Chapter 73 covers 'Articles of Iron or Steel' in the Harmonized System, specifically including tubes, pipes, hollow profiles, structures, sheet piling, wire, sanitary ware, etc., of iron or steel. This chapter does not include raw materials of iron or steel (Chapter 72) or specifically named machinery, vehicles, etc. (Chapters 84-87). The core characteristic is: articles of iron or steel that have undergone further processing (such as casting, forging, welding, cold-forming, etc.) and are not more specifically named in other chapters. Heading 7301 covers 'Sheet piling of iron or steel, whether or not drilled, punched or made from assembled elements; welded angles, shapes and sections, of iron or steel; riveted angles, shapes and sections, of iron or steel'. The main goods are steel sheet piling (used for earth retention, cofferdams, etc.) and welded or riveted angles, shapes and sections. Note: angles, shapes and sections that are only rolled, drawn or extruded are classified under Chapter 72; only those that have been welded, riveted or assembled into specific shapes are classified under 7301. The first 2 digits '73' represent Chapter 73 'Articles of Iron or Steel', distinguished from Chapter 72 'Iron and Steel' (raw materials and primary rolled products). Digits 3-4 '01' represent heading 7301, i.e., 'Sheet piling of iron or steel; welded angles, shapes and sections'. Digits 5-6 '10' represent subheading 730110, specifically 'Sheet piling'. This subheading only includes steel sheet piling formed by hot-rolling or cold-forming, with interlocks or grooves, used for temporary or permanent earth retention and water retention structures. If they are welded angles, shapes and sections, they are classified under 730120; if they are other assembled elements, they may be classified under 7308. Steel sheet piling is classified under 730110 because it is made of iron or steel, formed by rolling or cold-forming and has connecting interlocks, meeting the specific description of 'sheet piling' under heading 7301. It is not classified under 7308 (iron or steel structures) because 7308 covers assembled structures or parts; nor under 7216 (angles, shapes and sections of iron or non-alloy steel) because 7216 only refers to rolled products that have not been welded or further formed.
Chapter
Chapter 73 covers 'Articles of Iron or Steel' in the Harmonized System, specifically including tubes, pipes, hollow profiles, structures, sheet piling, wire, sanitary ware, etc., of iron or steel. This chapter does not include raw materials of iron or steel (Chapter 72) or specifically named machinery, vehicles, etc. (Chapters 84-87). The core characteristic is: articles of iron or steel that have undergone further processing (such as casting, forging, welding, cold-forming, etc.) and are not more specifically named in other chapters.
Heading
Heading 7301 covers 'Sheet piling of iron or steel, whether or not drilled, punched or made from assembled elements; welded angles, shapes and sections, of iron or steel; riveted angles, shapes and sections, of iron or steel'. The main goods are steel sheet piling (used for earth retention, cofferdams, etc.) and welded or riveted angles, shapes and sections. Note: angles, shapes and sections that are only rolled, drawn or extruded are classified under Chapter 72; only those that have been welded, riveted or assembled into specific shapes are classified under 7301.
Digit Breakdown
The first 2 digits '73' represent Chapter 73 'Articles of Iron or Steel', distinguished from Chapter 72 'Iron and Steel' (raw materials and primary rolled products). Digits 3-4 '01' represent heading 7301, i.e., 'Sheet piling of iron or steel; welded angles, shapes and sections'. Digits 5-6 '10' represent subheading 730110, specifically 'Sheet piling'. This subheading only includes steel sheet piling formed by hot-rolling or cold-forming, with interlocks or grooves, used for temporary or permanent earth retention and water retention structures. If they are welded angles, shapes and sections, they are classified under 730120; if they are other assembled elements, they may be classified under 7308.
Classification Basis
Steel sheet piling is classified under 730110 because it is made of iron or steel, formed by rolling or cold-forming and has connecting interlocks, meeting the specific description of 'sheet piling' under heading 7301. It is not classified under 7308 (iron or steel structures) because 7308 covers assembled structures or parts; nor under 7216 (angles, shapes and sections of iron or non-alloy steel) because 7216 only refers to rolled products that have not been welded or further formed.
