Clay Checker Bricks for Regenerators
Perforated clay checker bricks for heat recovery regenerators in glass and steel industries, fired to refractory standards. Under HTS 6902.90.50.10 as clay constructional refractory bricks. Optimize energy efficiency through thermal storage.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If lower-fired for non-refractory pottery use
Non-refractory ceramic ware shifts to later Chapter 69 headings.
If chrome-magnesite clay composites
Magnesia-chrome formulations have dedicated subheadings.
If as specific oven parts
Parts of industrial furnaces may classify in Chapter 84 if exclusively for named ovens.
Not sure which classification is right?
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Import Tips & Compliance
• Specify perforation pattern and dimensions in invoices to confirm constructional design
• Include firing curve certificates showing peak temperatures >1300°C
• Declare as 'refractory constructional goods' explicitly to avoid electrical insulator scrutiny
Related Products under HTS 6902.90.50.10
Clay Refractory Fire Bricks
High-alumina clay fire bricks designed for lining industrial furnaces and kilns, fired after shaping to withstand temperatures exceeding 1500°C. Classified under HTS 6902.90.50.10 as refractory bricks made primarily from clay, excluding siliceous fossil meals. These constructional goods provide thermal insulation and chemical resistance in high-heat environments.
High-Duty Clay Refractory Tiles
Clay-based refractory tiles used for flooring and lining in steel mill reheat furnaces, shaped and fired to endure extreme thermal shock. Falls under HTS 6902.90.50.10 as clay-composed refractory constructional tiles, distinct from siliceous earth products. Ideal for harsh industrial environments requiring durability.
Insulating Clay Refractory Blocks
Lightweight clay refractory blocks with insulating properties for boiler and incinerator construction, fired from shaped clay mixtures. HTS 6902.90.50.10 covers these as clay-based refractory blocks other than siliceous types. They minimize heat loss in high-temperature applications.
Shaped Clay Refractory Anchor Bricks
Specialty clay anchor bricks for securing fiber module linings in furnaces, precision-shaped and high-fired. Classified in HTS 6902.90.50.10 for clay refractory constructional goods. Essential for modular refractory installations in petrochemical plants.
Plastic Clay Refractory Rammer Mix Bricks
Pre-formed bricks from plastic clay ramming mixes for repairing furnace linings, fired after on-site shaping. HTS 6902.90.50.10 applies to these clay refractory blocks. Used in maintenance of glass melting tanks and ladles.