Chapter 73 covers articles of iron or steel, including semi-finished and finished products such as steel plates, bars, tubes, profiles, as well as various articles of iron or steel such as structures, containers, chains, springs, nails, screws, etc. This chapter does not include raw materials for iron and steel smelting (Chapter 26), ferrous waste and scrap (Chapter 72), or machinery and equipment (Chapter 84). The core characteristic is that the goods are made of iron or steel and are not more specifically classified in other chapters. Heading 7315 covers chains and parts thereof, of iron or steel. Chains include articulated link chains, roller chains, flat chains, lifting chains, etc., widely used in transmission, conveying, lifting, binding, and other scenarios. Parts include chain links, link plates, pins, rollers, bushings, etc., but only apply to parts专门 for chains under heading 7315. This heading does not include key chains, decorative chains (classified under 7117 or 8308), or mechanical transmission devices (classified under 8483). Code 731589 is a 6-digit subheading. The first 2 digits "73" represent Chapter 73 (articles of iron or steel); digits 3-4 "15" represent heading 7315 (chains and parts thereof, of iron or steel); digits 5-6 "89" represent subheading 731589, namely "other parts of chains." Under heading 7315, subheadings are subdivided by chain type and parts: 731511 to 731519 are articulated link chains and parts thereof, 731520 is anti-skid chains, 731581 to 731589 are other chains and parts thereof. Among these, 731589 specifically refers to other chain parts not elsewhere specified, such as links, pins, etc. of non-articulated chains. The goods are dedicated parts of chains of iron or steel and are not classified under a more specific subheading (such as articulated link chain parts under 731511 to 731519). Because the material is iron or steel, it conforms to Chapter 73; because it is a chain part, it conforms to heading 7315; because it is not specifically named as articulated link chains, anti-skid chains, etc., it is classified under 731589 "other parts of chains." If it were a general-purpose part (such as bolts, nuts), it would be classified under 7318; if it were a mechanical transmission device, it would be classified under 8483.
Chapter
Chapter 73 covers articles of iron or steel, including semi-finished and finished products such as steel plates, bars, tubes, profiles, as well as various articles of iron or steel such as structures, containers, chains, springs, nails, screws, etc. This chapter does not include raw materials for iron and steel smelting (Chapter 26), ferrous waste and scrap (Chapter 72), or machinery and equipment (Chapter 84). The core characteristic is that the goods are made of iron or steel and are not more specifically classified in other chapters.
Heading
Heading 7315 covers chains and parts thereof, of iron or steel. Chains include articulated link chains, roller chains, flat chains, lifting chains, etc., widely used in transmission, conveying, lifting, binding, and other scenarios. Parts include chain links, link plates, pins, rollers, bushings, etc., but only apply to parts专门 for chains under heading 7315. This heading does not include key chains, decorative chains (classified under 7117 or 8308), or mechanical transmission devices (classified under 8483).
Digit Breakdown
Code 731589 is a 6-digit subheading. The first 2 digits "73" represent Chapter 73 (articles of iron or steel); digits 3-4 "15" represent heading 7315 (chains and parts thereof, of iron or steel); digits 5-6 "89" represent subheading 731589, namely "other parts of chains." Under heading 7315, subheadings are subdivided by chain type and parts: 731511 to 731519 are articulated link chains and parts thereof, 731520 is anti-skid chains, 731581 to 731589 are other chains and parts thereof. Among these, 731589 specifically refers to other chain parts not elsewhere specified, such as links, pins, etc. of non-articulated chains.
Classification Basis
The goods are dedicated parts of chains of iron or steel and are not classified under a more specific subheading (such as articulated link chain parts under 731511 to 731519). Because the material is iron or steel, it conforms to Chapter 73; because it is a chain part, it conforms to heading 7315; because it is not specifically named as articulated link chains, anti-skid chains, etc., it is classified under 731589 "other parts of chains." If it were a general-purpose part (such as bolts, nuts), it would be classified under 7318; if it were a mechanical transmission device, it would be classified under 8483.
📝 Declaration Elements
Product Name: The standard name of the declared commodity should be specific and clear, such as "chain parts," "chain links," "pins," etc., avoiding the vague term "steel products." Material: Declare the specific type of iron or steel, such as "alloy steel," "carbon steel," "stainless steel," etc., and indicate the content of main components. Use: Explain what kind of chain or equipment the part is used for, such as "for conveyor chain," "for lifting chain," "for motorcycle drive chain." Brand: Declare the brand of the commodity; if there is no brand, fill in "no brand." Model: Declare the model or specification of the commodity, such as "08B-1," "16A," etc., to facilitate customs classification. Processing Method: Explain the manufacturing process of the part, such as "forging," "casting," "machining," "stamping," etc. Appearance Dimensions: Declare the specific dimensions of the part, such as length, diameter, thickness, etc., in millimeters. Whether Dedicated Part: Declare whether the part is dedicated to chains or is a general-purpose part. Product Name: Chain part (chain link); Material: Alloy steel, containing 0.2% carbon, 1.5% chromium; Use: For conveyor chain, connecting link plates; Brand: ABC; Model: 08B-1; Processing Method: Stamped then machined; Appearance Dimensions: Length 50mm, Width 20mm, Thickness 5mm; Whether Dedicated Part: Yes.
