7214.99.00.90 - Containing by weight 0.6 percent or more of carbon

This HTS category, 7214.99.00.90, encompasses "other bars and rods of iron or nonalloy steel, not further worked than forged, hot-rolled, hot-drawn or hot-extruded, but including those twisted after rolling," specifically those containing by weight 0.6 percent or more of carbon. These are essentially steel bars and rods that have undergone basic shaping processes and possess a significant carbon content, making them suitable for applications requiring enhanced hardness and strength. The category captures a broad range of such steel products that do not fit into more specific subheadings within 7214.

The key differentiator for this classification lies in its carbon content threshold. It is distinct from its sibling categories: 7214.99.00.60, which covers similar bars and rods with less than 0.25 percent carbon, and 7214.99.00.75, which applies to those containing 0.25 percent or more but less than 0.6 percent carbon. Therefore, goods classified under 7214.99.00.90 must meet the minimum 0.6 percent carbon weight requirement to be distinguished from lower-carbon steel variants.

As a leaf node in the HTS structure, this category does not have further subcategories. The classification is determined solely by the material composition (specifically the carbon content) and the initial working processes applied to the iron or nonalloy steel bars and rods, as outlined in the parent heading 7214. Therefore, accurate classification hinges on precise chemical analysis of the carbon content and confirmation of the specified preliminary shaping methods.