Alumina-Silica Kiln Furniture Shelf
Refractory shelf made from 60% alumina-40% silica mixture for supporting ware in ceramic kilns. High-temperature fired ceramic designed for repeated thermal cycling, HTS 6903.20.00.00 classification.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If formed as refractory bricks or shapes
Kiln construction materials classified separately from furniture.
If total alumina <50% by weight
Threshold composition determines specific alumina subheading.
If not primarily refractory end-use
Decorative ceramic articles fall under tableware/other ceramics.
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Import Tips & Compliance
• Document exact Al2O3/SiO2 ratio via spectrographic analysis
• Specify 'kiln furniture' use to differentiate from building materials
• Pack individually to maintain individual article classification
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