Products
Product Classification Guide

HS Code for Refractory bricks

6902.20 Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; containing by weight more than 50% of alumina (Al2o3), of silica (SiO2) or of a mixture or compound of these
View full HS code details

Refractory bricks under HS code 6902.20 are defined by their ability to withstand temperatures exceeding 1,500 degrees Celsius and their specific chemical composition. This code is reserved for ceramic constructional goods containing more than 50% by weight of alumina (Al2O3), silica (SiO2), or a mixture of both. These materials are essential for lining furnaces, kilns, and reactors in the steel, cement, and glass industries. The classification depends strictly on the chemical analysis of the brick. If the alumina or silica content falls below the 50% threshold, or if other elements like magnesium or chromium predominate, the product must be classified elsewhere within heading 6902. The manufacturing process involves high-pressure pressing followed by firing at high temperatures to create a ceramic bond. These bricks are valued for their thermal stability, resistance to chemical corrosion from slag, and structural integrity under extreme heat loads.

Products Included

  • High-alumina refractory bricks
  • Silica bricks for coke ovens
  • Fireclay bricks with >50% Al2O3/SiO2
  • Refractory blocks for glass furnace crowns
  • Alumina-silica checker bricks

Common Misclassification

The most common misclassification occurs with HS code 6902.10, which is for bricks containing more than 50% of magnesium, calcium, or chromium. Importers also confuse these with HS code 6810, which covers non-refractory cement or concrete bricks. Additionally, if the bricks are not fired (chemically bonded only), they might be incorrectly placed in 3816.00, though 6902 generally requires a ceramic bond formed by heat.

FAQ

What is the HS code for refractory bricks?

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

How do I distinguish between 6902.10 and 6902.20?

Classification depends on chemical weight; 6902.10 is for magnesite/chromite-based bricks, while 6902.20 is for alumina/silica-based bricks.

Alternative HS Codes

6902.90 6902.10

Frequently Asked Questions

What is the HS code for Refractory bricks?

The HS code for Refractory bricks is 690220 (Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; containing by weight more than 50% of alumina (Al2o3), of silica (SiO2) or of a mixture or compound of these).

How do I classify Refractory bricks for customs?

Refractory bricks is classified under HS code 690220 — Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods; containing by weight more than 50% of alumina (Al2o3), of silica (SiO2) or of a mixture or compound of these. This is a 6-digit subheading level code.

Is the HS code for Refractory bricks the same in all countries?

The base HS code 690220 for Refractory bricks is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.