Chapter 83 covers miscellaneous articles of base metal, including base metal locks, hinges, door and window fittings, safes, office supplies, bells, statues, picture frames, pipe fittings, welding electrodes, welding wire, welding powder, etc. Although these articles are made of base metal, they are not classified in Chapters 72-82 (because those chapters mainly classify by metal material or specific articles), and this chapter specifically addresses miscellaneous articles of base metal with independent functions. Welding powder, as a material for welding, falls within the scope of this chapter. Heading 8311 covers base metal welding electrodes, welding wire, welding rods, welding plates, welding powder and similar materials for welding or spraying, including welding electrodes and welding wire with a base metal core or coated with flux, as well as welding powder made by mixing base metal powder with flux. These materials are used for metal welding, brazing or spraying, by melting to fill joints or surface coatings. However, note that flux when declared separately is classified under 3810, while welding powder, if containing base metal powder, is classified under this heading. Code 831130 has 6 digits: the first 2 digits 83 represent Chapter 83 (miscellaneous articles of base metal); digits 3-4, 11, represent heading 8311 (base metal welding electrodes, welding wire, welding rods, welding plates, welding powder and similar materials for welding or spraying); digits 5-6, 30, represent subheading 831130, specifically welding powder and similar materials for welding or spraying (excluding welding electrodes, welding wire, etc.). The subheading further distinguishes welding powder from other forms of welding materials; welding powder usually refers to powder form, used for specific welding processes such as flame spraying, brazing, etc. Welding powder is classified under 831130 rather than adjacent codes because it is a welding material in the form of base metal powder. If it were welding electrodes or welding wire, it would be classified under 831110 or 831120; if it were separate flux (not containing base metal powder), it would be classified under 3810; if it were precious metal solder, it would be classified under 7106, etc. Welding powder must contain base metal components and be used for welding or spraying, so it is classified under this subheading.
Chapter
Chapter 83 covers miscellaneous articles of base metal, including base metal locks, hinges, door and window fittings, safes, office supplies, bells, statues, picture frames, pipe fittings, welding electrodes, welding wire, welding powder, etc. Although these articles are made of base metal, they are not classified in Chapters 72-82 (because those chapters mainly classify by metal material or specific articles), and this chapter specifically addresses miscellaneous articles of base metal with independent functions. Welding powder, as a material for welding, falls within the scope of this chapter.
Heading
Heading 8311 covers base metal welding electrodes, welding wire, welding rods, welding plates, welding powder and similar materials for welding or spraying, including welding electrodes and welding wire with a base metal core or coated with flux, as well as welding powder made by mixing base metal powder with flux. These materials are used for metal welding, brazing or spraying, by melting to fill joints or surface coatings. However, note that flux when declared separately is classified under 3810, while welding powder, if containing base metal powder, is classified under this heading.
Digit Breakdown
Code 831130 has 6 digits: the first 2 digits 83 represent Chapter 83 (miscellaneous articles of base metal); digits 3-4, 11, represent heading 8311 (base metal welding electrodes, welding wire, welding rods, welding plates, welding powder and similar materials for welding or spraying); digits 5-6, 30, represent subheading 831130, specifically welding powder and similar materials for welding or spraying (excluding welding electrodes, welding wire, etc.). The subheading further distinguishes welding powder from other forms of welding materials; welding powder usually refers to powder form, used for specific welding processes such as flame spraying, brazing, etc.
Classification Basis
Welding powder is classified under 831130 rather than adjacent codes because it is a welding material in the form of base metal powder. If it were welding electrodes or welding wire, it would be classified under 831110 or 831120; if it were separate flux (not containing base metal powder), it would be classified under 3810; if it were precious metal solder, it would be classified under 7106, etc. Welding powder must contain base metal components and be used for welding or spraying, so it is classified under this subheading.
📝 Declaration Elements
Product name: The specific name of the declared commodity, such as "welding powder" or "copper-based welding powder", which must be consistent with the actual product. Material: Explain the base metal components of the welding powder, such as copper, silver, aluminum, nickel, etc. and their alloys, and whether it contains flux. Use: Describe the specific application for welding or spraying, such as "used for copper tube brazing", "used for flame spray repair". Appearance: Describe the particle size, color, and form of the powder, such as "gray powder, particle size -200 mesh". Composition content: List the main metal elements and content percentages, such as "copper 85%, phosphorus 5%, silver 10%". Packaging specifications: Explain the packaging form and net weight, such as "25 kg/drum". Brand: Declare the brand or trademark; if there is no brand, fill in "none". Model: Declare the product model or grade, such as "BCuP-2". Customs declaration example:
Product name: Copper-phosphorus welding powder
Material: Copper-based alloy powder, containing copper 85%, phosphorus 5%, silver 10%
Use: Used for copper tube brazing
Appearance: Gray powder, particle size -200 mesh
Composition content: Copper 85%, phosphorus 5%, silver 10%
Packaging specifications: 25 kg/drum
Brand: None
Model: BCuP-2
HS code: 83113000 Confusing welding powder with flux: flux when declared separately is classified under 3810, while welding powder containing base metal powder is classified under 831130. Ignoring declaration of composition content: failure to provide metal content may make it impossible to determine whether it is a base metal article. Mistakenly declaring the use as "welding" without distinguishing brazing or spraying: different uses may affect subheading determination.
