HS Code for Copper master alloys

Copper master alloys are classified under HS code 7405.00. In the nomenclature of the Harmonized System, master alloys are defined as alloys containing copper with other elements in any proportion, which are not usefully malleable and are generally used as additives in the manufacture of other alloys or as de-oxidants, de-sulphurants, or for similar metallurgical purposes. Unlike standard copper alloys intended for rolling, forging, or machining into finished goods, master alloys are intermediate products. They are typically brittle and are produced in shapes such as ingots, blocks, or slabs to be melted down. Heading 7405 is a single-level heading that specifically captures these compositions, provided they do not meet the definition of copper phosphide (phosphor copper) containing more than 15% by weight of phosphorus, which would move the product into Chapter 28.

Products Included

• Copper-manganese master alloys
• Copper-silicon master alloys
• Copper-boron master alloys
• Copper-iron master alloys
• Phosphor copper containing 15% or less phosphorus

Common Misclassification

The most frequent misclassification occurs with HS code 7403, which covers refined copper and copper alloys in unwrought forms like ingots or billets. The distinction is that 7403 alloys are intended for further mechanical working (rolling, drawing), whereas 7405 master alloys are too brittle for such processes and are only used as additives. Another error involves phosphor copper; if the phosphorus content exceeds 15% by weight, the substance is considered a chemical compound and is classified under HS code 2853.90. Additionally, master alloys of other base metals (like aluminum master alloys) must be classified in their respective chapters (e.g., 7601 for aluminum).

FAQ

What is the HS code for copper master alloys?

The specific HS code for master alloys of copper is 7405.00.

Can master alloys be used to manufacture parts directly?

No, master alloys are generally not malleable and are too brittle for direct manufacturing; they are intended to be melted and added to other metals to adjust their chemical composition.