Chapter 72 covers the full range of steel products, including ingots, billets, bars, rods, wire, plates, strips, tubes, etc., and is the most important chapter for metal materials in the HS. This chapter divides headings by smelting, processing form, and composition, arranged progressively from raw materials to finished products. 7215 is located at the end of the bar/rod category of headings and specifically deals with other bars and rods of iron or non-alloy steel not elsewhere specified, serving as the residual heading for bar/rod classification. Heading 7215 covers other bars and rods of iron or non-alloy steel, i.e., bars and rods not named in 7213 (hot-rolled bars and rods) or 7214 (forged, hot-rolled, or extruded bars and rods). It mainly includes cold-worked (cold-drawn, cold-rolled, cold-finished) bars and rods, as well as bars and rods that have undergone further processing (such as turning or grinding). However, it excludes products that have already acquired the characteristics of other headings, such as wire, tubes, hollow drill steel, etc. Code 721590 has 6 digits. The first 2 digits 72 represent Chapter 72 iron and steel, covering all iron and steel materials; digits 3-4, 15, represent heading 7215, referring to other bars and rods of iron or non-alloy steel, distinguished from 7213 and 7214; digits 5-6, 90, represent subheading 721590, i.e., other cold-worked bars and rods, the residual subheading under 7215, covering cold-worked bars and rods not named in 721510 (cold-worked bars and rods of free-cutting steel). This commodity is a cold-worked bar or rod and is not free-cutting steel, so it is classified under 721590. If it were a hot-rolled bar or rod, it should be classified under 7213 or 7214; if it were a cold-worked bar or rod of free-cutting steel, it should be classified under 721510; if it were a stainless steel bar or rod, it should be classified under 7222; if it were an alloy steel bar or rod, it should be classified under 7228. 721590 is the dedicated code for cold-worked non-free-cutting non-alloy steel bars and rods.

Product name: The Chinese and English names of the declared commodity, which should accurately reflect the product's attributes, such as "cold-drawn round steel" or "cold-rolled hexagonal bar." Material: Fill in the steel grade and main chemical composition, such as "non-alloy steel, carbon content 0.45%" or "free-cutting steel, sulfur content 0.08%." Processing method: Indicate the cold-working method, such as "cold-drawn," "cold-rolled," or "cold-finished," and whether subsequent turning or grinding has been performed. Shape: Describe the cross-sectional shape, such as round, square, hexagonal, flat, etc., and indicate that it is solid rather than hollow. Specifications and dimensions: Declare the cross-sectional dimensions (diameter, side length, thickness, etc.) and length, in millimeters. Grade: Fill in the specific steel grade, such as Q235, 45#, Y12, etc., to facilitate verification of classification. Use: Explain the final use of the bar or rod, such as "used to manufacture shaft parts" or "used for machining." Product name: cold-drawn round steel; Material: non-alloy steel, carbon content 0.45%, no free-cutting elements; Processing method: cold-drawn, without turning or grinding; Shape: round solid; Specifications: diameter 20mm, length 3000mm; Grade: 45#; Use: used to manufacture transmission shafts. Mistakenly classifying hot-rolled, pickled, and straightened bars and rods under 721590, when they should actually be classified under 7213 or 7214. Cold-worked bars and rods of free-cutting steel should be classified under 721510; if the content of sulfur, lead, etc. is ignored, they may be mistakenly classified under 721590. Although hollow drill steel is cold-worked, it should be classified under 7228 or 7304 and cannot be classified as solid bar under 721590. Cold-worked stainless steel bars and rods should be classified under 7222; mistakenly classifying them as non-alloy steel under 721590 will lead to error.

