C90500 Gun Metal Pipe
Pipe made from C90500 gun metal, an alloy of approximately 88% copper, 10% tin, and 2% zinc, where tin content exceeds zinc and qualifies as a copper-tin base alloy (bronze) under subheading note (b). It is classified under tariff item 7411.29.00 as an 'other' copper alloy pipe, commonly used in bearings and valve components.
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 |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the alloy composition is reclassified as brass
If the zinc content exceeds tin or the alloy does not meet the bronze definition, it would fall under copper-zinc base alloy tubes and pipes.
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 alloy's tin content is at least 3% and predominates over zinc to qualify as bronze
• Keep records of the alloy's chemical analysis to support classification under the 'other' copper alloy subheading
Related Products under Tariff item 7411.29.00
C12200 Phosphor Bronze Seamless Tube
C12200 Phosphor Bronze Seamless Tube is a copper-tin alloy where tin predominates over other elements, fitting the bronze definition. It is classified under tariff item 7411.29.00 as an 'other' copper alloy tube, used in applications requiring strength and corrosion resistance.
C28000 Muntz Metal Brass Tube
C28000 Muntz Metal Brass Tube is a drawn copper-zinc alloy where zinc predominates, with tin <3%, fitting the brass definition. It is classified under tariff item 7411.29.00 as an 'other' copper alloy tube, commonly used in architectural applications.
C62300 Aluminum Bronze Condenser Tube
C62300 Aluminum Bronze Condenser Tube is a copper-aluminum alloy with 9% aluminum, used in condensers. It does not fit the specific alloy definitions (brass, bronze, nickel silver, copper-nickel) and is classified under tariff item 7411.29.00 as an 'other' copper alloy tube.
C63000 Aluminum Bronze Pipe
C63000 Aluminum Bronze Pipe is a seamless pipe from nickel aluminum bronze, a copper-aluminum alloy. It does not fit the specific alloy definitions and is classified under tariff item 7411.29.00 as an 'other' copper alloy pipe, used in propeller shafts and marine applications.
C65100 Low Silicon Bronze Pipe
C65100 Low Silicon Bronze Pipe is a copper-silicon alloy with 6% silicon, used for welding and structural marine applications. It does not fit the specific alloy definitions and is classified under tariff item 7411.29.00 as an 'other' copper alloy pipe.
C67300 Brass Condenser Tube
C67300 Brass Condenser Tube is an arsenical Muntz metal copper-zinc-arsenic alloy for heat exchangers, where zinc predominates and tin <3%, fitting the brass definition. It is classified under tariff item 7411.29.00 as an 'other' copper alloy tube.