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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not specifically clay-composed
Other refractory ceramic bricks without predominant clay fall into residual subheading.
If metallic anchors rather than pure ceramic
Hybrid metal-ceramic products classify by predominant material in Chapter 73.
If imported as parts of industrial machinery
Specific machine parts may take Chapter 84/85 provisions over general construction goods.
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Import Tips & Compliance
• Provide engineering drawings showing shaped constructional design to differentiate from raw shapes
• Certify pyrometric cone equivalent (PCE >30) to prove high-temperature refractory grade
• Avoid bulk packing resembling raw clay; use palletized units for construction goods status
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.
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.
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.