7215.50.00.61 - With a diameter or cross section measuring less than 76 mm

This HTS classification covers "other bars and rods of iron or nonalloy steel" that have undergone cold-forming or cold-finishing processes and contain between 0.25% and 0.6% carbon by weight. These are typically characterized by a finished diameter or cross-sectional dimension measuring less than 76 millimeters. This category encompasses a wide range of steel bars and rods that are not otherwise specified in preceding subheadings and are ready for use in manufacturing or construction applications without further primary processing.

The distinguishing feature of this category lies in its specific dimensional criteria, differentiating it from its sibling classifications. While all share the same material composition (0.25% - 0.6% carbon) and processing (cold-formed or cold-finished), this specific subheading applies exclusively to bars and rods with a diameter or cross-section measuring *less than* 76 mm. This contrasts with sibling categories which cover products with dimensions of 76 mm or more up to 228 mm, and those exceeding 228 mm, respectively.

As this is a leaf node in the HTS classification, there are no further subcategories to introduce. The classification is definitive based on the material composition, the working process applied, and the precise physical dimensions of the bar or rod. Therefore, accurately measuring and confirming the diameter or cross-section of the iron or nonalloy steel bar or rod is the critical step for correct classification within this specific subheading.