Aluminum Alloy Round Pipe 4 inch Diameter
> This is an extruded hollow round profile made from aluminum alloy, intended for fluid conveyance or structural pillars in construction. Its hollow circular cross-section and alloy composition place it under tariff item 7604.21.00 as a hollow profile of aluminum 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 | +50.0% | 50% |
| 🇩🇪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 meets the definition of tubes or pipes
Hollow products with uniform wall thickness and concentric cross-sections are tubes or pipes.
If made of non-alloy aluminum
Hollow profiles of non-alloy aluminum are classified separately.
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
• > Determine whether the product is a profile or a tube/pipe by checking if it has a uniform wall thickness and concentric cross-section
• If it is a tube or pipe, it may be classified under heading 7608
• Provide alloy composition documentation to confirm it is an aluminum alloy
• If used for fluid conveyance, consider whether it is fitted with flanges or collars, which may affect classification
Related Products under Tariff item 7604.21.00
2014-T6 Aluminum Hollow Round Profile Rod
> This is a hollow round profile rod in 2014-T6 heat-treatable alloy, copper-magnesium based, for high-stress industrial parts like aircraft fittings. Heat treatment enhances strength for demanding applications, and the hollow cross-section places it under tariff item 7604.21.00.
2024-T3511 Hollow Aluminum Frame Profile
> This is a 2024-T3511 hollow profile, a classic heat-treatable alloy for aircraft skins and frames, copper-based with fatigue resistance. The hollow cross-section provides lightweight structures, and it classifies under tariff item 7604.21.00 as a hollow profile of aluminum alloys.
2219-T851 Hollow Aluminum Alloy Profile
> This is a 2219-T851 hollow profile for welding applications in aerospace, a heat-treatable copper alloy with excellent cryogenic properties. Used in tank structures, its hollow cross-section places it under tariff item 7604.21.00 as a hollow profile of aluminum alloys.
6061-T6 Aluminum Alloy Hollow Rail Profile
> This is an extruded hollow oval profile made from 6061-T6 aluminum alloy, a heat-treatable alloy with magnesium and silicon as principal alloying elements. It is used for balustrade and staircase rails, and its hollow cross-section qualifies it as a hollow profile under tariff item 7604.21.00.
6061-T6 Aluminum Hollow Profile Bar
> This is a hollow square profile bar made from 6061-T6 aluminum alloy, a heat-treatable industrial alloy with magnesium and silicon as principal alloying elements. It is used in structural applications like machinery frames, and its hollow cross-section qualifies it under tariff item 7604.21.00.
6063-T5 Aluminum Alloy Hollow Bar 2 inch OD
> This is a hollow round profile extruded from 6063-T5 aluminum alloy, with a 2-inch outside diameter, used for telescoping poles and furniture frames. Its hollow cross-section and alloy composition place it under tariff item 7604.21.00 as a hollow profile of aluminum alloys.