HTS US: 2952.XX.XXXX
Description
HTS Code 2952 encompasses carbides in all forms, whether chemically defined or not. Carbides are compounds composed of carbon and a less electronegative element, often metals or metalloids. This heading includes various carbides such as calcium carbide, silicon carbide, and other carbides used industrially in applications like steel manufacturing, abrasives, and chemical synthesis.
These carbides may be presented in powder, lumps, or other physical forms and can include mixtures or compounds where carbon is combined with elements such as calcium, silicon, boron, tungsten, and titanium.
Code Hierarchy
- Section VI: Products of the Chemical or Allied Industries (Chapters 28-38)
- Chapter 29: Organic Chemicals
- Heading 2952: Carbides, Whether Or Not Chemically Defined
- US HTS Code (10-digit):
2952.XX.XXXX– Subdivisions specify the exact type and form of carbide.
Detailed Breakdown of Subheadings
The HTS heading 2952 is subdivided into specific subheadings based on the type of carbide and its chemical definition. Below is a representative breakdown of common subheadings and their typical descriptions:
| HS/HTS Code | Description | Examples & Notes |
|---|---|---|
| 2952.10 | Calcium Carbide | Calcium carbide used primarily in acetylene gas production and steel manufacturing. |
2952.10.0000 |
Pure calcium carbide in any physical form | Typically supplied as lumps or granules. |
| 2952.20 | Silicon Carbide | Used as an abrasive and in high-performance ceramics and semiconductors. |
2952.20.0000 |
Silicon carbide, including synthetic forms | Often in powder or grit form for industrial use. |
| 2952.90 | Other Carbides | Includes carbides of boron, tungsten, titanium, and other metals or metalloids. |
2952.90.1000 |
Boron carbide | Used in armor and abrasives. |
2952.90.2000 |
Tungsten carbide | Commonly used in cutting tools and wear-resistant applications. |
2952.90.3000 |
Titanium carbide | Used for hardness enhancement in alloys. |
2952.90.9000 |
Other carbides not specified elsewhere | May include mixtures or less common carbides. |
What is NOT Classified Here?
To avoid classification errors, note the following exclusions:
- Carbide-containing alloys or composites where carbides are part of a metal matrix may be classified under different headings.
- Organic chemicals containing carbides bonded within complex molecules fall under other chemical headings.
- Carbides used in finished products such as cutting tools or abrasives are generally classified under headings for those finished goods.
Notes
- Regulatory Compliance: Importation and handling of carbides are subject to safety and environmental regulations due to their chemical reactivity, especially calcium carbide which reacts violently with water.
- Duty Rates: Duty rates for HTS 2952 vary by specific subheading and country of origin. Importers should verify current rates and any applicable trade agreements.
- Product Form: Physical form (powder, lumps, granules) may influence classification and import requirements.
Declaration Example
Product: Shipment of silicon carbide powder used in abrasive manufacturing.US HTS Code:
2952.20.0000Unit of Quantity: Kilogram (kg)
General Duty Rate: Check current USHTS (Typically low to moderate tariffs)
Additional Requirements: Compliance with chemical safety and environmental regulations.
Related HTS Codes
- HTS 2849: Carbides, nitrides, and borides of metals, often in powdered or compacted forms.
- HTS 2818: Inorganic acids and inorganic oxygen compounds, which may be used alongside carbides in chemical processes.
- HTS 2846: Rare earth metals and scandium, sometimes used in carbide manufacturing.
- HTS 8207: Tools and implements of metal containing carbide tips, classified as finished goods.