📝 Declaration Elements
Product Name: The standard name of the declared commodity should use 'steel sheet piling' or 'iron or steel sheet piling', and indicate the material (such as non-alloy steel, alloy steel). Material: Fill in the steel grade or chemical composition, such as Q235B, S355GP, etc., and whether it is alloy steel. Specifications and Model: Fill in cross-sectional dimensions (such as width, height, thickness), length, interlock shape (such as U-type, Z-type, straight type). Processing Technique: State whether it is hot-rolled, cold-formed or welded assembly, and whether it has been drilled, punched, etc. Use: Fill in the main use, such as foundation pit support, cofferdam, retaining wall, flood control engineering, etc. Brand or Origin: Fill in the manufacturer or brand, and the country (region) of origin. Unit of Measurement: Declare by weight (kilograms) or length (meters), and it must be consistent with the customs declaration form. Product Name: Hot-rolled steel sheet piling (U-type); Material: Non-alloy steel Q235B; Specifications: Width 400mm, Height 170mm, Thickness 15.5mm, Length 12m; Processing Technique: Hot-rolled forming, with interlocks; Use: Foundation pit support; Brand: XX Steel; Country of Origin: China; Unit of Measurement: Kilograms. Confusing steel sheet piling with ordinary hot-rolled section steel, ignoring the interlock feature, leading to classification under 7216. Failing to declare whether the material is alloy steel, affecting possible trade controls or tax rates. Incomplete specifications and model, missing interlock shape, unable to prove it is steel sheet piling.
Product Name
The standard name of the declared commodity should use 'steel sheet piling' or 'iron or steel sheet piling', and indicate the material (such as non-alloy steel, alloy steel).
⚠️ Mistakenly declaring as 'section steel' or 'angle steel', leading to classification errors.
Material
Fill in the steel grade or chemical composition, such as Q235B, S355GP, etc., and whether it is alloy steel.
⚠️ Only writing 'steel' without providing a specific grade, making it impossible to determine whether it is alloy steel.
Specifications and Model
Fill in cross-sectional dimensions (such as width, height, thickness), length, interlock shape (such as U-type, Z-type, straight type).
⚠️ Omitting the interlock shape, making it impossible to distinguish steel sheet piling from ordinary section steel.
Processing Technique
State whether it is hot-rolled, cold-formed or welded assembly, and whether it has been drilled, punched, etc.
⚠️ Mistakenly declaring cold-formed as hot-rolled, affecting classification.
Use
Fill in the main use, such as foundation pit support, cofferdam, retaining wall, flood control engineering, etc.
⚠️ Vaguely writing 'for construction', without reflecting the specific engineering scenario.
Brand or Origin
Fill in the manufacturer or brand, and the country (region) of origin.
⚠️ Confusing brand with manufacturer, leading to incorrect declaration of origin.
Unit of Measurement
Declare by weight (kilograms) or length (meters), and it must be consistent with the customs declaration form.
⚠️ Using both weight and length without conversion, causing data contradictions.
Example： Product Name: Hot-rolled steel sheet piling (U-type); Material: Non-alloy steel Q235B; Specifications: Width 400mm, Height 170mm, Thickness 15.5mm, Length 12m; Processing Technique: Hot-rolled forming, with interlocks; Use: Foundation pit support; Brand: XX Steel; Country of Origin: China; Unit of Measurement: Kilograms.
Common Mistakes：
Confusing steel sheet piling with ordinary hot-rolled section steel, ignoring the interlock feature, leading to classification under 7216.
Failing to declare whether the material is alloy steel, affecting possible trade controls or tax rates.
Incomplete specifications and model, missing interlock shape, unable to prove it is steel sheet piling.
