90% Alumina Refractory Bricks
90% alumina refractory bricks deliver premium purity for critical zones in aluminum smelters and cement kilns, resisting molten metal and alkali corrosion. High fired density ensures longevity. Standard 'other' classification under HTS 6902.90.10.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If exceeding 50% alumina threshold
Alumina concentration levels determine precise 6902 placement.
If artificial corundum base material
Synthetic aluminum oxide classifies under Chapter 28 chemicals.
If porcelain-like finish for lab equipment
Low absorption white bodies shift to labware in 6909.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• High purity requires clean bill of lading; avoid contamination claims
• Certify for food-grade contact if dual-use in processing equipment
• Declare exact Al2O3 percentage for anti-dumping consideration
Related Products under HTS 6902.90.10
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Chrome-Magnesite Refractory Bricks
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Andalusite Refractory Bricks
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Bauxite-Based Refractory Bricks
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