HS Code for Alumina bricks

Alumina bricks are classified under HS code 6902.20. This code is found in Chapter 69, which covers ceramic products, specifically sub-chapter I, which deals with goods of siliceous fossil meals or similar siliceous earths, and refractory goods. Heading 6902 applies to refractory bricks, blocks, tiles, and similar refractory ceramic constructional goods. The specific subheading 6902.20 is used for products containing, by weight, more than 50% of alumina (Al2O3), silica (SiO2), or a mixture or compound of these elements. These bricks are designed to withstand high temperatures in furnaces, kilns, and reactors. The classification is strictly based on the chemical composition of the refractory material and its ability to resist heat, distinguishing it from standard structural clay bricks used in general construction.

Products Included

• High-alumina refractory bricks
• Silica-alumina kiln furniture
• Refractory blocks for glass furnaces
• Alumina-based checker bricks for heat exchangers
• Firebricks with >50% alumina content

Common Misclassification

Alumina bricks are often misclassified under 6901.00, which is for bricks made of fossil meals (like kieselguhr). They are also confused with 6902.10, which is for refractory bricks containing more than 50% magnesium, calcium, or chromium. If the alumina content is less than 50% and the brick is not primarily silica-based, it may fall under 6902.90. Finally, non-refractory ceramic bricks are classified under 6904, which does not account for high-heat resistance.

FAQ

What is the HS code for Alumina bricks?

The HS code for refractory alumina bricks containing more than 50% alumina or silica is 6902.20.

What if the brick is used for a home fireplace?

If the brick is a refractory firebrick designed to withstand high heat, it remains under 6902 regardless of whether the application is industrial or residential.