Note: This part is a dedicated chain link for chains, not a general-purpose steel product. Confusing chain parts with general-purpose steel parts, such as bolts and nuts, which should be classified under 7318, not 7315. The material declaration is not specific, writing only "steel" without providing grade or composition, affecting classification. The description of use is vague, failing to specify what kind of chain it is used for, which may lead to customs questioning.
Product Name
The standard name of the declared commodity should be specific and clear, such as "chain parts," "chain links," "pins," etc., avoiding the vague term "steel products."
⚠️ Writing only "chain" or "steel parts" without distinguishing whether it is a chain or a part.
Material
Declare the specific type of iron or steel, such as "alloy steel," "carbon steel," "stainless steel," etc., and indicate the content of main components.
⚠️ Writing only "iron" or "steel" without providing grade or composition.
Use
Explain what kind of chain or equipment the part is used for, such as "for conveyor chain," "for lifting chain," "for motorcycle drive chain."
⚠️ The description of use is too broad, such as "for machinery."
Brand
Declare the brand of the commodity; if there is no brand, fill in "no brand."
⚠️ Confusing brand with trademark, or omitting the brand.
Model
Declare the model or specification of the commodity, such as "08B-1," "16A," etc., to facilitate customs classification.
⚠️ The model is incomplete or inconsistent with the actual product.
Processing Method
Explain the manufacturing process of the part, such as "forging," "casting," "machining," "stamping," etc.
⚠️ Failure to indicate the processing method, leading to classification disputes.
Appearance Dimensions
Declare the specific dimensions of the part, such as length, diameter, thickness, etc., in millimeters.
⚠️ Incorrect unit of dimensions or failure to provide key dimensions.
Whether Dedicated Part
Declare whether the part is dedicated to chains or is a general-purpose part.
⚠️ Misreporting a general-purpose part as a dedicated part.
Example： Product Name: Chain part (chain link); Material: Alloy steel, containing 0.2% carbon, 1.5% chromium; Use: For conveyor chain, connecting link plates; Brand: ABC; Model: 08B-1; Processing Method: Stamped then machined; Appearance Dimensions: Length 50mm, Width 20mm, Thickness 5mm; Whether Dedicated Part: Yes.
Note: This part is a dedicated chain link for chains, not a general-purpose steel product.
Common Mistakes：
Confusing chain parts with general-purpose steel parts, such as bolts and nuts, which should be classified under 7318, not 7315.
The material declaration is not specific, writing only "steel" without providing grade or composition, affecting classification.
The description of use is vague, failing to specify what kind of chain it is used for, which may lead to customs questioning.
🎯 Classification Logic
Core basis for classification: 1) The material is iron or steel, conforming to Chapter 73; 2) It is a dedicated part of chains, conforming to heading 7315; 3) It is not classified under a more specific subheading under 7315 (such as articulated link chain parts 731519), so it is classified under 731589. If the part is a general-purpose item (such as bolts, pins), it is classified under 7318; if it is a mechanical transmission device (such as a gearbox), it is classified under 8483. 731519 Articulated link chain parts: 731519 specifically refers to parts of articulated link chains, such as link plates, pins, rollers, etc.; while 731589 refers to parts of other chains (non-articulated chains), such as parts of flat chains and lifting chains. 7318 Bolts, nuts, pins, etc. of iron or steel: 7318 covers general-purpose fasteners not dedicated to chains; if the part is dedicated to chains, even if similar in shape, it should be classified under 7315. 8483 Transmission shafts, gears, chain transmission devices: 8483 includes chain transmission devices (such as sprockets, chain tensioners), but chains themselves and their parts are classified under 7315. 7326 Other articles of iron or steel: 7326 is a residual heading for articles of iron or steel; if chain parts are not named under 7315 and are not dedicated, they may be classified under 7326, but dedicated parts are preferentially classified under 7315. Is the material iron or steel? Is it dedicated to chains? Does it belong to articulated link chain parts? Does it belong to general-purpose fasteners? Does it belong to mechanical transmission devices?
Basis
Core basis for classification: 1) The material is iron or steel, conforming to Chapter 73; 2) It is a dedicated part of chains, conforming to heading 7315; 3) It is not classified under a more specific subheading under 7315 (such as articulated link chain parts 731519), so it is classified under 731589. If the part is a general-purpose item (such as bolts, pins), it is classified under 7318; if it is a mechanical transmission device (such as a gearbox), it is classified under 8483.
Confused Codes：
731519 - Articulated link chain parts
731519 specifically refers to parts of articulated link chains, such as link plates, pins, rollers, etc.; while 731589 refers to parts of other chains (non-articulated chains), such as parts of flat chains and lifting chains.
