HS Code for Aluminum hollow bar

Aluminum hollow bars, specifically those made from aluminum alloys, are classified under HS code 7604.21. This subheading is part of heading 7604, which covers aluminum bars, rods, and profiles. The classification is determined by the product's cross-sectional shape and its material composition. A \"hollow profile\" is defined in the Chapter 76 notes as a product that has a cross-section other than that of tubes or pipes, or which does not meet the strict definition of tubes/pipes (which require a uniform wall thickness and a single closed void). Aluminum hollow bars are often used in machining and structural applications where the strength-to-weight ratio of an alloy is required. The classification under 7604.21 specifically denotes that the product is an alloyed aluminum hollow profile. This distinction is critical because non-alloyed aluminum profiles fall under a different subheading (7604.10). The manufacturing process, usually extrusion, results in a product that is more complex than a simple bar but does not quite meet the technical definition of a pipe used for fluid transport.

Products Included

• Extruded aluminum alloy hollow profiles
• Square aluminum hollow sections
• Rectangular aluminum hollow bars
• Custom-shaped alloyed hollow extrusions
• Architectural hollow profiles

Common Misclassification

Aluminum hollow bars are frequently confused with HS code 7608.20, which covers aluminum alloy tubes and pipes. The distinction lies in the uniformity of the wall thickness and the cross-section; tubes (7608) must have a uniform wall thickness, whereas hollow profiles (7604) may have varying thicknesses or complex internal geometries. Misclassifying these as solid bars under 7604.29 is also common but incorrect if the item is hollow.

FAQ

What is the HS code for aluminum hollow bar?

The HS code for alloyed aluminum hollow bars or profiles is 7604.21.

What is the difference between 7604 and 7608?

Heading 7604 is for profiles (including hollow ones with non-uniform walls), while 7608 is strictly for tubes and pipes with uniform wall thickness and a consistent cross-section.