Silimanite Refractory Bricks from Germany
Silimanite refractory bricks use high-alumina sillimanite minerals for creep-resistant performance in glass tank regenerator checkers. Their fired structure handles 1600°C+ with minimal deformation. HTS 6902.90.10 for these aluminosilicate bricks.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Phase analysis via XRD confirms sillimanite/mullite content
• Specify load-bearing capacity under high temperature for engineering approval
• Palletize with thermal blankets for transoceanic temperature control