Chapter 83 belongs to the base metal products category in the HS classification system, covering articles of base metal not elsewhere specified or included, such as structural components for construction, containers, stranded wire, chains, nails, tools, cutlery, etc. This chapter emphasizes that the goods are mainly made of base metal and are not classified in Chapters 72-82 (raw materials, simply worked products, tools, etc.). Steel hoses, as steel finished products, fall into this chapter if not more specifically classified. Heading 8307 specifically covers hoses of base metal, whether or not with fittings. Hoses refer to flexible tubular products used for conveying gases, liquids, or solid particles, usually made by spirally winding or corrugating metal strip. This heading includes hoses of base metals such as steel, copper, and aluminum, but excludes rigid metal pipes (classified in Chapter 73, etc.) or hoses with obvious mechanical devices. HS code 830710 is a 6-digit subheading. The first 2 digits "83" represent Chapter 83 (articles of base metal); digits 3-4 "07" represent heading 8307 (hoses of base metal); digits 5-6 "10" represent subheading 8307.10, specifically "hoses of iron or steel". Therefore, this code specifically refers to hoses made of iron or steel, whether or not with fittings such as connectors or flanges. If the hose is made of other base metals (such as copper or aluminum), it is classified under 8307.90. Steel hoses are classified under 830710 because they are made of iron or steel and are flexible hoses, meeting the description of heading 8307. They are not classified under Chapter 73 (articles of iron or steel) as pipes, because pipes in Chapter 73 generally refer to rigid pipes; nor are they classified under Chapter 84 as machine parts, unless the hose is a dedicated part of a machine and constitutes a machine feature. Therefore, 830710 is the most direct and specific classification.
Chapter
Chapter 83 belongs to the base metal products category in the HS classification system, covering articles of base metal not elsewhere specified or included, such as structural components for construction, containers, stranded wire, chains, nails, tools, cutlery, etc. This chapter emphasizes that the goods are mainly made of base metal and are not classified in Chapters 72-82 (raw materials, simply worked products, tools, etc.). Steel hoses, as steel finished products, fall into this chapter if not more specifically classified.
Heading
Heading 8307 specifically covers hoses of base metal, whether or not with fittings. Hoses refer to flexible tubular products used for conveying gases, liquids, or solid particles, usually made by spirally winding or corrugating metal strip. This heading includes hoses of base metals such as steel, copper, and aluminum, but excludes rigid metal pipes (classified in Chapter 73, etc.) or hoses with obvious mechanical devices.
Digit Breakdown
HS code 830710 is a 6-digit subheading. The first 2 digits "83" represent Chapter 83 (articles of base metal); digits 3-4 "07" represent heading 8307 (hoses of base metal); digits 5-6 "10" represent subheading 8307.10, specifically "hoses of iron or steel". Therefore, this code specifically refers to hoses made of iron or steel, whether or not with fittings such as connectors or flanges. If the hose is made of other base metals (such as copper or aluminum), it is classified under 8307.90.
Classification Basis
Steel hoses are classified under 830710 because they are made of iron or steel and are flexible hoses, meeting the description of heading 8307. They are not classified under Chapter 73 (articles of iron or steel) as pipes, because pipes in Chapter 73 generally refer to rigid pipes; nor are they classified under Chapter 84 as machine parts, unless the hose is a dedicated part of a machine and constitutes a machine feature. Therefore, 830710 is the most direct and specific classification.
