7407.29.16.10 - Of copper-nickel base alloys (cupro-nickel) or copper-nickel-zinc base alloys (nickel silver)

This HTS category, 7407.29.16.10, specifically classifies hollow bars and rods made from copper-nickel base alloys, commonly known as cupro-nickel, or copper-nickel-zinc base alloys, also referred to as nickel silver. These materials are characterized by their distinctive metallic properties derived from the presence of nickel within the copper matrix, offering enhanced corrosion resistance and strength compared to pure copper. The "hollow" designation is crucial, indicating that these articles possess a tubular or cored structure from their initial formation, distinguishing them from solid bars and rods that might be subsequently hollowed out.

When classifying within the broader scope of "Copper bars, rods and profiles" (7407), it is essential to differentiate this specific subcategory. Its direct sibling, 7407.29.16.80, covers "Other" profiles within the "Other" copper alloys section. Therefore, this category is distinct because it is limited *only* to hollow articles made from specific copper-nickel or copper-nickel-zinc alloys, whereas the sibling category would encompass any other types of profiles (solid, extruded, etc.) or profiles made from different copper alloys not specified here.

As a leaf node within the HTS classification system, there are no further subcategories beneath 7407.29.16.10. Classification decisions at this level rely heavily on confirming both the specific alloy composition (copper-nickel or copper-nickel-zinc) and the hollow cross-sectional form of the bar or rod. Importers and exporters must ensure that the physical form and material composition precisely match the defining characteristics of this code to avoid misclassification.