HS Code for Magnesia bricks

Magnesia bricks are classified under HS code 6902.10. This classification applies to refractory bricks, blocks, tiles, and similar refractory ceramic constructional goods. To fall under this specific subheading, the product must contain more than 50% by weight of the elements Magnesium (Mg), Calcium (Ca), or Chromium (Cr), calculated as MgO, CaO, or Cr2O3. These bricks are essential in high-temperature industrial applications, such as lining furnaces, kilns, and reactors. The classification is based on the material's ability to resist temperatures exceeding 1,500°C and its specific chemical composition. Chapter 69 covers ceramic products, and heading 6902 is reserved for refractory goods, distinguishing them from standard ceramic building materials found in heading 6904 or 6905.

Products Included

• Magnesite-chrome refractory bricks
• Dead-burned magnesite bricks
• Magnesia-carbon bricks for steel furnaces
• Fused magnesia refractory blocks
• Basic refractory tiles for cement kilns

Common Misclassification

Magnesia bricks are often confused with HS code 6810.11, which covers building bricks made of cement or concrete. However, 6810 items are not refractory. Another common error is misclassifying them under 6901.00, which is reserved for bricks made of siliceous fossil meals (like kieselguhr). The critical differentiator for 6902.10 is the magnesium content exceeding the 50% threshold and the refractory nature of the ceramic.

FAQ

What is the HS code for Magnesia bricks?

The HS code for magnesia bricks is 6902.10, specifically for refractory ceramic goods containing more than 50% magnesium, calcium, or chromium oxides.

Do these bricks include those used for residential fireplaces?

While some residential firebricks are refractory, they only fall under 6902.10 if they meet the specific 50% magnesium/calcium/chromium weight requirement; otherwise, they may fall under 6902.20 or 6902.90.