📝 Declaration Elements
Product Name: Declare the Chinese and foreign language names of the goods, which should accurately reflect the product attributes, such as "steel hose" or "stainless steel corrugated hose". Material: Clearly specify the main material of the hose, such as "steel", "stainless steel", and indicate the grade (such as 304, 316) to assist classification. Structure: Describe the manufacturing process and structure of the hose, such as "spiral corrugated", "annular corrugated", "braided mesh sleeve", etc., to distinguish different types. Use: Explain the main use of the hose, such as "conveying liquids", "protecting cables", "vibration-damping connection", etc., to help confirm classification. Whether with fittings: Declare whether it has fittings such as connectors, flanges, threads, and the material and type of the fittings. Specifications and dimensions: Declare the inner diameter, outer diameter, length, wall thickness, and other dimensional parameters of the hose, as well as the pressure rating. Brand: Declare the manufacturer or brand name; if there is no brand, indicate "no brand". Model: Declare the model or item number of the product for easy identification and inspection. Product Name: Stainless steel corrugated hose; Material: Stainless steel 304; Structure: Spiral corrugated, with stainless steel braided mesh sleeve; Use: For conveying high-temperature liquids; Whether with fittings: Both ends with carbon steel flanges; Specifications and dimensions: Inner diameter 50mm, outer diameter 65mm, length 1000mm; Brand: No brand; Model: DN50-1000. Material declaration is unclear, such as writing only "metal" without distinguishing steel from copper or aluminum, which may lead to classification errors. Ignoring the structure description and declaring a corrugated hose as an ordinary steel pipe affects classification. Fittings not declared may be deemed by customs as a complete machine or parts, changing the classification.
Product Name
Declare the Chinese and foreign language names of the goods, which should accurately reflect the product attributes, such as "steel hose" or "stainless steel corrugated hose".
⚠️ Writing only "hose" without indicating the material, or incorrectly writing "metal hose" without distinguishing the type of base metal.
Material
Clearly specify the main material of the hose, such as "steel", "stainless steel", and indicate the grade (such as 304, 316) to assist classification.
⚠️ Writing only "metal" or "iron", without distinguishing steel from other base metals such as copper or aluminum.
Structure
Describe the manufacturing process and structure of the hose, such as "spiral corrugated", "annular corrugated", "braided mesh sleeve", etc., to distinguish different types.
⚠️ Ignoring the structure description, making it impossible to determine whether it is a hose or a rigid pipe.
Use
Explain the main use of the hose, such as "conveying liquids", "protecting cables", "vibration-damping connection", etc., to help confirm classification.
⚠️ Use description is too general, such as "industrial use", without being specific.
Whether with fittings
Declare whether it has fittings such as connectors, flanges, threads, and the material and type of the fittings.
⚠️ Failing to declare fittings, leading to customs questioning the classification or customs value.
Specifications and dimensions
Declare the inner diameter, outer diameter, length, wall thickness, and other dimensional parameters of the hose, as well as the pressure rating.
⚠️ Writing only "various specifications" without providing specific values.
Brand
Declare the manufacturer or brand name; if there is no brand, indicate "no brand".
⚠️ Confusing the brand with the manufacturer, or omitting the brand.
Model
Declare the model or item number of the product for easy identification and inspection.
⚠️ Model is incomplete or inconsistent with the actual product.
Example： Product Name: Stainless steel corrugated hose; Material: Stainless steel 304; Structure: Spiral corrugated, with stainless steel braided mesh sleeve; Use: For conveying high-temperature liquids; Whether with fittings: Both ends with carbon steel flanges; Specifications and dimensions: Inner diameter 50mm, outer diameter 65mm, length 1000mm; Brand: No brand; Model: DN50-1000.
Common Mistakes：
Material declaration is unclear, such as writing only "metal" without distinguishing steel from copper or aluminum, which may lead to classification errors.
Ignoring the structure description and declaring a corrugated hose as an ordinary steel pipe affects classification.
Fittings not declared may be deemed by customs as a complete machine or parts, changing the classification.
