Castable Refractory Mix for Boilers
A pourable, high-purity alumina castable for repairing boiler walls and combustion chambers. This is a refractory concrete that cures to withstand rapid temperature changes, falling under tariff item 3816.00.00, and is not a product of heading 38.01.
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 castable is used for non-refractory applications.
Other chemical preparations may apply if not specifically for refractory use.
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
• Ensure the product is not a separate chemically defined compound, which is excluded from Chapter 38
• Provide curing instructions to demonstrate refractory use
• Check if the product contains any hazardous materials requiring special import permits
Related Products under Tariff item 3816.00.00
Andalusite-Based Refractory Guniting Mix
Pneumatic-applied mix with andalusite for wear-resistant coatings in blast furnaces. This product is a refractory composition other than dolomite ramming mix, falling under tariff item 3816.00.00, and is not a product of heading 38.01.
Basic Dolomite Ramming Mix
A refractory composition primarily consisting of dead-burned dolomite, used for ramming induction furnace linings in steelmaking. This product is a dolomite ramming mix, which is explicitly included in tariff item 3816.00.00, and is not a product of heading 38.01.
Chrome-Free Magnesia Refractory Cement
Eco-friendly cement using magnesia and spinel for ladle linings, avoiding hexavalent chrome risks. This is a refractory cement other than dolomite ramming mix, falling under tariff item 3816.00.00, and is not a product of heading 38.01.
Dead Burnt Dolomite Ramming Mix
High-fired dead burnt dolomite specifically processed into ramming mix for cupola furnace linings in iron foundries. This is a dolomite ramming mix, directly matching the description of tariff item 3816.00.00, and is not a product of heading 38.01.
Dolomite-Silica Ramming Mix
Blended ramming mix for coreless induction furnaces, modified with silica in addition to dolomite. This product is a refractory composition other than pure dolomite ramming mix, falling under tariff item 3816.00.00, and is not a product of heading 38.01.
Furnace Bottom Dolomite Ramming Mix
Coarse-grained dolomite ramming mix for initial lining of induction furnace bottoms, offering excellent thermal shock resistance. This product is a dolomite ramming mix, which is specifically named in tariff item 3816.00.00, and is not a product of heading 38.01.