🎯 Classification Logic
The core basis for classification is the interpretation of heading 7301 in the 'Import and Export Tariff' and the 'Explanatory Notes to the Harmonized System'. Steel sheet piling must meet: 1) Made of iron or steel; 2) With interlocks, grooves or other connecting structures for mutual interlocking; 3) Formed by hot-rolling or cold-forming, not welded assembly. If they are welded angles, shapes and sections, they are classified under 730120; if assembled into structural elements, they are classified under 7308. In addition, note that the difference between steel sheet piling and ordinary section steel lies in its connecting function. 730120 Welded angles, shapes and sections: 730120 is welded angles, shapes and sections, while 730110 is steel sheet piling, the latter has interlocks and is used for earth retention, the former has no interlocks and is only formed by welding. 721610 Hot-rolled angles, shapes and sections: 7216 covers rolled angles, shapes and sections that have not been welded or further formed, while 730110 is steel sheet piling with interlocks, having a connecting function. 730890 Other iron or steel structures: 7308 covers assembled structures or parts, such as bridges, towers, etc., while steel sheet piling is a standalone earth-retaining component, not assembled into a structure. 730840 Iron or steel scaffolding, formwork, etc.: 730840 covers scaffolding, formwork and other specialized parts, while steel sheet piling is used for permanent or temporary earth retention, with a different function. 722870 Angles, shapes and sections of alloy steel: 7228 covers rolled sections of alloy steel; if it is alloy steel without interlocks, it is classified under 7228; if it is steel sheet piling made of alloy steel, it is still classified under 730110. Does it have interlocks or grooves or other connecting structures? Is it hot-rolled or cold-formed, rather than welded assembly? Is the material iron or steel (non-alloy or alloy)? Is it used for earth retention, cofferdams and other engineering? Has it not been assembled into other structures?
Basis
The core basis for classification is the interpretation of heading 7301 in the 'Import and Export Tariff' and the 'Explanatory Notes to the Harmonized System'. Steel sheet piling must meet: 1) Made of iron or steel; 2) With interlocks, grooves or other connecting structures for mutual interlocking; 3) Formed by hot-rolling or cold-forming, not welded assembly. If they are welded angles, shapes and sections, they are classified under 730120; if assembled into structural elements, they are classified under 7308. In addition, note that the difference between steel sheet piling and ordinary section steel lies in its connecting function.
Confused Codes：
730120 - Welded angles, shapes and sections
730120 is welded angles, shapes and sections, while 730110 is steel sheet piling, the latter has interlocks and is used for earth retention, the former has no interlocks and is only formed by welding.
721610 - Hot-rolled angles, shapes and sections
7216 covers rolled angles, shapes and sections that have not been welded or further formed, while 730110 is steel sheet piling with interlocks, having a connecting function.
730890 - Other iron or steel structures
7308 covers assembled structures or parts, such as bridges, towers, etc., while steel sheet piling is a standalone earth-retaining component, not assembled into a structure.
730840 - Iron or steel scaffolding, formwork, etc.
730840 covers scaffolding, formwork and other specialized parts, while steel sheet piling is used for permanent or temporary earth retention, with a different function.
722870 - Angles, shapes and sections of alloy steel
7228 covers rolled sections of alloy steel; if it is alloy steel without interlocks, it is classified under 7228; if it is steel sheet piling made of alloy steel, it is still classified under 730110.
Self-Check：
✓ Does it have interlocks or grooves or other connecting structures?
✓ Is it hot-rolled or cold-formed, rather than welded assembly?
✓ Is the material iron or steel (non-alloy or alloy)?
✓ Is it used for earth retention, cofferdams and other engineering?
✓ Has it not been assembled into other structures?
