High-Density Magnesite Brick for Cement Rotary Kilns
High-density magnesite bricks (>90% MgO) for transition and burning zones in cement rotary kilns, fired for alkali and abrasion resistance. Essential for high-temperature clinker production environments. Classified in 6902.10.10.00 as magnesite refractory constructional goods.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If magnesia-spinel or hercynite types
Spinel additions change composition away from pure magnesite classification.
If for general industrial furnaces
Lower temp applications may classify as other refractory ceramic goods.
If thinner than 3.2 cm for tiles
Thin sections meeting tile criteria shift from bricks to refractory tiles.
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Import Tips & Compliance
• Certify density and porosity per ASTM C20 for kiln-grade quality
• Include kiln zone application details
• Beware of thickness exceeding tile definitions
Related Products under HTS 6902.10.10.00
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