High-Alumina Refractory Cement
A cement composition primarily made from calcined alumina and calcium aluminate, designed for high-temperature applications in furnaces and kilns. It falls under HTS 3816.00.20 as a refractory cement other than those in heading 3801, providing exceptional resistance to thermal shock and corrosion. Used in lining steel ladles and rotary kilns.
Import Duty Rates by Country of Origin
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 hydraulic lime-based without refractory properties
Non-refractory cements fall under Chapter 25 as mineral substances, lacking high-temp resistance.
If specifically dolomite ramming mix
Dolomite-based mixes have dedicated subheading; pure alumina cements go to 'other'.
If pre-formed into refractory bricks rather than powder/cement
Finished refractory articles of ceramics are classified by shape in Chapter 69, not as compositions.
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Import Tips & Compliance
• Verify chemical composition meets refractory standards (min. 50% alumina) with lab certificates to avoid misclassification
• Include safety data sheets (SDS) for hazardous components like silica; ensure proper packaging for bulk shipments
Related Products under HTS 3816.00.20
Andalusite-Based Refractory Guniting Mix
Pneumatic-applied mix with andalusite for wear-resistant coatings in blast furnaces. Classified HTS 3816.00.20 as other refractory compositions, high mullite formation for thermal stability.
Silicon Carbide Refractory Mortar
Abrasion-resistant mortar with SiC grains for cyclone burners and burners. HTS 3816.00.20 other mortars, extreme hardness at 1500°C.
Dolomite-Silica Ramming Mix
Blended ramming for coreless induction furnaces, near 3816.00.10 but 'other' if modified. HTS 3816.00.20.
Bauxite Grain Refractory Concrete
Aggregate bauxite concrete for ladle impact zones.
Mullite Refractory Castable
Synthetic mullite for petrochemical heaters.
Kaolin Clay Refractory Mortar
High-purity kaolin for pottery kilns.