HS Code for Diatomite bricks
View full HS code detailsDiatomite bricks are classified under HS code 6901.00. This heading is specific to bricks, blocks, tiles, and other ceramic goods made of siliceous fossil meals (such as kieselguhr, tripolite, or diatomite) or of similar siliceous earths. These products are primarily used for heat insulation due to their low density and low thermal conductivity. Unlike standard ceramic bricks in 6904, these are characterized by their specific raw material (diatomaceous earth) and their lightweight, porous structure. The classification under 6901.00 is determined by the manufacturing process (firing/ceramic process) and the specific mineral composition of the fossil meals used. These bricks are essential in the construction of industrial furnaces, kilns, and other high-temperature equipment where thermal efficiency is required. To fall under this code, the articles must have been shaped and then fired, distinguishing them from raw minerals or unfired mixtures.
Products Included
- Insulating diatomite bricks
- Kieselguhr blocks for furnaces
- Diatomaceous earth tiles
- Heat-insulating ceramic slabs made of fossil meals
- Lightweight siliceous fossil meal blocks
Common Misclassification
Diatomite bricks are frequently misclassified under HS code 6902, which covers refractory bricks. While diatomite bricks provide insulation, 6902 is reserved for bricks with a different chemical composition (like alumina or silica) intended for much higher temperatures. They may also be confused with 6806, which covers slag wool or expanded mineral materials for insulation, but the ceramic firing process of diatomite bricks mandates classification in Chapter 69.
FAQ
What is the HS code for Diatomite bricks?
The HS code for bricks and other ceramic goods made of diatomite or similar siliceous fossil meals is 6901.00.
Are these the same as refractory bricks?
No, while they are used in high-temperature environments, diatomite bricks are specifically for insulation and are classified under 6901.00, whereas standard refractory bricks fall under 6902.
Frequently Asked Questions
What is the HS code for Diatomite bricks?
The HS code for Diatomite bricks is 690100 (Bricks, blocks, tiles and other ceramic goods of siliceous fossil meals (e.g. kieselguhr, tripolite or diatomite) or of similar siliceous earths).
How do I classify Diatomite bricks for customs?
Diatomite bricks is classified under HS code 690100 — Bricks, blocks, tiles and other ceramic goods of siliceous fossil meals (e.g. kieselguhr, tripolite or diatomite) or of similar siliceous earths. This is a 6-digit subheading level code.
Is the HS code for Diatomite bricks the same in all countries?
The base HS code 690100 for Diatomite 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.