Chapter 73 covers articles of iron or steel, including seamless pipes, welded pipes, hollow profiles, pipe fittings, steel structures, iron wire products, etc. This chapter is based on iron and steel materials, and various industrial and civil products made through casting, forging, welding, cold bending and other processes, but excludes mechanical appliances of iron or steel (Chapter 84), vehicles (Chapter 87), etc. Heading 7306 covers other tubes, pipes and hollow profiles of iron or steel, such as seamless pipes, welded pipes (including cold-drawn, cold-rolled), riveted pipes, etc., but excludes cast iron pipes (7303), seamless pipes (7304), pipes for oil and gas drilling (7305) and pipe fittings (7307). This heading specifically refers to pipes made by welding processes. The first 2 digits 73 represent articles of iron or steel; digits 3-4, 06, represent other tubes, pipes and hollow profiles of iron or steel, specifically including welded pipes, riveted pipes, etc.; digits 5-6, 40, is a subheading further limited to cold-rolled welded pipes, i.e., welded pipes made through cold-rolling processes (cold-drawing or cold-rolling), distinguished from other welded pipes (such as hot-rolled welded pipes). This commodity is a cold-rolled welded pipe, which is a type of welded pipe and has undergone cold-rolling processing, therefore classified under 7306.40. If it were a seamless pipe, it would be classified under 7304; if it were a hot-rolled welded pipe, it would be classified under 7306.30; if it were a pipe fitting, it would be classified under 7307.
Chapter
Chapter 73 covers articles of iron or steel, including seamless pipes, welded pipes, hollow profiles, pipe fittings, steel structures, iron wire products, etc. This chapter is based on iron and steel materials, and various industrial and civil products made through casting, forging, welding, cold bending and other processes, but excludes mechanical appliances of iron or steel (Chapter 84), vehicles (Chapter 87), etc.
Heading
Heading 7306 covers other tubes, pipes and hollow profiles of iron or steel, such as seamless pipes, welded pipes (including cold-drawn, cold-rolled), riveted pipes, etc., but excludes cast iron pipes (7303), seamless pipes (7304), pipes for oil and gas drilling (7305) and pipe fittings (7307). This heading specifically refers to pipes made by welding processes.
Digit Breakdown
The first 2 digits 73 represent articles of iron or steel; digits 3-4, 06, represent other tubes, pipes and hollow profiles of iron or steel, specifically including welded pipes, riveted pipes, etc.; digits 5-6, 40, is a subheading further limited to cold-rolled welded pipes, i.e., welded pipes made through cold-rolling processes (cold-drawing or cold-rolling), distinguished from other welded pipes (such as hot-rolled welded pipes).
Classification Basis
This commodity is a cold-rolled welded pipe, which is a type of welded pipe and has undergone cold-rolling processing, therefore classified under 7306.40. If it were a seamless pipe, it would be classified under 7304; if it were a hot-rolled welded pipe, it would be classified under 7306.30; if it were a pipe fitting, it would be classified under 7307.
📝 Declaration Elements
Product Name: The specific name of the declared commodity, which should be consistent with the actual goods, such as "cold-rolled welded steel pipe". Material: Indicate the type of iron or steel, such as "carbon steel", "stainless steel", etc. Stainless steel requires the grade to be specified. Specifications and Model: Including outer diameter, wall thickness, length and other dimensions, as well as grade and standard number. Processing Technology: Describe the welding method (such as high-frequency welding, submerged arc welding) and subsequent cold-rolling process. Use: Such as "for structural use", "for fluid conveyance", etc., which affects classification and regulatory conditions. Brand: If there is a brand, the brand name must be declared; if no brand, fill in "none". Model: The model assigned by the manufacturer to distinguish specific products. Product Name: Cold-rolled welded steel pipe; Material: Carbon steel Q235B; Specifications: Outer diameter 50mm, wall thickness 2mm, length 6m; Processing Technology: High-frequency welding followed by cold-rolling; Use: For structural use; Brand: None; Model: None. Mistakenly classifying cold-rolled welded pipes as hot-rolled welded pipes (7306.30). Neglecting the cold-rolling process and only declaring as welded pipe. Failing to provide material grade, affecting classification and customs valuation.
Product Name
The specific name of the declared commodity, which should be consistent with the actual goods, such as "cold-rolled welded steel pipe".
