Chapter 73 covers articles of iron or steel, but excludes raw materials for iron and steel smelting (Chapter 72) and specifically named machinery, vehicles, etc. This chapter includes iron and steel pipe fittings, structural parts, containers, household utensils, etc. The core is 'finished articles of iron or steel,' i.e., products that have undergone further processing such as casting, forging, welding, machining, etc. Heading 7307 specifically covers iron and steel pipe fittings used to connect piping systems. Heading 7307 covers pipe fittings of iron or steel, including joints, elbows, tees, reducers, etc., made by casting, forging, welding, or other methods, used for pipe connections. However, it only includes pipe fittings of iron or steel, excluding pipe fittings of plastics, copper, or other materials. Subheadings are subdivided by manufacturing method and material: 7307.1 for cast pipe fittings, 7307.2 for pipe fittings of stainless steel, and 7307.9 for other pipe fittings of iron or steel. Code 730723 consists of 6 digits: the first 2 digits '73' represent Chapter 73 'Articles of Iron or Steel'; digits 3-4 '07' represent the heading 'pipe fittings of iron or steel'; digits 5-6 '23' represent the subheading 'welded fittings of stainless steel.' Specifically, the 5th digit '2' indicates 'pipe fittings of stainless steel,' and the 6th digit '3' further limits it to 'welded fittings,' i.e., stainless steel pipe fittings made by welding process, as distinguished from casting, forging, or other processes. Therefore, 730723 precisely points to stainless steel welded fittings, commonly used for pipe connections. This commodity is a stainless steel welded fitting, belonging to pipe fittings of iron or steel, and is therefore classified under 7307. Since the material is stainless steel and the manufacturing method is welding, it is classified under subheading 7307.23. It is not classified under 7307.22 (cast fittings of stainless steel) or 7307.29 (other fittings of stainless steel), nor under 7307.11 (cast fittings of cast iron) or 7307.19 (other cast fittings).
Chapter
Chapter 73 covers articles of iron or steel, but excludes raw materials for iron and steel smelting (Chapter 72) and specifically named machinery, vehicles, etc. This chapter includes iron and steel pipe fittings, structural parts, containers, household utensils, etc. The core is 'finished articles of iron or steel,' i.e., products that have undergone further processing such as casting, forging, welding, machining, etc. Heading 7307 specifically covers iron and steel pipe fittings used to connect piping systems.
Heading
Heading 7307 covers pipe fittings of iron or steel, including joints, elbows, tees, reducers, etc., made by casting, forging, welding, or other methods, used for pipe connections. However, it only includes pipe fittings of iron or steel, excluding pipe fittings of plastics, copper, or other materials. Subheadings are subdivided by manufacturing method and material: 7307.1 for cast pipe fittings, 7307.2 for pipe fittings of stainless steel, and 7307.9 for other pipe fittings of iron or steel.
Digit Breakdown
Code 730723 consists of 6 digits: the first 2 digits '73' represent Chapter 73 'Articles of Iron or Steel'; digits 3-4 '07' represent the heading 'pipe fittings of iron or steel'; digits 5-6 '23' represent the subheading 'welded fittings of stainless steel.' Specifically, the 5th digit '2' indicates 'pipe fittings of stainless steel,' and the 6th digit '3' further limits it to 'welded fittings,' i.e., stainless steel pipe fittings made by welding process, as distinguished from casting, forging, or other processes. Therefore, 730723 precisely points to stainless steel welded fittings, commonly used for pipe connections.
Classification Basis
This commodity is a stainless steel welded fitting, belonging to pipe fittings of iron or steel, and is therefore classified under 7307. Since the material is stainless steel and the manufacturing method is welding, it is classified under subheading 7307.23. It is not classified under 7307.22 (cast fittings of stainless steel) or 7307.29 (other fittings of stainless steel), nor under 7307.11 (cast fittings of cast iron) or 7307.19 (other cast fittings).
