C46400 Naval Brass Slab
C46400 naval brass slab is an unwrought copper-zinc-tin alloy containing approximately 60% copper, 39% zinc, and 1% tin. It is classified under tariff item 7403.21.00 as a copper-zinc base alloy (brass) because zinc predominates over tin, and the tin content is less than 3%, which keeps it within the brass definition.
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 tin content is 3% or more and tin predominates over zinc
Copper-tin base alloys (bronzes) are classified under subheading 7403.22.
If the slab has been rolled or otherwise worked into plates, sheets, or strip
Worked copper alloy 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
• Confirm the slab is unwrought and has not been worked after production
• Provide the alloy composition to demonstrate that tin content is below 3% and zinc predominates
• Check if the goods qualify for preferential duty rates under trade agreements by submitting the appropriate certificate of origin
Related Products under Tariff item 7403.21.00
C26000 Cartridge Brass Ingot
C26000 cartridge brass ingot is an unwrought copper-zinc base alloy containing approximately 30% zinc, cast into ingot form for further processing. It qualifies as a copper-zinc base alloy (brass) under tariff item 7403.21.00 because zinc is the predominant alloying element after copper, and the alloy meets the definition of brass in the chapter notes.
C35300 High-Leaded Brass Slab
C35300 high-leaded brass slab is an unwrought copper-zinc base alloy containing approximately 60% copper, 36% zinc, and 2-3% lead. It falls under tariff item 7403.21.00 as a copper-zinc base alloy (brass) because zinc predominates over lead and other elements, and the lead content is within the limits that still allow classification as brass.
C36000 Free-Cutting Brass Billet
C36000 free-cutting brass billet is an unwrought copper-zinc base alloy containing approximately 60% copper, 36% zinc, and 3% lead. It is classified under tariff item 7403.21.00 as a copper-zinc base alloy (brass) because zinc is the predominant alloying element after copper, and the lead content does not disqualify it from brass classification.
C37700 Forging Brass Ingot
C37700 forging brass ingot is an unwrought copper-zinc-lead alloy designed for hot forging applications. It contains approximately 60% copper, 38% zinc, and 2% lead, with zinc predominating over lead and other elements. It qualifies as a copper-zinc base alloy (brass) under tariff item 7403.21.00.
C67000 Manganese Brass Billet
C67000 manganese brass billet is an unwrought copper-zinc base alloy with manganese added for strength. It contains approximately 63% copper, 30% zinc, and 5% manganese, with zinc predominating over manganese and other elements. It qualifies as a copper-zinc base alloy (brass) under tariff item 7403.21.00.
C69300 Arsenical Brass Billet
C69300 arsenical brass billet is an unwrought copper-zinc base alloy containing small amounts of arsenic for improved corrosion resistance. It contains approximately 60% copper, 39% zinc, and 0.1% arsenic, with zinc predominating over arsenic. It is classified under tariff item 7403.21.00 as a copper-zinc base alloy (brass).