factor for this classification is the dimensional ratio of the cross-section. It is differentiated from its sibling category, 7224.90.00.55, which covers similar alloy steel products where the width is at least four times the thickness. This distinction emphasizes the specific geometry of the product, a key criterion in the classification of semi-finished steel.

As this is a leaf node in the HTS, there are no further subcategories. Classification at this level relies entirely on meeting the criteria of being an "other alloy steel," a semi-finished product of rectangular cross-section, and having a width that is less than four times its thickness. Examples of products that would fall here include certain types of alloy steel wire rods or narrow flats that are intended for rolling into wire or other forms, provided they meet all the material and dimensional specifications.