Chapter 76 covers aluminum and articles thereof, including unwrought aluminum, aluminum powders, aluminum bars, rods and profiles, aluminum wire, aluminum plates, sheets and strip, aluminum tubes and tube fittings, aluminum structures, etc. This chapter does not include aluminum waste and scrap (except as provided in the notes to Chapter 76), aluminum tools, aluminum tableware and other specifically named articles. The core is to distinguish primary smelting products of aluminum from subsequently processed products. Heading 7608 covers aluminum tubes and tube fittings, including tubes of non-alloy aluminum and tubes of aluminum alloys. Aluminum tubes refer to hollow, closed cross-section products with a consistent cross-section along the entire length, produced by rolling, extrusion or drawing, which can be used for conveying fluids, structural support or heat exchange. Tube fittings such as joints, elbows, flanges, etc. are also classified under this heading. First 2 digits 76: Chapter 76, aluminum and articles thereof. Digits 3-4: 08: Heading 7608, aluminum tubes. Digits 5-6: 10: Subheading 7608.10, tubes of non-alloy aluminum. Non-alloy aluminum here refers to pure aluminum with an aluminum content of not less than 99% (which may contain trace amounts of other elements), as distinguished from tubes of aluminum alloys (7608.20). The subheading further distinguishes non-alloy from aluminum alloy for statistical and regulatory purposes. The product is a tube of non-alloy aluminum, which meets the definition of heading 7608 'aluminum tubes', and the material is non-alloy aluminum, so it is classified under 7608.10. If it were a tube of aluminum alloy, it would be classified under 7608.20; if it were an aluminum tube fitting, it would be classified under 7609; if it were an aluminum structure, it would be classified under 7610. Therefore, material and use are the key distinguishing factors.

Product Name: Declare the commodity name, which should accurately reflect the material and shape, such as 'non-alloy aluminum tube'. Material: Indicate the content of aluminum and alloying elements, such as 'non-alloy aluminum, aluminum content ≥99%'. Specifications and Model: Include dimensions such as outer diameter, wall thickness, length, e.g., 'outer diameter 20mm, wall thickness 1mm, length 3m'. Processing Technology: State the manufacturing method, such as 'extrusion molding', 'drawing', 'rolling', etc. Use: State the specific use, such as 'used for air conditioner condensers', 'building structural support'. State: Such as 'hollow tube', 'closed cross-section', 'consistent cross-section along entire length'. Brand: If there is a brand, it should be declared; if no brand, fill in 'none'. Model: The manufacturer's model or item number for easy identification. Customs declaration example: Product Name: Non-alloy aluminum tube Material: Non-alloy aluminum, aluminum content 99.5% Specifications and Model: Outer diameter 25mm, wall thickness 1.5mm, length 6m Processing Technology: Extrusion molding Use: Used for air conditioner condensers State: Hollow tube, closed cross-section Brand: XX Model: AL-2024 HS Code: 7608100000 Mistakenly declaring non-alloy aluminum tubes as aluminum alloy tubes, resulting in incorrect coding. Incomplete specifications and model, such as missing wall thickness or outer diameter, affecting classification. Use description too broad, without providing specific application scenarios.

Core basis for classification: 1) Whether the material is non-alloy aluminum (aluminum content ≥99%); 2) Whether it is a hollow closed cross-section tubular product; 3) Whether it meets the definition of heading 7608 'aluminum tubes'. It is necessary to combine the Explanatory Notes to the Tariff and classification decisions. The difference between non-alloy aluminum tubes and aluminum alloy tubes lies in the content of alloying elements; in non-alloy aluminum, the total of other elements does not exceed 1%. 760820 Tubes of aluminum alloys: The material is aluminum alloy, with alloying element content exceeding 1%, whereas 760810 is non-alloy aluminum. 760900 Aluminum tube fittings: Fittings used to connect aluminum tubes, such as joints, elbows, not the tube itself. 761090 Other aluminum structures: Aluminum structures such as door and window frames, not tubular products. 760421 Hollow profiles of aluminum alloys: Hollow profiles have a cross-section that is not circular or not consistent along the entire length, whereas aluminum tubes have a consistent cross-section. Is the material non-alloy aluminum (aluminum content ≥99%)? Is the product a hollow closed cross-section? Is the cross-section consistent along the entire length? Is it used for conveying fluids or structural support? Does it not belong to tube fittings or structures?

How to find the HS code for non-alloy aluminum tubes? First confirm that the material is non-alloy aluminum (aluminum content ≥99%), then confirm that the product is a hollow closed cross-section tubular product with a consistent cross-section along the entire length. Consult Chapter 76 of the Tariff, heading 7608, subheading 7608.10 is for non-alloy aluminum tubes. You may refer to customs classification decisions or consult a professional customs broker. How to distinguish between non-alloy aluminum tubes and aluminum alloy tubes when declaring? Mainly look at the material composition. Non-alloy aluminum tubes have an aluminum content of not less than 99%, with the total of other elements not exceeding 1%; aluminum alloy tubes contain a certain amount of alloying elements such as copper, magnesium, silicon, etc., with content exceeding 1%. When declaring, material certificates or test reports are required. If an aluminum tube is used for structural support, is it still classified under 7608? Yes, as long as it meets the definition of an aluminum tube (hollow closed cross-section, consistent cross-section along the entire length), regardless of whether the use is for conveying fluids or structural support, it is classified under 7608. However, if it is processed into a specific structural part (such as door and window frames), it may be classified under 7610. What are the common errors in the declaration elements of non-alloy aluminum tubes? Common errors include: material only written as 'aluminum' without indicating non-alloy; specifications and model missing wall thickness or outer diameter; use written as 'general purpose' which is too broad; processing technology not specifically stated. These will affect classification and document review. How to distinguish between aluminum tubes and aluminum tube fittings? Aluminum tubes are the tubular product itself, while tube fittings are parts used to connect, seal or control pipelines, such as joints, elbows, flanges, etc. Fittings are classified under heading 7609, tubes under 7608. When declaring, judgment should be based on product function. What regulatory conditions should be noted when importing non-alloy aluminum tubes? Attention should be paid to customs regulatory conditions, such as whether anti-dumping or countervailing measures are involved, whether a certificate of origin is required, etc. Some aluminum products may involve tariff quotas or license management. For details, consult the Customs Import and Export Tariff and customs announcements. If the cross-section of an aluminum tube is not circular, can it still be classified under 7608? Yes, as long as the cross-section is consistent along the entire length and is a hollow closed cross-section, regardless of whether it is circular, square, rectangular or other shapes, it is classified under 7608. However, if it is a hollow profile (with varying cross-section or not consistent along the entire length), it may be classified under 7604. For cross-border e-commerce selling aluminum tubes, how to determine the HS code? Cross-border e-commerce needs to classify according to the actual material and shape of the product. Non-alloy aluminum tubes are classified under 7608.10. It is recommended to use the classification query system of the General Administration of Customs or consult a professional agency to ensure accurate coding and avoid customs clearance delays.