Product name
The specific name of the declared commodity, such as "welding powder" or "copper-based welding powder", which must be consistent with the actual product.
⚠️ Mistakenly declaring it as "flux" or "solder paste", leading to incorrect classification.
Material
Explain the base metal components of the welding powder, such as copper, silver, aluminum, nickel, etc. and their alloys, and whether it contains flux.
⚠️ Writing only "metal powder" without specifying the specific metal, making it impossible to determine classification.
Use
Describe the specific application for welding or spraying, such as "used for copper tube brazing", "used for flame spray repair".
⚠️ Writing generally "for welding" without distinguishing brazing, fusion welding or spraying.
Appearance
Describe the particle size, color, and form of the powder, such as "gray powder, particle size -200 mesh".
⚠️ Ignoring particle size description, which may affect distinction from similar products.
Composition content
List the main metal elements and content percentages, such as "copper 85%, phosphorus 5%, silver 10%".
⚠️ Failure to provide content, making it impossible to determine whether it is a base metal article.
Packaging specifications
Explain the packaging form and net weight, such as "25 kg/drum".
⚠️ Mistakenly declaring it as retail packaging, which may affect the applicable tax rate.
Brand
Declare the brand or trademark; if there is no brand, fill in "none".
⚠️ Failure to declare the brand, leading to intellectual property risks.
Model
Declare the product model or grade, such as "BCuP-2".
⚠️ The model does not match the composition, triggering customs questioning.
Confusing welding powder with flux: flux when declared separately is classified under 3810, while welding powder containing base metal powder is classified under 831130.
Ignoring declaration of composition content: failure to provide metal content may make it impossible to determine whether it is a base metal article.
Mistakenly declaring the use as "welding" without distinguishing brazing or spraying: different uses may affect subheading determination.
🎯 Classification Logic
Core basis for classification: 1) The product is in powder form; 2) The main component is base metal (such as copper, silver, aluminum, etc.) or its alloy; 3) It is used for welding, brazing or spraying. If the base metal content in the powder exceeds 50%, it is usually classified under 831130. If it is precious metal powder, it is classified under Chapter 71. If it is a single metal powder but not mixed with flux, it may be classified under Chapter 74, etc. However, according to the notes to Chapter 83, welding materials are preferentially classified under 8311. 831110 Base metal welding electrodes: Welding electrodes are in rod form, usually with coating, while welding powder is in powder form, with different forms. 831120 Base metal welding wire: Welding wire is in wire form, often coiled, while welding powder is powder, with obvious physical form differences. 381090 Other flux: Flux does not contain base metal powder; its main components are borax, fluorides, etc., while welding powder contains base metal. 710610 Silver powder: Silver powder is precious metal powder; even if used for welding, it is classified under Chapter 71, while welding powder is base metal-based. 740610 Copper powder: Copper powder is a single metal powder, not mixed with flux, and not specifically used for welding, while welding powder is a mixed powder for welding. Is it in powder form? Is the main component base metal? Is it used for welding, brazing or spraying? Does it contain flux? If so, is it mixed with base metal powder? Is it flux declared separately? If so, it should be classified under 3810.
Basis
Core basis for classification: 1) The product is in powder form; 2) The main component is base metal (such as copper, silver, aluminum, etc.) or its alloy; 3) It is used for welding, brazing or spraying. If the base metal content in the powder exceeds 50%, it is usually classified under 831130. If it is precious metal powder, it is classified under Chapter 71. If it is a single metal powder but not mixed with flux, it may be classified under Chapter 74, etc. However, according to the notes to Chapter 83, welding materials are preferentially classified under 8311.
Confused Codes：
831110 - Base metal welding electrodes
Welding electrodes are in rod form, usually with coating, while welding powder is in powder form, with different forms.