📝 Declaration Elements
Product Name: Declare the commodity name specifically and clearly, such as 'stainless steel welded fitting,' 'stainless steel welded elbow,' etc., avoiding the vague term 'pipe fitting.' Material: Declare the specific grade or composition of stainless steel, such as 304, 316L, etc., and indicate the applicable standard. Manufacturing Process: Clearly state the welding process, such as 'welding,' 'welded forming,' to distinguish from casting or forging. Specifications and Model: Declare the dimensions of the pipe fitting, such as nominal diameter, outer diameter, wall thickness, angle, etc., as well as the model. Use: Explain what type of pipe is being connected and the application scenario, such as 'used for petroleum pipeline connection.' Brand: Declare the brand name; if there is no brand, indicate 'no brand.' Processing Method: Such as 'machined after welding,' 'welded and polished,' etc., to further clarify the process. Product Name: Stainless steel welded fitting; Material: Stainless steel 304; Manufacturing Process: Welding; Specifications and Model: DN50, outer diameter 60.3mm, wall thickness 3.9mm, 90-degree elbow; Use: For petroleum pipeline connection; Brand: No brand; Processing Method: Polished after welding. Misreporting a welded fitting as a cast fitting, resulting in classification under 7307.22 instead of 7307.23. Declaring the material as 'stainless steel' without providing the specific grade, which may raise classification doubts. Incomplete specifications and model, such as missing wall thickness or angle, affecting customs review.
Product Name
Declare the commodity name specifically and clearly, such as 'stainless steel welded fitting,' 'stainless steel welded elbow,' etc., avoiding the vague term 'pipe fitting.'
⚠️ Error example: writing only 'stainless steel fitting' without specifying the welding process.
Material
Declare the specific grade or composition of stainless steel, such as 304, 316L, etc., and indicate the applicable standard.
⚠️ Error example: writing only 'stainless steel' without providing the grade.
Manufacturing Process
Clearly state the welding process, such as 'welding,' 'welded forming,' to distinguish from casting or forging.
⚠️ Error example: writing 'casting' or 'forging,' leading to classification errors.
Specifications and Model
Declare the dimensions of the pipe fitting, such as nominal diameter, outer diameter, wall thickness, angle, etc., as well as the model.
⚠️ Error example: writing only 'DN50' without specifying wall thickness or standard.
Use
Explain what type of pipe is being connected and the application scenario, such as 'used for petroleum pipeline connection.'
⚠️ Error example: writing 'used for pipeline,' which is too vague.
Brand
Declare the brand name; if there is no brand, indicate 'no brand.'
⚠️ Error example: omitting the brand or incorrectly reporting another brand.
Processing Method
Such as 'machined after welding,' 'welded and polished,' etc., to further clarify the process.
⚠️ Error example: failing to describe subsequent processing, leading to classification disputes.
Example： Product Name: Stainless steel welded fitting; Material: Stainless steel 304; Manufacturing Process: Welding; Specifications and Model: DN50, outer diameter 60.3mm, wall thickness 3.9mm, 90-degree elbow; Use: For petroleum pipeline connection; Brand: No brand; Processing Method: Polished after welding.
Common Mistakes：
Misreporting a welded fitting as a cast fitting, resulting in classification under 7307.22 instead of 7307.23.
Declaring the material as 'stainless steel' without providing the specific grade, which may raise classification doubts.
Incomplete specifications and model, such as missing wall thickness or angle, affecting customs review.
🎯 Classification Logic
The core basis for classification is: 1) the material is stainless steel; 2) the manufacturing method is welding; 3) it belongs to pipe fittings (used for connecting pipes). According to the Import and Export Tariff and its notes, heading 7307 includes pipe fittings of iron or steel, and subheading 7307.23 specifically covers welded fittings of stainless steel. If cast, it is classified under 7307.22; if made by other processes, it is classified under 7307.29. 730722 Cast fittings of stainless steel: The manufacturing process is casting, not welding. Cast fittings usually have casting marks, while welded fittings have weld seams. 730729 Other fittings of stainless steel: The manufacturing process is neither casting nor welding, such as forging, machining, etc. 730711 Cast fittings of cast iron: The material is cast iron, not stainless steel. 730719 Other cast fittings: The material is other iron or steel, and the process is casting. 730793 Other welded fittings of iron or steel: The material is other iron or steel (not stainless steel), and the process is welding. Is the material stainless steel? Is the manufacturing process welding? Does it belong to pipe fittings (used for connecting pipes)? Are other processes such as casting and forging excluded? Are the specifications and model complete?
Basis
The core basis for classification is: 1) the material is stainless steel; 2) the manufacturing method is welding; 3) it belongs to pipe fittings (used for connecting pipes). According to the Import and Export Tariff and its notes, heading 7307 includes pipe fittings of iron or steel, and subheading 7307.23 specifically covers welded fittings of stainless steel. If cast, it is classified under 7307.22; if made by other processes, it is classified under 7307.29.
