Chapter 73 covers articles of iron or steel, including steel pipes, hollow profiles, steel structures, containers, cables, etc. This chapter ranges from 7301 to 7326, involving pipes, fittings, structures, household utensils, etc. The core feature is iron or steel material, and most are finished products, different from the semi-finished products of Chapter 72. Heading 7306 covers other tubes and pipes of iron or steel and hollow profiles, including seamless pipes, welded pipes, riveted pipes, etc., but excludes seamless pipes of 7304 and oil and gas casing of 7305. 7306 mainly targets welded pipes and pipes for specific uses, such as stainless steel welded pipes, galvanized pipes, etc. First 2 digits 73 = articles of iron or steel; 3rd-4th digits 06 = other tubes and pipes of iron or steel and hollow profiles (such as welded pipes); 5th-6th digits 11 = stainless steel welded pipes, circular cross-section. Specifically: 7306.11 refers to stainless steel welded pipes, circular cross-section, with external diameter ≤406.4mm. Note that subheadings are subdivided by material and cross-sectional shape. The product is a stainless steel welded pipe, circular cross-section, external diameter typically ≤406.4mm, conforming to the description of 7306.11. If it were seamless pipe, it should be classified under 7304; if it were oil and gas casing, under 7305; if external diameter >406.4mm, under 7306.19. Therefore, material, welding process, cross-sectional shape, and external diameter are key distinguishing points.
Chapter
Chapter 73 covers articles of iron or steel, including steel pipes, hollow profiles, steel structures, containers, cables, etc. This chapter ranges from 7301 to 7326, involving pipes, fittings, structures, household utensils, etc. The core feature is iron or steel material, and most are finished products, different from the semi-finished products of Chapter 72.
Heading
Heading 7306 covers other tubes and pipes of iron or steel and hollow profiles, including seamless pipes, welded pipes, riveted pipes, etc., but excludes seamless pipes of 7304 and oil and gas casing of 7305. 7306 mainly targets welded pipes and pipes for specific uses, such as stainless steel welded pipes, galvanized pipes, etc.
Digit Breakdown
First 2 digits 73 = articles of iron or steel; 3rd-4th digits 06 = other tubes and pipes of iron or steel and hollow profiles (such as welded pipes); 5th-6th digits 11 = stainless steel welded pipes, circular cross-section. Specifically: 7306.11 refers to stainless steel welded pipes, circular cross-section, with external diameter ≤406.4mm. Note that subheadings are subdivided by material and cross-sectional shape.
Classification Basis
The product is a stainless steel welded pipe, circular cross-section, external diameter typically ≤406.4mm, conforming to the description of 7306.11. If it were seamless pipe, it should be classified under 7304; if it were oil and gas casing, under 7305; if external diameter >406.4mm, under 7306.19. Therefore, material, welding process, cross-sectional shape, and external diameter are key distinguishing points.