❓ FAQ
How to look up the HS code for steel sheet piling? You can use the General Administration of Customs official website, tariff query system or third-party tools, enter the keyword 'steel sheet piling' or 'steel sheet pile', and the system will show 730110. It is recommended to also check the 'Import and Export Tariff' and its notes to confirm whether it meets the definition of steel sheet piling. What is the difference in classification between steel sheet piling and ordinary section steel? Ordinary section steel (such as angle steel, I-beam) if not welded or assembled, is classified under Chapter 72 (such as 7216). Steel sheet piling has interlocks, can interlock with each other, and is used for earth retention, classified under 730110. The key difference lies in the interlocks and use. What elements must be provided when declaring steel sheet piling? Product name, material, specifications and model (including interlock shape), processing technique, use, brand, origin, unit of measurement must be provided. The material should indicate the grade, and the processing technique should state hot-rolled or cold-formed. How to look up the tax rate for steel sheet piling? Tax rates may change. You can check through the 'Import and Export Tariff' on the General Administration of Customs official website, or use the 'China Customs Import and Export Tariff' APP. Enter 730110 to view the MFN rate, general rate, VAT and consumption tax (if applicable). If steel sheet piling is drilled or punched, will the classification change? No. Heading 7301 explicitly includes steel sheet piling 'whether or not drilled, punched or made from assembled elements', so it is still classified under 730110. However, if assembled into structural elements, it may be classified under 7308. Is the classification different for steel sheet piling made of alloy steel? No, it is not different. As long as it meets the definition of steel sheet piling (with interlocks, used for earth retention), whether non-alloy steel or alloy steel, it is classified under 730110. However, if it is alloy steel without interlocks, it is classified under 7228. What is the declared unit of measurement for steel sheet piling? Usually declared by weight (kilograms), or by length (meters), but it must be consistent with the customs declaration form. It is recommended to provide both weight and length for customs verification. If declared by length, the weight per meter must be indicated. Are 'steel sheet piling' and 'iron or steel sheet piling' the same code? Yes. 'Steel sheet piling' and 'iron or steel sheet piling' are the same commodity, both classified under 730110. When declaring, it is recommended to use 'steel sheet piling' or 'iron or steel sheet piling', avoiding confusing names such as 'section steel'.
Q: How to look up the HS code for steel sheet piling?
A: You can use the General Administration of Customs official website, tariff query system or third-party tools, enter the keyword 'steel sheet piling' or 'steel sheet pile', and the system will show 730110. It is recommended to also check the 'Import and Export Tariff' and its notes to confirm whether it meets the definition of steel sheet piling.
Q: What is the difference in classification between steel sheet piling and ordinary section steel?
A: Ordinary section steel (such as angle steel, I-beam) if not welded or assembled, is classified under Chapter 72 (such as 7216). Steel sheet piling has interlocks, can interlock with each other, and is used for earth retention, classified under 730110. The key difference lies in the interlocks and use.
Q: What elements must be provided when declaring steel sheet piling?
A: Product name, material, specifications and model (including interlock shape), processing technique, use, brand, origin, unit of measurement must be provided. The material should indicate the grade, and the processing technique should state hot-rolled or cold-formed.
Q: How to look up the tax rate for steel sheet piling?
A: Tax rates may change. You can check through the 'Import and Export Tariff' on the General Administration of Customs official website, or use the 'China Customs Import and Export Tariff' APP. Enter 730110 to view the MFN rate, general rate, VAT and consumption tax (if applicable).
Q: If steel sheet piling is drilled or punched, will the classification change?
A: No. Heading 7301 explicitly includes steel sheet piling 'whether or not drilled, punched or made from assembled elements', so it is still classified under 730110. However, if assembled into structural elements, it may be classified under 7308.
Q: Is the classification different for steel sheet piling made of alloy steel?
A: No, it is not different. As long as it meets the definition of steel sheet piling (with interlocks, used for earth retention), whether non-alloy steel or alloy steel, it is classified under 730110. However, if it is alloy steel without interlocks, it is classified under 7228.
Q: What is the declared unit of measurement for steel sheet piling?
A: Usually declared by weight (kilograms), or by length (meters), but it must be consistent with the customs declaration form. It is recommended to provide both weight and length for customs verification. If declared by length, the weight per meter must be indicated.
Q: Are 'steel sheet piling' and 'iron or steel sheet piling' the same code?
A: Yes. 'Steel sheet piling' and 'iron or steel sheet piling' are the same commodity, both classified under 730110. When declaring, it is recommended to use 'steel sheet piling' or 'iron or steel sheet piling', avoiding confusing names such as 'section steel'.
⚠️ 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.