7405.00.60 - Other

This HTS category, 7405.00.60, specifically covers "master alloys of copper, not elsewhere specified." It encompasses alloys primarily composed of copper, which are intended for use as additives in the production of other alloys, but do not fit into more specific subcategories based on their composition or intended use as defined elsewhere in the Harmonized Tariff Schedule. These are not typically end-use products but rather intermediate materials for further metallurgical processing.

This category differentiates itself from sibling entries by its broader scope. For instance, while a sibling category might exist for master alloys containing a specific percentage of phosphorus (e.g., 7405.00.10.00), this category captures all other copper master alloys that do not meet such precise compositional criteria. The key distinction lies in the absence of specific compositional or functional qualifiers that would place the material into a more narrowly defined classification.

Within this "Other" classification for copper master alloys, further subdivisions exist to provide greater specificity. These subcategories allow for the precise identification of specialized types of master alloys. For example, the beryllium copper master alloy (7405.00.60.30) is specifically called out due to the unique properties and applications of beryllium as an alloying element with copper. The remaining entries under this "Other" heading would then encompass all copper master alloys not otherwise classified, such as those with aluminum, silicon, or other elements, where the specific combination does not warrant a distinct tariff line.