831120 - Base metal welding wire
Welding wire is in wire form, often coiled, while welding powder is powder, with obvious physical form differences.
381090 - Other flux
Flux does not contain base metal powder; its main components are borax, fluorides, etc., while welding powder contains base metal.
710610 - Silver powder
Silver powder is precious metal powder; even if used for welding, it is classified under Chapter 71, while welding powder is base metal-based.
740610 - Copper powder
Copper powder is a single metal powder, not mixed with flux, and not specifically used for welding, while welding powder is a mixed powder for welding.
Self-Check：
✓ Is it in powder form?
✓ Is the main component base metal?
✓ Is it used for welding, brazing or spraying?
✓ Does it contain flux? If so, is it mixed with base metal powder?
✓ Is it flux declared separately? If so, it should be classified under 3810.
❓ FAQ
What is the difference between welding powder and flux? Are the HS codes the same? Welding powder is base metal powder, possibly mixed with flux, used for welding filler; flux is a chemical fluxing agent and does not contain base metal powder. Welding powder is classified under 831130, and flux under 381090. If the flux in welding powder is only used as a coating, it is still classified under 831130. How can I inquire about the HS code for welding powder? You can look up Chapter 83, heading 8311 in China Customs' Import and Export Tariff, or use the customs classification inquiry system and enter the keyword "welding powder". You may also refer to the Explanatory Notes to the Tariff for the interpretation of 8311. What are the declaration elements for welding powder? Usually include product name, material, use, appearance, composition content, packaging specifications, brand, model, etc. The specific requirements are subject to customs requirements, and the composition content must be accurate. Welding powder contains silver. Should it be classified under 831130 or 710610? If the silver content is relatively high and it is the main component, it may be classified under 710610 (silver powder); but if it is base metal-based welding powder (such as copper-phosphorus-silver welding powder), silver is only an added element, and it is still classified under 831130. The key is the main metal component. What is the import tax rate for welding powder? Tax rates change, so please consult the latest Import and Export Tariff or consult a customs broker. Generally, the most-favored-nation tax rate is around 5-10%, but the actual rate shall prevail. What regulatory conditions are required for exporting welding powder? Generally there are no special regulatory conditions, but if it contains precious metals or controlled substances, a license may be required. It is recommended to check the customs regulatory condition codes. Does the packaging specification of welding powder affect classification? Usually it does not affect classification, but if it is retail packaging, different tax rates may be involved. Classification is mainly based on composition and use. What is the classification difference between welding powder and metal powder? If metal powder is not used for welding, it is classified under Chapter 74, etc.; welding powder is specifically used for welding and may be mixed with flux, so it is classified under 831130.
Q: What is the difference between welding powder and flux? Are the HS codes the same?
A: Welding powder is base metal powder, possibly mixed with flux, used for welding filler; flux is a chemical fluxing agent and does not contain base metal powder. Welding powder is classified under 831130, and flux under 381090. If the flux in welding powder is only used as a coating, it is still classified under 831130.
Q: How can I inquire about the HS code for welding powder?
A: You can look up Chapter 83, heading 8311 in China Customs' Import and Export Tariff, or use the customs classification inquiry system and enter the keyword "welding powder". You may also refer to the Explanatory Notes to the Tariff for the interpretation of 8311.
Q: What are the declaration elements for welding powder?
A: Usually include product name, material, use, appearance, composition content, packaging specifications, brand, model, etc. The specific requirements are subject to customs requirements, and the composition content must be accurate.
Q: Welding powder contains silver. Should it be classified under 831130 or 710610?
A: If the silver content is relatively high and it is the main component, it may be classified under 710610 (silver powder); but if it is base metal-based welding powder (such as copper-phosphorus-silver welding powder), silver is only an added element, and it is still classified under 831130. The key is the main metal component.
Q: What is the import tax rate for welding powder?
A: Tax rates change, so please consult the latest Import and Export Tariff or consult a customs broker. Generally, the most-favored-nation tax rate is around 5-10%, but the actual rate shall prevail.
Q: What regulatory conditions are required for exporting welding powder?
A: Generally there are no special regulatory conditions, but if it contains precious metals or controlled substances, a license may be required. It is recommended to check the customs regulatory condition codes.
Q: Does the packaging specification of welding powder affect classification?
A: Usually it does not affect classification, but if it is retail packaging, different tax rates may be involved. Classification is mainly based on composition and use.
Q: What is the classification difference between welding powder and metal powder?
A: If metal powder is not used for welding, it is classified under Chapter 74, etc.; welding powder is specifically used for welding and may be mixed with flux, so it is classified under 831130.
⚠️ 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.