Chapter 73 covers articles of iron or steel, but excludes raw materials for iron and steel smelting, mineral products, and basic materials. This chapter includes tubes and pipes, hollow profiles, tube or pipe fittings, structures, containers, wire products, etc. 7306 is a specific tariff heading for welded circular cross-section steel pipes, applicable to industrial fields such as oil drilling, mechanical structures, and fluid transportation. Heading 7306 covers other tubes and pipes of circular cross-section (such as welded, riveted, or similarly closed), but excludes seamless steel pipes (7304) and cast iron pipes (7303). Specifically includes longitudinally or spirally welded pipes, electric resistance welded pipes, furnace welded pipes, etc., used for drilling, pipelines, structures, etc. Under 7306, there are multiple subheadings distinguished by use and material. The first 2 digits '73' represent the chapter of articles of iron or steel. The 3rd-4th digits '06' represent the heading for 'other tubes and pipes of circular cross-section', distinguished from 7304 seamless pipes and 7305 other circular cross-section pipes (such as large diameter). The 5th-6th digits '29' is the subheading for 'other welded pipes for drilling', specifically referring to welded steel pipes for drilling, excluding stainless steel or specific alloy steel pipes. This subheading includes casings and tubings for oil and gas drilling, but must conform to welding processes. The commodity is a steel pipe for drilling produced by welding process, not seamless pipe (7304) or cast iron pipe (7303). At the same time, it does not belong to other subheadings under 7306, such as stainless steel welded pipes (7306.11/19) or line pipes (7306.30, etc.), because it is explicitly used for drilling and is made of ordinary steel. Therefore, it is classified under 7306.29.

Product Name: The specific name of the declared commodity, which should include information such as use, material, and process, e.g., 'welded steel pipe for oil drilling' Material: The grade or chemical composition of the declared steel, such as carbon steel, alloy steel, etc., and indicate the steel grade Specification and Model: Includes outer diameter, wall thickness, length, and other dimensions, as well as model code Processing Technique: State that it is a welded pipe and indicate the welding method (such as straight seam welding, spiral welding) Use: Clearly state that it is used for drilling, such as oil and gas drilling, and indicate the specific use (casing, tubing, etc.) Brand: Manufacturer or brand name; if no brand, fill in 'None' Quantity and Unit: Declared quantity and unit of measurement, usually kilograms or pieces Product Name: Welded steel pipe for oil drilling (casing); Material: Carbon steel, API 5CT J55; Specification: Outer diameter 177.8mm, wall thickness 9.19mm, length 11.5m; Processing Technique: Straight seam electric resistance welding; Use: Oil drilling casing; Brand: Baosteel; Quantity: 50000 kilograms. Incorrectly reporting welded drilling pipe as seamless pipe (7304), leading to classification error Not indicating drilling use, possibly classified under other welded pipes (7306.30, etc.) Incomplete material information, such as not providing steel grade, affecting subheading determination

Core basis for classification: 1) Material is iron or steel; 2) Circular cross-section; 3) Manufactured by welding process; 4) Specifically used for drilling. All four conditions must be met simultaneously. If seamless pipe, classify under 7304; if cast iron pipe, classify under 7303; if stainless steel welded pipe, classify under 7306.11 or 7306.19; if ordinary welded pipe but not for drilling, classify under 7306.30, etc. 7304 Seamless steel pipe: Seamless pipes are perforated and rolled, without weld seams; welded pipes have weld seams. Seamless pipes for drilling are classified under 7304, welded pipes under 7306.29. 7306.11 Stainless steel welded pipe: Material is stainless steel, while 7306.29 is other alloy steel or carbon steel. If the drilling pipe is stainless steel, it should be classified under 7306.11. 7306.30 Other welded pipes: Used for pipelines, structures, and other non-drilling purposes. If the drilling pipe can also be used for other purposes, classification should be based on primary use. 7305 Other circular cross-section pipes: Refers to welded pipes with outer diameter greater than 406.4mm, usually used for pipelines. Drilling pipes generally have smaller outer diameters and are not classified here. Is it made of iron or steel? Is it of circular cross-section? Is it manufactured by welding process? Is it specifically used for drilling? Is it non-stainless steel material?

How to inquire about the import tax rate for 7306.29? You can inquire through the General Administration of Customs official website or the International Trade Single Window, enter HS code 73062900, and check the most-favored-nation tax rate, general tax rate, etc. Note that tax rates may change, subject to the latest announcement. How to distinguish between welded pipes for drilling and tubing (7304)? Mainly depends on the manufacturing process: welded pipes have weld seams, seamless pipes do not. However, tubing may be seamless or welded, and should be judged based on actual process and use. If welded and used for drilling, classify under 7306.29; if seamless, classify under 7304. What special documents are required for declaring drilling welded pipes? Usually requires material certificate, API 5CT certificate (if applicable), certificate of origin, packing list, invoice, etc. If used for oil drilling, a statement of use may also be required. If the drilling welded pipe is made of stainless steel, which code should it be classified under? Stainless steel welded pipes should be classified under 7306.11 (stainless steel welded pipes for oil and gas drilling) or 7306.19 (other stainless steel welded pipes). 7306.29 only applies to non-stainless steel drilling welded pipes. What is the main difference between 7306.29 and 7306.30? 7306.29 is specifically for drilling, while 7306.30 is for pipelines or other uses. If the steel pipe can be used for both drilling and pipelines, classification should be based on primary use or customer contract. How to simplify declaration for cross-border e-commerce sales of drilling welded pipes? You can entrust a customs broker and provide complete product name, material, specification, use, and other information. Note that small batches may be declared as samples or low-value goods, but accurate classification is still required. What is the export tax rebate rate for 7306.29? The export tax rebate rate needs to be checked in the latest rebate catalog. Usually, the rebate rate for welded steel pipes may be 9% or 13%, subject to the announcement of the State Taxation Administration. If the drilling welded pipe is galvanized, does it affect classification? Galvanization does not affect classification; it is still classified under 7306.29, but the surface treatment must be indicated during declaration, which may affect tax rates or regulatory conditions.