Chapter 72 covers raw materials for iron and steel smelting, primary products, and basic steel products, including pig iron, ferroalloys, scrap, ingots, semi-finished products (such as billets and slabs), as well as hot-rolled or cold-rolled plates, bars, sections, wire rods, etc. However, further processed iron and steel products (such as pipe fittings and structural parts) are classified under Chapter 73. This chapter is the core chapter for the steel trade and involves the circulation of global bulk commodities. Heading 7216 covers angles, shapes, and sections of iron or non-alloy steel, but excludes sheet piling, welded sections, and hollow drill steel. It specifically includes H-sections, I-sections, channel sections, angle sections, T-sections, etc., usually obtained by hot rolling, hot drawing, extrusion, or forging, and may also be further processed (such as drilling or coating), but must not have the character of articles of other headings. The first 2 digits, 72: indicates Chapter 72, iron and steel goods. The 3rd-4th digits, 16: indicates heading 7216, namely angles, shapes, and sections of iron or non-alloy steel. The 5th-6th digits, 32: under heading 7216, subheading 7216.32 specifically refers to T-sections that are hot-rolled, hot-drawn, or extruded, with a height of less than 80 mm. If the height is >= 80 mm, they are classified under 7216.40. This subheading distinguishes the processing method and the section height, and is key to classification. The goods are hot-rolled T-sections with a T-shaped cross-section and are made of non-alloy steel, meeting the description of heading 7216, 'angles, shapes, and sections.' Because they are hot-rolled and have a height of less than 80 mm, they are classified under subheading 7216.32. If they were alloy steel, they would be classified under 7228; if welded, under 7301; if cold-worked, under 7216.50.

Product name: The standard name of the declared commodity should be accurately described as 'hot-rolled T-section' or 'hot-rolled non-alloy steel T-section,' and colloquial names should be avoided. Material: Indicate the steel grade and main chemical composition, such as 'non-alloy steel, carbon content 0.15%,' to distinguish it from alloy steel. Processing method: Clearly state 'hot-rolled' (may additionally state 'hot-drawn' or 'extruded'), and it must not be cold-worked or welded. Cross-sectional shape: Describe as 'T-shaped cross-section' and provide a cross-sectional drawing or dimensions to distinguish it from angle sections, I-sections, etc. Section height: Declare the section height (mm) of the T-section, and it must be clearly stated whether it is less than 80 mm. Length: Declare fixed length or random length, which affects the customs value and declaration standards. Grade: Such as Q235B, SS400, and other applicable standard grades, to facilitate customs confirmation of the material. Product name: hot-rolled T-section; Material: non-alloy steel, grade Q235B, carbon 0.17%, manganese 0.45%; Processing method: hot-rolled; Cross-sectional shape: T-shaped; Section height: 75 mm; Length: 6000 mm; Quantity: 1000 kg; Origin: China. Misreporting T-sections with a section height >= 80 mm as 7216.32, when they should be classified under 7216.40. Confusing hot rolling with cold working; cold straightening after hot rolling is still classified as hot-rolled, but cold-drawn forming is classified under 7216.50. Ignoring alloying elements in the material; if alloying elements such as boron exceed the limit, classification should be under 7228 rather than 7216.

Core basis for classification: 1) The material is non-alloy steel; 2) The cross-section is T-shaped and belongs to sections; 3) The processing method is hot rolling; 4) The section height is less than 80 mm. At the same time, welded, cold-worked, and alloy steel cases must be excluded. According to the Import and Export Tariff and its notes, 7216.32 explicitly covers hot-rolled, hot-drawn, or extruded T-sections with a height of less than 80 mm. If the height is >= 80 mm, they are classified under 7216.40. 7216.40 Hot-rolled T-sections (height >= 80 mm): The section height is different; 7216.32 requires a height of less than 80 mm, while 7216.40 is for >= 80 mm, and precise measurement is required for classification. 7216.50 Cold-worked T-sections: The processing method is cold drawing, cold rolling, etc., rather than hot rolling; even if the cross-section is the same, they are classified under this code. 7228.70 Alloy steel T-sections: The material is alloy steel (such as containing chromium or nickel); only non-alloy steel is classified under 7216. 7301.20 Welded T-sections: Made by welding and assembly, belonging to welded sections and classified under 7301, rather than rolled sections. Is the material non-alloy steel? Is the processing method hot rolling? Is the section height less than 80 mm? Is the cross-section T-shaped? Are welded or cold-worked cases excluded?

How can I check the import tariff rate for 721632? You can use the official website of the General Administration of Customs of China or the 'Internet + Customs' platform, enter HS code 721632, and check the MFN rate, general rate, VAT, and consumption tax. Tariff rates vary depending on trade agreements and origin, so the latest tariff schedule should be used. What is the main difference between 721632 and 721640? Both are hot-rolled T-sections, and the difference lies in the section height: 721632 requires a height of less than 80 mm, while 721640 requires a height of >= 80 mm. Precise section height dimensions must be provided for classification. If the T-section is alloy steel, which code should it be classified under? It should be classified under heading 7228, and the specific subheading depends on the processing method and section height, such as 7228.70 for angles, shapes, and sections of alloy steel. The content of alloying elements must be declared. Are T-sections that have undergone cold straightening after hot rolling still classified under 721632? Yes. If only straightening, descaling, and other processing that does not affect the essential character are carried out after hot rolling, they are still classified as hot-rolled. However, if cold working such as cold drawing or cold rolling that changes the cross-section or properties is carried out, they are classified under 7216.50. How should the 'section height' be measured at the time of declaration? Section height refers to the total height of the vertical web of the T-section, measured vertically from the outer surface of the flange to the end of the web. Calipers should be used for measurement and records should be kept, as customs may inspect. Do coatings or platings on T-sections affect classification? If only anti-rust paint or zinc coating is applied, classification is generally not affected and they remain under 7216. However, if the coating gives them the character of articles of other headings (such as becoming structural parts), they may be classified under Chapter 73. Can imports of 721632 from ASEAN enjoy the agreement rate? An ASEAN Certificate of Origin (Form E) must be provided, and the product must comply with the China-ASEAN Free Trade Agreement rules of origin. The specific rate can be checked in the agreement rate table and is usually lower than the MFN rate. What are the consequences of failing to declare the 'section height' during customs declaration? It may lead to incorrect classification. If the actual height is >= 80 mm but declared as < 80 mm, it will constitute inaccurate declaration, and customs may require payment of the difference and impose a fine. It is recommended to declare truthfully and keep technical documents.