Copper-Boron Master Alloy
Copper-boron master alloy containing 4-8% boron, used for grain refinement in copper casting alloys such as bronzes. This product provides controlled boron addition to enhance mechanical properties. It is classified under tariff item 7405.00.00 as a master alloy of copper.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the product is refined copper
Refined copper products fall under heading 74.03.
If the product is worked into bars or rods
Worked copper products are classified under heading 74.07.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document the boron content and intended use to support classification under 7405.00.00
• Ensure the product is not considered a waste or scrap material
• Verify if any import restrictions apply to boron-containing products
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