Rotary Kiln Alumina Brick
Phosphate-bonded alumina bricks (>70% Al2O3) fired for cement rotary kiln burning zones. Resists alkali attack and coating formation. 6902.20.50 classification as other high-alumina refractory bricks.
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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 backup lining or cooler zone bricks
Lower performance requirements may classify under 6903.
If industrial ceramic lab crucibles
Smaller scale similar-composition items become lab ware.
If unfired calcined bauxite aggregate
Raw refractory materials classify under Chapter 25.
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Import Tips & Compliance
• Document phosphate bonding system and firing schedule
• Specify burning zone location and temperature profile
• Confirm brick curvature matches kiln diameter specs
Related Products under HTS 6902.20.50
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