Tungsten Nitride WN Powder
Tungsten nitride (WN) powder is a chemically defined nitride used as a diffusion barrier in semiconductors and for decorative coatings. It is classified under 2850.00.00 as a nitride, not a carbide.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the powder contains tungsten carbide
Carbides are excluded from heading 28.50 and fall under heading 28.49.
If the powder is a mixture not chemically defined
Mixtures of chemicals not elsewhere specified may fall under Chapter 38.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Verify the powder is free of carbide compounds to avoid reclassification
• Provide technical data sheets to the CBSA showing chemical composition
• Check if the powder is subject to export controls from the country of origin
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