🎯 Classification Logic
The core criteria for classification are: whether the product is a hose of base metal, and whether the material is iron or steel. First, confirm that the product is a hose (flexible), not a rigid pipe; second, the material is iron or steel (including stainless steel); finally, check whether it has fittings, as fittings do not affect classification. If the hose is a dedicated part of a machine and meets the notes to Chapter 84, it may be classified in Chapter 84, but generally hoses as general-purpose parts are classified under 8307. 830790 Other hoses of base metal: Material is not iron or steel, such as hoses of copper, aluminum, nickel, or other base metals. If the hose material is copper, it is classified under 830790, not 830710. 7306 Other tubes, pipes and hollow profiles of iron or steel: 7306 covers rigid iron or steel pipes that are not flexible, usually used for structural or pipeline engineering; while 830710 covers flexible hoses used for flexible connections. 7307 Tube or pipe fittings of iron or steel: 7307 covers fittings such as pipe connectors and flanges. Even if declared together with a hose, if the fittings are declared separately, they are classified under 7307; if assembled with the hose, the hose is classified under 830710 and the fittings are not separately classified. 848790 Machine parts: If the hose is a dedicated part of a specific machine and meets the notes to Chapter 84, it may be classified under 848790. However, general-purpose hoses are still classified under 830710. 391739 Plastic hoses: Material is plastic. Even with a metal reinforcement layer, if plastic is the essential character, it is classified under 391739, not 830710. Is the material iron or steel? Is it a flexible hose? Does it have fittings? Are the fittings declared separately? Is it a dedicated part of a machine of Chapter 84? Is it combined with other materials? Is the essential character iron or steel?
Basis
The core criteria for classification are: whether the product is a hose of base metal, and whether the material is iron or steel. First, confirm that the product is a hose (flexible), not a rigid pipe; second, the material is iron or steel (including stainless steel); finally, check whether it has fittings, as fittings do not affect classification. If the hose is a dedicated part of a machine and meets the notes to Chapter 84, it may be classified in Chapter 84, but generally hoses as general-purpose parts are classified under 8307.
Confused Codes：
830790 - Other hoses of base metal
Material is not iron or steel, such as hoses of copper, aluminum, nickel, or other base metals. If the hose material is copper, it is classified under 830790, not 830710.
7306 - Other tubes, pipes and hollow profiles of iron or steel
7306 covers rigid iron or steel pipes that are not flexible, usually used for structural or pipeline engineering; while 830710 covers flexible hoses used for flexible connections.
7307 - Tube or pipe fittings of iron or steel
7307 covers fittings such as pipe connectors and flanges. Even if declared together with a hose, if the fittings are declared separately, they are classified under 7307; if assembled with the hose, the hose is classified under 830710 and the fittings are not separately classified.
848790 - Machine parts
If the hose is a dedicated part of a specific machine and meets the notes to Chapter 84, it may be classified under 848790. However, general-purpose hoses are still classified under 830710.
391739 - Plastic hoses
Material is plastic. Even with a metal reinforcement layer, if plastic is the essential character, it is classified under 391739, not 830710.
Self-Check：
✓ Is the material iron or steel?
✓ Is it a flexible hose?
✓ Does it have fittings? Are the fittings declared separately?
✓ Is it a dedicated part of a machine of Chapter 84?
✓ Is it combined with other materials? Is the essential character iron or steel?
❓ FAQ
How to find the HS code for steel hoses? First confirm that the product is a hose of base metal and the material is iron or steel. Then refer to Chapter 83 of the HS code, heading 8307, subheading 830710. You can use the Customs Administration's "Import and Export Tariff" or online HS code query tools, entering keywords such as "steel hose" or "stainless steel corrugated pipe" for search. Are stainless steel hoses and carbon steel hoses classified under the same code? Yes, both are hoses of iron or steel and are classified under 830710. However, note that if a stainless steel hose contains special alloying elements and has other characteristics, it is still classified under this code, because the HS code does not further subdivide the type of steel. How are hoses with fittings classified? Hoses with fittings are still classified under 830710, because the fittings are accessories of the hose, and heading 8307 includes hoses with fittings. However, if the fittings are imported separately, they are classified under 7307. If the hose and fittings are assembled to form a dedicated machine part, they may be classified under Chapter 84. How to distinguish steel hoses from plastic hoses? Mainly by material. If the main body of the hose is iron or steel, even with a plastic lining, it is still classified under 830710; if the main body is plastic, even with a metal reinforcement layer, it