⚠️ Misdeclared as "seamless pipe" or "hot-rolled welded pipe".
Material
Indicate the type of iron or steel, such as "carbon steel", "stainless steel", etc. Stainless steel requires the grade to be specified.
⚠️ Only writing "steel" without specific description.
Specifications and Model
Including outer diameter, wall thickness, length and other dimensions, as well as grade and standard number.
⚠️ Omitting wall thickness or outer diameter.
Processing Technology
Describe the welding method (such as high-frequency welding, submerged arc welding) and subsequent cold-rolling process.
⚠️ Failing to indicate cold-rolling, resulting in classification errors.
Use
Such as "for structural use", "for fluid conveyance", etc., which affects classification and regulatory conditions.
⚠️ Use description too broad.
Brand
If there is a brand, the brand name must be declared; if no brand, fill in "none".
⚠️ Neglecting brand declaration.
Model
The model assigned by the manufacturer to distinguish specific products.
Mistakenly classifying cold-rolled welded pipes as hot-rolled welded pipes (7306.30).
Neglecting the cold-rolling process and only declaring as welded pipe.
Failing to provide material grade, affecting classification and customs valuation.
🎯 Classification Logic
The core basis for classification is: 1. Material is iron or steel; 2. The pipe is made by welding process; 3. It has undergone cold-rolling processing (cold-drawing or cold-rolling); 4. It is not a seamless pipe, not a cast iron pipe, not a pipe fitting. Reference should also be made to the Import and Export Tariff and national subheading notes. 7304 Seamless pipes: Seamless pipes are made by piercing and rolling, with no weld seam; cold-rolled welded pipes have a weld seam and have undergone cold-rolling. 7306.30 Hot-rolled welded pipes: Hot-rolled welded pipes are only hot-rolled after welding, without cold-rolling; cold-rolled welded pipes have undergone cold-rolling, with higher dimensional precision. 7307 Pipe fittings: Pipe fittings are connecting parts for pipes, such as flanges, elbows; cold-rolled welded pipes are the pipe itself. 7305 Pipes for oil and gas drilling: 7305 is specifically for oil and gas drilling, including seamless and welded pipes; cold-rolled welded pipes are not used for drilling. Is it made of iron or steel? Is it a welded pipe? Has it undergone cold-rolling processing? Is it used for structural or fluid conveyance purposes? Is it not a seamless pipe, not a pipe fitting?
Basis
The core basis for classification is: 1. Material is iron or steel; 2. The pipe is made by welding process; 3. It has undergone cold-rolling processing (cold-drawing or cold-rolling); 4. It is not a seamless pipe, not a cast iron pipe, not a pipe fitting. Reference should also be made to the Import and Export Tariff and national subheading notes.
Confused Codes：
7304 - Seamless pipes
Seamless pipes are made by piercing and rolling, with no weld seam; cold-rolled welded pipes have a weld seam and have undergone cold-rolling.
7306.30 - Hot-rolled welded pipes
Hot-rolled welded pipes are only hot-rolled after welding, without cold-rolling; cold-rolled welded pipes have undergone cold-rolling, with higher dimensional precision.
7307 - Pipe fittings
Pipe fittings are connecting parts for pipes, such as flanges, elbows; cold-rolled welded pipes are the pipe itself.
7305 - Pipes for oil and gas drilling
7305 is specifically for oil and gas drilling, including seamless and welded pipes; cold-rolled welded pipes are not used for drilling.
Self-Check：
✓ Is it made of iron or steel?
✓ Is it a welded pipe?
✓ Has it undergone cold-rolling processing?
✓ Is it used for structural or fluid conveyance purposes?
✓ Is it not a seamless pipe, not a pipe fitting?
