7303.00.00 - Tubes, pipes and hollow profiles, of cast iron

This HTS category, 7303.00.00, specifically covers tubes, pipes, and hollow profiles manufactured from cast iron. These articles are characterized by their cast iron composition, which imparts properties like rigidity, corrosion resistance, and the ability to withstand pressure, making them suitable for a variety of fluid conveyance and structural applications. The classification is situated within Chapter 73, which deals with articles of iron or steel, and Section XV, pertaining to base metals and articles thereof.

Distinguishing this category from its siblings at the same level within the HTS requires attention to material and form. For instance, other categories within Chapter 73 might cover fabricated steel tubes or pipes made from wrought iron, whereas this specific code is exclusively for items formed through the casting process using cast iron. Similarly, categories outside of Chapter 73 would address tubes and pipes made from other materials, such as plastics or non-ferrous metals.

The subcategories within 7303.00.00 further refine the classification based on specific applications and dimensions. "Soil pipe" (7303.00.00.30) refers to pipes designed for drainage and waste systems. "Pressure pipe with an inside diameter of less than 356 mm" (7303.00.00.60) is designated for pipes intended to carry fluids under pressure, with a specific size limitation. The residual "Other" category (7303.00.00.90) captures any cast iron tubes, pipes, or hollow profiles not fitting the more specific descriptions, ensuring comprehensive coverage of this product group.