Naval Brass Slab
Naval Brass Slab is an unwrought copper-zinc alloy slab containing about 1% tin and lead, used for propeller shafting and marine hardware. The tin content is below 3%, so it remains a brass (copper-zinc base alloy) under Chapter 74, and as an unwrought product it falls under tariff item 7403.29.00 for other copper alloys.
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 below 3% and zinc predominates over other elements
Naval brass is a copper-zinc base alloy, covered by the brass subheading.
If the slab has been worked beyond simple trimming or de-scaling
Worked copper products are classified as bars, rods, or profiles, not unwrought.
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's dimensions and shape meet the definition of unwrought products, as bars or profiles have separate classifications
• Keep documentation of the alloy composition, especially tin and lead content, to justify the brass classification
• Check if the slab requires any special permits for marine use
Related Products under Tariff item 7403.29.00
Admiralty Brass Billet
Unwrought copper-zinc alloy billet with 1% tin addition for corrosion resistance in marine applications. As a brass with tin content under 3%, it is classified under 'other copper alloys' in tariff item 7403.29.00.
Aluminum Bronze C95400 Ingot
Aluminum bronze C95400 ingot, containing 85% copper, 11% aluminum, 4% iron, and 3% nickel, in unwrought form. Aluminum predominates over other alloying elements, classifying it as an 'other copper alloy' under tariff item 7403.29.00, distinct from brasses, bronzes, or nickel silvers defined in the subheading notes.
Architectural Bronze C38500 Ingot
Architectural bronze C38500 ingot, an unwrought copper alloy with 57% copper, 41% zinc, and 2% lead, used for ornamental work. Although called 'bronze,' the zinc content exceeds tin, and with tin below 3%, it does not meet the subheading note definition of bronze, thus classifying as an 'other copper alloy' under 7403.29.00.
Architectural Bronze Ingot
Low-tin copper-zinc alloy ingot with less than 3% tin for architectural castings. As a brass rather than a true bronze, it is classified under 'other copper alloys' in tariff item 7403.29.00.
Beryllium Copper C17300 Ingot
Beryllium copper C17300 ingot, an unwrought alloy of 96% copper, 1.9% beryllium, and 0.2% lead, used for high-strength connectors and springs. Beryllium is not one of the elements defining brasses, bronzes, or nickel silvers, so this alloy falls under 'other copper alloys' in tariff item 7403.29.00.
Cartridge Brass Anode
Unwrought 70/30 copper-zinc alloy castings used as anodes in electroplating baths. As a copper-zinc base alloy (brass), it is classified under 'other copper alloys' in tariff item 7403.29.00.