❓ FAQ
How to distinguish cold-rolled welded pipes from hot-rolled welded pipes? Cold-rolled welded pipes are cold-rolled (cold-drawn) after welding, with a smooth surface and high dimensional precision; hot-rolled welded pipes are directly hot-rolled after welding, with oxide scale on the surface and lower dimensional precision. For classification, cold-rolled welded pipes are classified under 7306.40, and hot-rolled welded pipes under 7306.30. What are the main uses of cold-rolled welded pipes? Mainly used in building structures, machinery manufacturing, fluid conveyance, automobile manufacturing and other fields. Due to their precise dimensions and good surface quality, they are often used in precision machinery and hydraulic systems. Is a material certificate required for declaration? Yes, it is recommended to provide a material certificate or test report to prove the type and grade of iron or steel, facilitating customs classification and valuation. If cold-rolled welded pipes are used for oil and gas, are they classified under 7305? 7305 only applies to pipes for oil and gas drilling, such as casing and tubing. If cold-rolled welded pipes are used for drilling, they must meet the specific requirements of 7305; otherwise, they are still classified under 7306.40. How to distinguish cold-rolled welded pipes from seamless pipes? Seamless pipes are made by piercing and rolling, with no weld seam; cold-rolled welded pipes have a weld seam, which can be detected by visual inspection or flaw detection. For classification, seamless pipes are classified under 7304, and cold-rolled welded pipes under 7306.40. What regulatory conditions are required for importing cold-rolled welded pipes? Regulatory conditions vary by country/region, typically requiring certificate of origin, quality inspection certificate, etc. For specifics, consult the Customs Import and Export Tariff of the People's Republic of China and General Administration of Customs announcements. How to check the tax rate for cold-rolled welded pipes? Tax rates are adjusted with policy changes. You can check the latest rates through the General Administration of Customs website, electronic port, or by consulting a customs broker. It is recommended to rely on the customs system at the time of actual declaration. If cold-rolled welded pipes are galvanized, does the classification change? Galvanizing is a surface treatment that does not change the essential characteristics, and they remain classified under 7306.40. However, if after galvanizing they become other products (such as galvanized pipe fittings), they may be classified under other headings.
Q: How to distinguish cold-rolled welded pipes from hot-rolled welded pipes?
A: Cold-rolled welded pipes are cold-rolled (cold-drawn) after welding, with a smooth surface and high dimensional precision; hot-rolled welded pipes are directly hot-rolled after welding, with oxide scale on the surface and lower dimensional precision. For classification, cold-rolled welded pipes are classified under 7306.40, and hot-rolled welded pipes under 7306.30.
Q: What are the main uses of cold-rolled welded pipes?
A: Mainly used in building structures, machinery manufacturing, fluid conveyance, automobile manufacturing and other fields. Due to their precise dimensions and good surface quality, they are often used in precision machinery and hydraulic systems.
Q: Is a material certificate required for declaration?
A: Yes, it is recommended to provide a material certificate or test report to prove the type and grade of iron or steel, facilitating customs classification and valuation.
Q: If cold-rolled welded pipes are used for oil and gas, are they classified under 7305?
A: 7305 only applies to pipes for oil and gas drilling, such as casing and tubing. If cold-rolled welded pipes are used for drilling, they must meet the specific requirements of 7305; otherwise, they are still classified under 7306.40.
Q: How to distinguish cold-rolled welded pipes from seamless pipes?
A: Seamless pipes are made by piercing and rolling, with no weld seam; cold-rolled welded pipes have a weld seam, which can be detected by visual inspection or flaw detection. For classification, seamless pipes are classified under 7304, and cold-rolled welded pipes under 7306.40.
Q: What regulatory conditions are required for importing cold-rolled welded pipes?
A: Regulatory conditions vary by country/region, typically requiring certificate of origin, quality inspection certificate, etc. For specifics, consult the Customs Import and Export Tariff of the People's Republic of China and General Administration of Customs announcements.
Q: How to check the tax rate for cold-rolled welded pipes?
A: Tax rates are adjusted with policy changes. You can check the latest rates through the General Administration of Customs website, electronic port, or by consulting a customs broker. It is recommended to rely on the customs system at the time of actual declaration.
Q: If cold-rolled welded pipes are galvanized, does the classification change?
A: Galvanizing is a surface treatment that does not change the essential characteristics, and they remain classified under 7306.40. However, if after galvanizing they become other products (such as galvanized pipe fittings), they may be classified under other headings.
⚠️ Disclaimer: HS code classification, declaration elements, tariff rates and regulatory conditions on this page are for reference only and do not constitute legal advice on customs classification. Tariff rates and regulations are subject to change; the latest announcements from the General Administration of Customs and on-site determinations shall prevail. Please consult professional customs brokers or customs authorities before import/export.