7215.50.00.65 - With a diameter or cross section exceeding 228 mm

This HTS category, 7215.50.00.65, specifically classifies "other bars and rods of iron or nonalloy steel" that have undergone cold forming or cold finishing, and crucially, contain by weight between 0.25 percent and 0.6 percent of carbon. The defining characteristic for this particular classification is a cross-sectional dimension, whether a diameter for round bars or the largest dimension for other shapes, exceeding 228 millimeters.

This category is distinct from its sibling categories based solely on the physical dimension of the bar or rod. Whereas 7215.50.00.61 covers those with a cross-section measuring less than 76 mm, and 7215.50.00.63 encompasses those measuring 76 mm or more but not exceeding 228 mm, this code applies to the largest dimension in this specific carbon content range. All these sibling categories fall under the broader scope of "other, not further worked than cold-formed or cold-finished" bars and rods of iron or nonalloy steel.

As this classification represents a "leaf node," there are no further subdivisions within this specific code. Therefore, accurate classification into 7215.50.00.65 hinges on a precise determination of the carbon content (0.25% to 0.6%) and the measurement of the bar or rod's cross-sectional dimension exceeding 228 mm, in addition to verifying that the material is indeed iron or nonalloy steel and has been cold-formed or cold-finished.