Fused Alumina Refractory Block
Fused alumina refractory blocks are dense blocks made from fused alumina with over 90% Al2O3 content, fired and shaped for use in blast furnace hearths. They provide superior abrasion resistance and are used in heavy industrial construction for high-wear zones, qualifying as refractory ceramic constructional goods.
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 blocks are not constructional but other refractory articles
Refractory blocks used in non-constructional applications, such as crucibles, may be classified under this alternative.
If the blocks contain more than 50% of magnesia, lime or chromium oxide
This alternative covers refractory blocks with different chemical compositions, such as chrome-magnesite blocks.
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
• Document the alumina content, which must exceed 50% by weight, with a manufacturer's certificate
• Verify that the blocks are fired after shaping to meet Chapter 69 criteria
• Ensure the blocks are intended for constructional use, as other refractory articles may be classified under different items
Related Products under Tariff item 6902.20.00
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