HS Code for Refractory Bricks
The HS Code for refractory bricks is 690100. The MFN duty rate for importing to the US is Free.
| HS Code (6-digit) | 690100 |
|---|---|
| US Duty Rate (MFN) | Free |
| EU Duty Rate (MFN) | 1.7% |
| Chapter | 69 |
| Heading | 6901 |
| Last Updated | 2026-05 |
Description
Bricks, blocks, tiles of siliceous fossil meals or similar siliceous earths
HS Code 6901.00 covers refractory bricks and blocks of siliceous earths with a US MFN duty rate of Free.
Frequently Asked Questions
Do refractory bricks classified under HTS 6901.00 require an import license for entry into the United States?
Refractory bricks under HTS 6901.00 generally do not require a specific import license from U.S. Customs and Border Protection. However, the importer must ensure the goods comply with EPA regulations if they contain any hazardous materials and provide a proper country of origin declaration. Always verify the exact chemical composition with your supplier to confirm no additional regulatory controls apply.
What are the critical packaging requirements for shipping refractory bricks (HTS 690100) to prevent cargo damage during international ocean freight?
Refractory bricks must be secured on wooden pallets with heavy-duty plastic strapping and protected by corner boards to prevent chipping and breakage. Individual bricks within the palletized load should be separated by protective layers, such as cardboard or foam sheets, to mitigate damage from friction and impact during vessel transit. The entire shipment must be fully enclosed and protected from moisture using waterproof wrapping, as exposure can compromise the siliceous earth material.
Common Classification Mistakes for Refractory Bricks (6901.00)
The most frequent error is classifying bricks with a high alumina content (Al2O3 > 50%) under subheading 6902.20, which is for basic refractory bricks for metallurgical use. Goods of heading 6901.00 are defined by being fire-clay or siliceous (high silica), not basic. Another mistake involves importing pre-fired refractory shapes (e.g., nozzles, tubes) that are not simple bricks; these often belong in 6903.10-6903.90. Additionally, unshaped refractory materials like cements and mortars (even if based on fire-clay) are classifiable in 3816.00, not 6901.00.
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