Core basis for classification: first confirm that the material is iron or non-alloy steel (not stainless steel, not alloy steel); second confirm that the processing method is cold working (cold drawing, cold rolling, cold finishing, etc.) and that it is not named in 7213 or 7214; third confirm that it is not free-cutting steel; finally confirm that the cross-section is solid rather than hollow and that it does not belong to other headings such as wire or tubes. At the same time, it is necessary to check whether it has undergone further processing. For example, turning or grinding does not affect classification under 721590, but if processed into specific articles, the classification may change. 721510 Cold-worked bars and rods of free-cutting steel: 721510 specifically refers to cold-worked bars and rods of free-cutting steel (containing free-cutting elements such as sulfur and lead), while 721590 covers cold-worked bars and rods of non-free-cutting steel. The key difference is whether the material contains free-cutting elements. 7214 Other hot-rolled or forged bars and rods: 7214 covers hot-rolled, forged, or extruded bars and rods that have not been cold-worked. If the bar or rod is only hot-rolled and then straightened, it should be classified under 7214; if subsequently cold-drawn, it is classified under 7215. 7222 Stainless steel bars and rods: 7222 covers stainless steel bars and rods, whether cold-worked or hot-worked. The difference lies in whether the material is stainless steel (containing chromium >= 10.5%). Cold-worked bars and rods of non-alloy steel are classified under 7215. 7228 Other alloy steel bars and rods: 7228 covers alloy steel bars and rods (not stainless steel), including cold-worked ones. The difference lies in whether the material is alloy steel (containing alloying elements beyond the limits for non-alloy steel). Non-alloy steel is classified under 7215. Is the material non-alloy steel and not free-cutting steel? Is the processing method cold working (cold drawing, cold rolling, etc.)? Is the cross-section solid rather than hollow? Is it not named in 7213 or 7214? Does it not belong to other headings such as wire, tubes, or hollow drill steel?

How can it be determined whether a bar or rod belongs to "cold working"? Cold working refers to changing the shape of steel at room temperature through drawing, rolling, finishing, and other processes, usually resulting in a smooth surface and high dimensional precision. If the bar or rod is only straightened or pickled after hot rolling without cold deformation, it does not belong to cold working and should be classified under 7213 or 7214. Why can't cold-worked bars and rods of free-cutting steel be classified under 721590? HS code 721510 is specifically established for cold-worked bars and rods of free-cutting steel. Free-cutting steel contains elements such as sulfur and lead to improve machinability. If classified under 721590, it would result in an incorrect subheading, affecting tariffs and statistics. Therefore, it is necessary to first test whether the material contains free-cutting elements. Does the classification change after cold-drawn bars and rods undergo turning? If cold-drawn bars and rods only undergo further processing such as turning or grinding but do not become specific articles, they are still classified under 721590. However, if processed into articles such as bolts or pins, they should be classified under corresponding headings such as 7318. Can cold-worked stainless steel bars and rods be classified under 721590? No. Stainless steel bars and rods, whether cold-worked or hot-worked, are classified under 7222. 721590 applies only to cold-worked bars and rods of non-alloy steel (not stainless steel). When classifying, it is necessary to first confirm whether the material is stainless steel. Under which code should hollow drill steel be classified? Hollow drill steel is a hollow bar and, even if cold-worked, is not classified under 721590. Depending on the material, hollow drill steel of non-alloy steel is classified under 7228 or 7304, and hollow drill steel of alloy steel is classified under 7228. It must be determined according to the specific material and use. How should "bars and rods" be distinguished from "wire" at declaration? The difference between bars/rods and wire lies in cross-sectional dimensions and delivery condition. Generally, wire is delivered in coils and has a smaller diameter (generally less than or equal to 13mm), while bars/rods are delivered in straight lengths and have a larger diameter. In HS codes, wire is classified under 7217, and bars/rods are classified under 7213-7215, 7222, etc. How can the tariff rate for 721590 be checked? The tariff rate must be determined according to the importing country and country of origin. It can be checked in the importing country's customs tariff, such as China Customs' Import and Export Tariff, or through the WTO tariff database. At the same time, preferential rates under free trade agreements, such as RCEP, should also be considered. Rates may change, so it is recommended to rely on the latest official data. If cold-worked bars and rods are used for rerolling, is the classification different? If cold-worked bars and rods are used for rerolling, they still fall within the scope of bars and rods and are classified under 721590. However, if they are used as raw materials for further rolling into other shapes, they may be classified according to the final product. Classification is based on the condition at the time of declaration.