is generally classified under 391739. If the essential character cannot be determined, it can be judged according to General Rule of Interpretation 3 (b). What are the customs regulatory conditions for steel hoses? Regulatory conditions vary by country. Generally, steel hoses have no special regulatory conditions, but may involve export tax rebates, tariffs, etc. For details, consult the "Import and Export Tariff of the People's Republic of China" and Customs Administration announcements. It is recommended to consult a customs broker or customs. What elements should be noted when declaring steel hoses? It is necessary to declare the product name, material, structure, use, whether with fittings, specifications and dimensions, brand, model, etc. The material should be clearly specified as steel or stainless steel; the structure should describe corrugation or braiding; the use should be specific. Avoid general declarations to reduce inspection risks. What is the difference between steel hoses and corrugated pipes? Corrugated pipes are a type of hose, usually referring to hoses with corrugated walls, belonging to the category of hoses. In the HS code, steel corrugated pipes are classified under 830710, while other corrugated pipes such as plastic corrugated pipes are classified under 3917. Therefore, corrugated pipe is a structural form of hose, and classification is still based on material and hose attributes. If a steel hose is used in automobiles, is it classified as an automobile part? If the steel hose is a dedicated automobile part and meets the notes to Chapter 87, it may be classified under 8708. However, general-purpose hoses are still classified under 830710. The criterion is whether the hose is specially designed for automobiles and whether it constitutes an inseparable part of the automobile. It is recommended to provide the automobile manufacturer's part number or technical data.
Q: How to find the HS code for steel hoses?
A: First confirm that the product is a hose of base metal and the material is iron or steel. Then refer to Chapter 83 of the HS code, heading 8307, subheading 830710. You can use the Customs Administration's "Import and Export Tariff" or online HS code query tools, entering keywords such as "steel hose" or "stainless steel corrugated pipe" for search.
Q: Are stainless steel hoses and carbon steel hoses classified under the same code?
A: Yes, both are hoses of iron or steel and are classified under 830710. However, note that if a stainless steel hose contains special alloying elements and has other characteristics, it is still classified under this code, because the HS code does not further subdivide the type of steel.
Q: How are hoses with fittings classified?
A: Hoses with fittings are still classified under 830710, because the fittings are accessories of the hose, and heading 8307 includes hoses with fittings. However, if the fittings are imported separately, they are classified under 7307. If the hose and fittings are assembled to form a dedicated machine part, they may be classified under Chapter 84.
Q: How to distinguish steel hoses from plastic hoses?
A: Mainly by material. If the main body of the hose is iron or steel, even with a plastic lining, it is still classified under 830710; if the main body is plastic, even with a metal reinforcement layer, it is generally classified under 391739. If the essential character cannot be determined, it can be judged according to General Rule of Interpretation 3 (b).
Q: What are the customs regulatory conditions for steel hoses?
A: Regulatory conditions vary by country. Generally, steel hoses have no special regulatory conditions, but may involve export tax rebates, tariffs, etc. For details, consult the "Import and Export Tariff of the People's Republic of China" and Customs Administration announcements. It is recommended to consult a customs broker or customs.
Q: What elements should be noted when declaring steel hoses?
A: It is necessary to declare the product name, material, structure, use, whether with fittings, specifications and dimensions, brand, model, etc. The material should be clearly specified as steel or stainless steel; the structure should describe corrugation or braiding; the use should be specific. Avoid general declarations to reduce inspection risks.
Q: What is the difference between steel hoses and corrugated pipes?
A: Corrugated pipes are a type of hose, usually referring to hoses with corrugated walls, belonging to the category of hoses. In the HS code, steel corrugated pipes are classified under 830710, while other corrugated pipes such as plastic corrugated pipes are classified under 3917. Therefore, corrugated pipe is a structural form of hose, and classification is still based on material and hose attributes.
Q: If a steel hose is used in automobiles, is it classified as an automobile part?
A: If the steel hose is a dedicated automobile part and meets the notes to Chapter 87, it may be classified under 8708. However, general-purpose hoses are still classified under 830710. The criterion is whether the hose is specially designed for automobiles and whether it constitutes an inseparable part of the automobile. It is recommended to provide the automobile manufacturer's part number or technical data.
⚠️ 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.