📝 Declaration Elements
Product Name: The Chinese and English names of the declared goods, which must be consistent with the contract and invoice, such as 'stainless steel welded pipe' Material: Specific stainless steel grade, such as 304, 316L, etc., and main component content Specifications and Dimensions: External diameter, wall thickness, length, with units specified, such as external diameter 50mm, wall thickness 2mm, length 6m Cross-sectional Shape: Circular, square, rectangular, etc. For circular, the external diameter must be specified Processing Technology: Welding method, such as high-frequency welding, argon arc welding, etc., and whether cold drawn or heat treated Use: Main use, such as structural, fluid transportation, decoration, etc. Brand: Manufacturer or brand; if no brand, fill in 'None' Specification Model: Specific model or item number for easy identification Product Name: Stainless Steel Welded Pipe; Material: 304; Specifications and Dimensions: External diameter 50mm, wall thickness 2mm, length 6m; Cross-sectional Shape: Circular; Processing Technology: High-frequency welding, not cold drawn; Use: Fluid transportation; Brand: None; Specification Model: SS304-50-2. Not specifying external diameter, making it impossible to distinguish 7306.11 from 7306.19 Mistakenly declaring welded pipe as seamless pipe, incorrectly classified under 7304 Not providing stainless steel grade, affecting material identification and classification
Product Name
The Chinese and English names of the declared goods, which must be consistent with the contract and invoice, such as 'stainless steel welded pipe'
⚠️ Mistakenly written as 'stainless steel pipe' without specifying the welding process
Material
Specific stainless steel grade, such as 304, 316L, etc., and main component content
⚠️ Only writing 'stainless steel' without providing the grade
Specifications and Dimensions
External diameter, wall thickness, length, with units specified, such as external diameter 50mm, wall thickness 2mm, length 6m
⚠️ Omitting wall thickness or external diameter, leading to classification errors
Cross-sectional Shape
Circular, square, rectangular, etc. For circular, the external diameter must be specified
⚠️ Not specifying the shape, mistakenly classified as profiled pipe
Processing Technology
Welding method, such as high-frequency welding, argon arc welding, etc., and whether cold drawn or heat treated
⚠️ Not specifying the welding method, unable to distinguish seamless from welded
Use
Main use, such as structural, fluid transportation, decoration, etc.
⚠️ Use description too broad, such as 'industrial use'
Brand
Manufacturer or brand; if no brand, fill in 'None'
⚠️ Omitting brand information
Specification Model
Specific model or item number for easy identification
Not specifying external diameter, making it impossible to distinguish 7306.11 from 7306.19
Mistakenly declaring welded pipe as seamless pipe, incorrectly classified under 7304
Not providing stainless steel grade, affecting material identification and classification
🎯 Classification Logic
The core basis for classification is: 1) Material is stainless steel; 2) Processing technology is welding; 3) Cross-section is circular; 4) External diameter ≤406.4mm. At the same time, seamless pipes (7304), oil and gas casing (7305), and welded pipes with external diameter >406.4mm (7306.19) must be excluded. 7304 Seamless steel pipes: Seamless pipes are made by piercing and rolling, without welds; welded pipes have welds, different process. 7305 Oil and gas casing: 7305 is specifically for oil and gas drilling, with specific standards; 7306.11 is general-purpose welded pipe. 7306.19 Other stainless steel welded pipes: 7306.19 is for external diameter >406.4mm or non-circular cross-section; 7306.11 is for circular and external diameter ≤406.4mm. 7306.30 Other alloy steel welded pipes: Material is alloy steel, not stainless steel; stainless steel must contain chromium ≥10.5%. Confirm material is stainless steel and provide grade Confirm processing technology is welding and specify method Confirm cross-section is circular and external diameter ≤406.4mm Confirm use is not oil and gas drilling Check specifications and dimensions are consistent with declaration
Basis
The core basis for classification is: 1) Material is stainless steel; 2) Processing technology is welding; 3) Cross-section is circular; 4) External diameter ≤406.4mm. At the same time, seamless pipes (7304), oil and gas casing (7305), and welded pipes with external diameter >406.4mm (7306.19) must be excluded.
Confused Codes：
7304 - Seamless steel pipes
Seamless pipes are made by piercing and rolling, without welds; welded pipes have welds, different process.
7305 - Oil and gas casing
7305 is specifically for oil and gas drilling, with specific standards; 7306.11 is general-purpose welded pipe.
7306.19 - Other stainless steel welded pipes
7306.19 is for external diameter >406.4mm or non-circular cross-section; 7306.11 is for circular and external diameter ≤406.4mm.
7306.30 - Other alloy steel welded pipes
Material is alloy steel, not stainless steel; stainless steel must contain chromium ≥10.5%.
