7075-T6 Aluminum Alloy Hollow Structural Section
High-strength hollow D-shaped profile in 7075-T6 alloy for aerospace and defense structures. HTS 7604.21.00 covers this extruded hollow profile of aluminum alloys.
Import Duty Rates by Country of Origin
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 rolled into plate form instead of extruded
Manufacturing process (rolled vs extruded) determines chapter placement.
If containing ≥5% other metals and further worked
Complex alloy compositions or processing move to other aluminum articles.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include aerospace-grade certifications (e.g
• AMS specs) and traceability docs
• ITAR/EAR export controls may apply; ensure proper licensing for defense-related imports
• Separate from solid 7075 bars under 7604.21.30 to maintain hollow classification
Related Products under HTS 7604.21.00
Aluminum Alloy Square Tube 2x2 inch
A hollow square profile made from aluminum alloy, typically used in structural frameworks and machine guards. It qualifies under HTS 7604.21.00 as a hollow profile of aluminum alloys, featuring a uniform wall thickness and extruded construction for strength.
Aluminum Alloy Round Pipe 4 inch Diameter
Extruded hollow round profile from aluminum alloy, ideal for fluid conveyance or structural pillars in construction. Classified under 7604.21.00 due to its hollow circular cross-section and alloy composition predominated by aluminum.
Aluminum Alloy Rectangular Hollow Section 3x1.5 inch
Hollow rectangular profile extruded from aluminum alloy, commonly used in architectural facades and handrails. Falls under HTS 7604.21.00 as it is a basic extruded hollow profile of alloyed aluminum.
6063-T5 Aluminum Alloy Hollow Bar 2 inch OD
Hollow round profile in 6063-T5 aluminum alloy, used for telescoping poles and furniture frames. HTS 7604.21.00 applies to this extruded alloy hollow profile with precise tolerances.
Aluminum Alloy Telescopic Tube Profile
Hollow cylindrical profile designed for sliding fit in telescopic applications like antenna masts. Classified in 7604.21.00 for its basic extruded hollow alloy form prior to assembly.
Aluminum Alloy HVAC Duct Profile
Hollow rectangular profile extruded for HVAC ducting systems in commercial buildings. Qualifies under 7604.21.00 as an aluminum alloy hollow profile used in construction.