7178-T651 Hollow Aluminum Alloy Extrusion from China
7178-T651 hollow extrusion, heat-treatable high-strength alloy for structural aerospace use, zinc-magnesium-copper composition. Provides upper wing strength. HTS 7604.21.00.10 for note 7 heat-treatable hollow profiles.
Duty Rate — China → United States
36.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
Import Tips
• High-strength alloys need non-destructive testing reports for import
• Confirm cross-section is profile, not tubular for pressure
• Alloy must predominate Al per subheading note (b); no steel composites