Chapter 72 covers iron and steel smelting and preliminary processed products, including pig iron, ferroalloys, waste and scrap, ingots, semi-finished products (such as billets and slabs), as well as hot-rolled or cold-rolled flat-rolled products, bars, angles, sections, etc. This chapter does not include articles of iron or steel (Chapter 73) or specific machinery or vehicles (Chapters 84/87). The core is basic iron and steel materials, classified by composition, shape, and processing state. Heading 7216 covers angles, shapes and sections of iron or non-alloy steel, but excludes products that have been further processed (such as cold-drawn or cold-rolled) or have specific cross-sectional shapes. It includes products that are hot-rolled, hot-drawn, extruded or forged without further processing, as well as products that have only undergone simple treatments such as straightening or cutting to length. Common examples include angle steel, I-beams, channel steel, H-beams, etc. First 2 digits 72: represents the iron and steel chapter, covering iron and steel materials and their preliminary products. Digits 3-4: 16 represents heading 7216, i.e., angles, shapes and sections of iron or non-alloy steel. Digits 5-6: 31 represents subheading 721631, specifically referring to angles that are hot-rolled, hot-drawn or extruded without further processing (other than straightening or cutting to length). Among these, '31' subdivides the processing method: hot-rolled/hot-drawn/extruded, rather than cold-worked or further processed. The overall code 721631 precisely points to hot-rolled angles. This commodity is hot-rolled angle steel, belonging to angles of iron or non-alloy steel, with a processing method of hot rolling and no further processing, which conforms to the description of heading 7216 and subheading 721631. If it were cold-rolled angle steel, it should be classified under 7216.50 or 7216.60, etc.; if it were stainless steel angle steel, it would be classified under 7222. Therefore, the material (non-alloy steel), shape (angle steel), and processing method (hot-rolled) together determine classification under 721631.

Product Name: Declared commodity name, such as 'hot-rolled angle steel' or 'angle steel', which must be consistent with the actual goods. Material: Indicate the type of steel, such as 'non-alloy steel', and provide chemical composition if necessary. Shape: Describe the cross-sectional shape, such as 'angle steel', and may indicate equal or unequal legs. Processing Method: Indicate 'hot-rolled' and whether further processed (such as straightening or cutting to length). Specifications and Dimensions: Provide cross-sectional dimensions (such as leg width × leg width × thickness) and length. Grade: Such as Q235B, etc., declared according to standard grades to facilitate material confirmation. Use: Briefly describe the main use, such as building structures, machinery manufacturing, etc. Standard: Applicable standard, such as GB/T 706, ASTM A36, etc. Customs declaration example: Product Name: Hot-rolled angle steel Material: Non-alloy steel Shape: Equal angle steel Processing Method: Hot-rolled, without further processing Specifications: 50mm×50mm×5mm×6000mm Grade: Q235B Use: For building structures Standard: GB/T 706-2016 HS Code: 72163100 Mistakenly classifying hot-rolled angle steel under 721650 (cold-rolled angle steel), ignoring the difference in processing method. Not indicating 'non-alloy steel'; if it contains alloying elements, it may be classified under 7228. Incomplete specifications and dimensions, leading to customs questioning the classification. Confusing angle steel with sections, failing to accurately describe the cross-sectional shape.

Core basis for classification: 1) Material is iron or non-alloy steel; 2) Cross-section is angular (L-shaped); 3) Processing method is hot-rolled, hot-drawn or extruded, and not further processed (other than straightening or cutting to length). All three are indispensable. If it is alloy steel, it is classified under 7228; if stainless steel, under 7222; if cold-worked, under 7216.50 or 7216.60; if welded angle steel, under 7308. 721650 Cold-rolled angle steel: Processing method is cold-rolled (cold-drawn, cold-formed), whereas 721631 is hot-rolled. Cold-rolled angle steel has a smoother surface and higher dimensional precision, but is classified differently. 722240 Stainless steel angle steel: Material is stainless steel, whereas 721631 is non-alloy steel. Stainless steel angle steel is classified under 7222, and material composition must be verified. 722870 Alloy steel angle steel: Material is alloy steel (such as containing chromium, nickel, etc.), classified under 7228. Only non-alloy steel angle steel is classified under 7216. 730890 Welded angle steel: Welded angle steel is an article of iron or steel, classified under 7308. 721631 angle steel is integrally formed by rolling, not welded. 721699 Other angles and sections: 721699 covers other angles and sections not elsewhere specified, whereas 721631 specifically refers to hot-rolled angles. If the angle steel has undergone further processing (such as drilling or plastic coating), it may be classified under 721699. Is the material non-alloy steel? Is the cross-section angular (L-shaped)? Is the processing method hot-rolled? Has it not undergone further processing (other than straightening or cutting to length)? Are the specifications and dimensions fully declared?

How do I look up the HS code for hot-rolled angle steel? First confirm that the material is non-alloy steel, the cross-section is angular, and the processing method is hot-rolled without further processing, then consult Chapter 72 of the Import and Export Tariff, under heading 7216, subheading 721631. You may also use customs advance classification rulings or consult a professional customs broker. What is the difference in HS codes between hot-rolled angle steel and cold-rolled angle steel? Hot-rolled angle steel is classified under 721631, and cold-rolled angle steel under 721650. The difference lies in the processing method: hot rolling is performed at high temperature, and the surface has oxide scale; cold rolling is performed at room temperature, and the surface is smooth with precise dimensions. Proof of processing technology must be provided for classification. What elements are required to declare hot-rolled angle steel? Product name, material, shape, processing method, specifications and dimensions, grade, use, standard, etc. are required. The material must be specified as non-alloy steel, the processing method must indicate hot-rolled and whether further processed, and the specifications must include leg width, thickness, and length. How do I check the tariff rate for hot-rolled angle steel? Tariff rates change with national policies. The latest rates can be checked through the General Administration of Customs website, China International Trade Single Window, or the Import and Export Tariff. Generally, attention should be paid to the MFN rate, general rate, VAT, and possible anti-dumping duties. If hot-rolled angle steel has been drilled, can it still be classified under 721631? No. Drilling is further processing, which exceeds the scope of hot-rolled angle steel, and it should be classified under 721699 (other angles and sections) or under other headings according to use. A description of the processing steps must be provided for classification. What documents are required to import hot-rolled angle steel? Usually, a contract, invoice, packing list, bill of lading, certificate of origin, material certificate, specification list, etc. are required. If anti-dumping is involved, manufacturer certificates, etc. may also be required. Specific requirements are subject to customs. Are the HS codes for hot-rolled angle steel and H-beams the same? No. Hot-rolled angle steel is classified under 721631, while H-beams are sections classified under 721633 (hot-rolled H-beams). The cross-sectional shapes are different, and the cross-section must be accurately described for classification. How do I determine whether angle steel has undergone further processing? Further processing includes cold working, coating/plating, drilling, punching, bending, welding, etc. If only straightening, cutting to length, or cutting has been performed, it is still considered not further processed and can be classified under 721631. Processing records should be retained for customs verification.