7318 - Bolts, nuts, pins, etc. of iron or steel
7318 covers general-purpose fasteners not dedicated to chains; if the part is dedicated to chains, even if similar in shape, it should be classified under 7315.
8483 includes chain transmission devices (such as sprockets, chain tensioners), but chains themselves and their parts are classified under 7315.
7326 - Other articles of iron or steel
7326 is a residual heading for articles of iron or steel; if chain parts are not named under 7315 and are not dedicated, they may be classified under 7326, but dedicated parts are preferentially classified under 7315.
Self-Check：
✓ Is the material iron or steel?
✓ Is it dedicated to chains?
✓ Does it belong to articulated link chain parts?
✓ Does it belong to general-purpose fasteners?
✓ Does it belong to mechanical transmission devices?
❓ FAQ
How to inquire about the tariff rate for 731589? You can inquire through the official website of the General Administration of Customs of China or the "Single Window" by entering HS code 731589 to check the import MFN rate, general rate, VAT rate, and consumption tax. Tariff rates may be adjusted with policy changes; it is recommended to refer to the latest published rates. What is the difference between chain parts and general-purpose parts? Chain parts are dedicated to chains, such as chain links, pins, rollers; even if similar in shape to bolts, they are classified under 7315. General-purpose parts such as bolts and nuts are not dedicated to chains and are classified under 7318. The key is whether they are used in conjunction with chains. Are brand and model mandatory when declaring? Brand and model are important declaration elements. If there is no brand, fill in "no brand"; the model should be filled in truthfully. Omission or error may lead to customs inspection, classification disputes, or even penalties. What is the difference between 731589 and 731519? 731519 covers dedicated parts of articulated link chains, such as link plates and pins; 731589 covers parts of other chains (such as flat chains and lifting chains). If the part is used for articulated link chains, it should be classified under 731519; otherwise, under 731589. What documents are required for importing chain parts? Usually, contracts, invoices, packing lists, bills of lading, customs declarations, product manuals, etc. are required. If a brand is involved, an authorization letter is required; if special steel is involved, a material certificate may be required. If the chain part is made of plastic, can it still be classified under 731589? No. 731589 only applies to parts of iron or steel. Plastic chain parts should be classified under Chapter 39 (plastics and articles thereof), with the specific subheading determined by use and shape. How to declare chain parts exported as cross-border e-commerce small parcels? Cross-border e-commerce small parcels also need to truthfully declare the HS code, product name, material, use, etc. Low-value parcels may be eligible for simplified declaration, but correct classification must be ensured to avoid returns or fines due to false declaration. What to do if there is a dispute with customs over the classification of chain parts? You can apply to customs for advance classification by providing detailed product information to obtain a "Pre-classification Decision." If already declared, you can submit a classification basis explanation or apply for administrative reconsideration. It is recommended to consult a professional customs broker or customs consultant.
Q: How to inquire about the tariff rate for 731589?
A: You can inquire through the official website of the General Administration of Customs of China or the "Single Window" by entering HS code 731589 to check the import MFN rate, general rate, VAT rate, and consumption tax. Tariff rates may be adjusted with policy changes; it is recommended to refer to the latest published rates.
Q: What is the difference between chain parts and general-purpose parts?
A: Chain parts are dedicated to chains, such as chain links, pins, rollers; even if similar in shape to bolts, they are classified under 7315. General-purpose parts such as bolts and nuts are not dedicated to chains and are classified under 7318. The key is whether they are used in conjunction with chains.
Q: Are brand and model mandatory when declaring?
A: Brand and model are important declaration elements. If there is no brand, fill in "no brand"; the model should be filled in truthfully. Omission or error may lead to customs inspection, classification disputes, or even penalties.
Q: What is the difference between 731589 and 731519?
A: 731519 covers dedicated parts of articulated link chains, such as link plates and pins; 731589 covers parts of other chains (such as flat chains and lifting chains). If the part is used for articulated link chains, it should be classified under 731519; otherwise, under 731589.
Q: What documents are required for importing chain parts?
A: Usually, contracts, invoices, packing lists, bills of lading, customs declarations, product manuals, etc. are required. If a brand is involved, an authorization letter is required; if special steel is involved, a material certificate may be required.
Q: If the chain part is made of plastic, can it still be classified under 731589?
A: No. 731589 only applies to parts of iron or steel. Plastic chain parts should be classified under Chapter 39 (plastics and articles thereof), with the specific subheading determined by use and shape.
Q: How to declare chain parts exported as cross-border e-commerce small parcels?
A: Cross-border e-commerce small parcels also need to truthfully declare the HS code, product name, material, use, etc. Low-value parcels may be eligible for simplified declaration, but correct classification must be ensured to avoid returns or fines due to false declaration.
Q: What to do if there is a dispute with customs over the classification of chain parts?
A: You can apply to customs for advance classification by providing detailed product information to obtain a "Pre-classification Decision." If already declared, you can submit a classification basis explanation or apply for administrative reconsideration. It is recommended to consult a professional customs broker or customs consultant.
⚠️ 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.