7215.50.00.20 - With a diameter or cross section exceeding 228 mm

This HTS subcategory, 7215.50.00.20, specifically classifies "other bars and rods of iron or nonalloy steel" that have been further processed to have a diameter or cross-sectional dimension exceeding 228 millimeters. These are products that fall under the broader category of "other bars and rods" and have undergone cold forming or cold finishing. Furthermore, they must contain less than 0.25 percent by weight of carbon, aligning with the specifications of their immediate parent category.

The crucial distinguishing feature of this classification is its size specification. Unlike its siblings, 7215.50.00.16 and 7215.50.00.18, which cover bars and rods with smaller diameters or cross sections (less than 76 mm and between 76 mm and 228 mm respectively), this category is exclusively for those that are substantially larger, exceeding 228 mm. This precise dimensional cutoff is the primary criterion for differentiating these products at this level of the tariff schedule.

As this node represents a leaf category within the HTS, there are no further subdivisions. Therefore, classification under 7215.50.00.20 depends solely on meeting the stated criteria: being an "other bar or rod of iron or nonalloy steel," not further worked than cold-formed or cold-finished, containing less than 0.25 percent carbon by weight, and having a diameter or cross section that measures more than 228 millimeters. Examples of such items would include large, solid steel rods or bars used in heavy construction, manufacturing, or as components in large machinery.