Fireclay Refractory Bricks
Fireclay refractory bricks, made from high-temperature-fired clay with 30-45% alumina, serve as general-purpose linings in boilers and incinerators. They provide cost-effective thermal insulation and slag resistance. Classified in HTS 6902.90.10 as standard 'other' 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 containing 30-45% alumina by weight
Fireclay's alumina range matches specific aluminous refractory subheadings.
If glazed/decorated for ornamental building use
Lab/porcelain wares in Chapter 69 shift if not purely refractory.
If set in bulk for construction without firing proof
Chapter 68 covers unglazed construction panels if ceramic firing unproven.
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Import Tips & Compliance
• Certify water absorption and pyrometric cone equivalent (PCE) values for authenticity
• Bundle with installation manuals but avoid set packaging to prevent furniture classification
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