Confused Codes：
730722 - Cast fittings of stainless steel
The manufacturing process is casting, not welding. Cast fittings usually have casting marks, while welded fittings have weld seams.
730729 - Other fittings of stainless steel
The manufacturing process is neither casting nor welding, such as forging, machining, etc.
730711 - Cast fittings of cast iron
The material is cast iron, not stainless steel.
730719 - Other cast fittings
The material is other iron or steel, and the process is casting.
730793 - Other welded fittings of iron or steel
The material is other iron or steel (not stainless steel), and the process is welding.
Self-Check：
✓ Is the material stainless steel?
✓ Is the manufacturing process welding?
✓ Does it belong to pipe fittings (used for connecting pipes)?
✓ Are other processes such as casting and forging excluded?
✓ Are the specifications and model complete?
❓ FAQ
How to determine whether a stainless steel welded fitting should be classified under 730723 or 730722? The key is the manufacturing process: if it is welded forming, classify under 730723; if it is cast, classify under 730722. You can check whether the product has weld seams or ask the supplier about the process. When declaring a stainless steel welded fitting, how should the material be filled in? The specific stainless steel grade should be filled in, such as 304, 316L, etc., and the applicable standard (such as ASTM A403) should be indicated. Writing only 'stainless steel' may result in a request for supplementary information. If the fitting is machined after welding, does it affect classification? No, as long as the main process is welding, it is still classified under 730723. However, if machining changes the essential character, a specific analysis is required. What are the common specifications and models of stainless steel welded fittings? Common types include elbows, tees, reducers, caps, etc. Specifications include DN15-DN600, wall thickness SCH10-SCH160, angles 45 degrees, 90 degrees, etc. What is the export tax rebate rate for this code? The rebate rate is adjusted with policy changes. It is recommended to check the latest Export Tax Rebate Rate Database or consult the local customs. Generally, the rebate rate for stainless steel pipe fittings is relatively high. What documents are required for importing stainless steel welded fittings? Generally, a contract, invoice, packing list, bill of lading, certificate of origin, etc. are required. If anti-dumping is involved, relevant certificates are also required. How to check the MFN tariff rate for 730723? You can visit the website of the General Administration of Customs of China or use tools such as 'Customs Classification Expert' to enter the code and check the latest tariff rate. Note that tariff rates may change. If the fitting is used in the food industry, are there special regulatory conditions? It may involve food contact material certification, but the HS code remains unchanged. It must comply with standards such as GB 4806, and relevant test reports should be provided at the time of declaration.
Q: How to determine whether a stainless steel welded fitting should be classified under 730723 or 730722?
A: The key is the manufacturing process: if it is welded forming, classify under 730723; if it is cast, classify under 730722. You can check whether the product has weld seams or ask the supplier about the process.
Q: When declaring a stainless steel welded fitting, how should the material be filled in?
A: The specific stainless steel grade should be filled in, such as 304, 316L, etc., and the applicable standard (such as ASTM A403) should be indicated. Writing only 'stainless steel' may result in a request for supplementary information.
Q: If the fitting is machined after welding, does it affect classification?
A: No, as long as the main process is welding, it is still classified under 730723. However, if machining changes the essential character, a specific analysis is required.
Q: What are the common specifications and models of stainless steel welded fittings?
A: Common types include elbows, tees, reducers, caps, etc. Specifications include DN15-DN600, wall thickness SCH10-SCH160, angles 45 degrees, 90 degrees, etc.
Q: What is the export tax rebate rate for this code?
A: The rebate rate is adjusted with policy changes. It is recommended to check the latest Export Tax Rebate Rate Database or consult the local customs. Generally, the rebate rate for stainless steel pipe fittings is relatively high.
Q: What documents are required for importing stainless steel welded fittings?
A: Generally, a contract, invoice, packing list, bill of lading, certificate of origin, etc. are required. If anti-dumping is involved, relevant certificates are also required.
Q: How to check the MFN tariff rate for 730723?
A: You can visit the website of the General Administration of Customs of China or use tools such as 'Customs Classification Expert' to enter the code and check the latest tariff rate. Note that tariff rates may change.
Q: If the fitting is used in the food industry, are there special regulatory conditions?
A: It may involve food contact material certification, but the HS code remains unchanged. It must comply with standards such as GB 4806, and relevant test reports should be provided at the time of declaration.
⚠️ 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.