Self-Check：
✓ Confirm material is stainless steel and provide grade
✓ Confirm processing technology is welding and specify method
✓ Confirm cross-section is circular and external diameter ≤406.4mm
✓ Confirm use is not oil and gas drilling
✓ Check specifications and dimensions are consistent with declaration
❓ FAQ
How to distinguish stainless steel welded pipe from seamless pipe? Welded pipes have welds, which can be found by pickling or ultrasonic testing; seamless pipes have no welds and are made by piercing and rolling. When declaring, the processing technology must be provided; welded pipes are classified under 7306, seamless pipes under 7304. How to classify stainless steel welded pipe with external diameter exceeding 406.4mm? Circular stainless steel welded pipes with external diameter exceeding 406.4mm should be classified under 7306.19, not 7306.11. The external diameter must be accurately provided when declaring. Can stainless steel welded pipe used for oil drilling be classified under 7306.11? If specifically used for oil and gas drilling, it should be classified under 7305, not 7306.11. 7306.11 is general-purpose welded pipe, and judgment should be based on actual use. Is it acceptable to only write 'stainless steel' as the material when declaring? No. Specific grades such as 304, 316L, and main component content should be provided so that customs can confirm classification. Only writing 'stainless steel' may lead to classification disputes. How to classify stainless steel welded pipes with non-circular cross-section? Stainless steel welded pipes with non-circular cross-section (such as square, rectangular) should be classified under 7306.19, not 7306.11. 7306.11 only applies to circular cross-section. How to inquire about the import tax rate for stainless steel welded pipes? You can log on to the website of the General Administration of Customs of China or use the customs commodity code inquiry system, enter 7306.11 to inquire about the latest tax rate. Tax rates may change, subject to official announcements. How should 'Processing Technology' be filled in the declaration elements? The welding method should be specified, such as high-frequency welding, argon arc welding, and whether cold drawn, heat treated, etc. For example, 'high-frequency welding, not cold drawn'. The stainless steel welded pipe has a brand but the customer requests not to declare it. Is that acceptable? No. Brand is one of the declaration elements and must be declared truthfully. If there is no brand, fill in 'None', but it must not be concealed.
Q: How to distinguish stainless steel welded pipe from seamless pipe?
A: Welded pipes have welds, which can be found by pickling or ultrasonic testing; seamless pipes have no welds and are made by piercing and rolling. When declaring, the processing technology must be provided; welded pipes are classified under 7306, seamless pipes under 7304.
Q: How to classify stainless steel welded pipe with external diameter exceeding 406.4mm?
A: Circular stainless steel welded pipes with external diameter exceeding 406.4mm should be classified under 7306.19, not 7306.11. The external diameter must be accurately provided when declaring.
Q: Can stainless steel welded pipe used for oil drilling be classified under 7306.11?
A: If specifically used for oil and gas drilling, it should be classified under 7305, not 7306.11. 7306.11 is general-purpose welded pipe, and judgment should be based on actual use.
Q: Is it acceptable to only write 'stainless steel' as the material when declaring?
A: No. Specific grades such as 304, 316L, and main component content should be provided so that customs can confirm classification. Only writing 'stainless steel' may lead to classification disputes.
Q: How to classify stainless steel welded pipes with non-circular cross-section?
A: Stainless steel welded pipes with non-circular cross-section (such as square, rectangular) should be classified under 7306.19, not 7306.11. 7306.11 only applies to circular cross-section.
Q: How to inquire about the import tax rate for stainless steel welded pipes?
A: You can log on to the website of the General Administration of Customs of China or use the customs commodity code inquiry system, enter 7306.11 to inquire about the latest tax rate. Tax rates may change, subject to official announcements.
Q: How should 'Processing Technology' be filled in the declaration elements?
A: The welding method should be specified, such as high-frequency welding, argon arc welding, and whether cold drawn, heat treated, etc. For example, 'high-frequency welding, not cold drawn'.
Q: The stainless steel welded pipe has a brand but the customer requests not to declare it. Is that acceptable?
A: No. Brand is one of the declaration elements and must be declared truthfully. If there is no brand, fill in 'None', but it must not be concealed.
⚠️ 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.