Alumina Ceramic Boat for Technical Furnaces
A fired alumina ceramic boat used in technical furnaces for sample transport during high-heat processes in metallurgy labs. Classified under HTS 6909.90.00.00 for other ceramic wares of technical uses, as it meets firing requirements and excludes refractory building materials of 6901-6903.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for high-refractory grades enduring extreme industrial furnace conditions
Products designed for temperatures significantly above standard technical uses classify as refractory goods under 6903.
If fitted with insulating electrical components for specialized lab equipment
Ceramic insulators or electrical fittings are excluded from Chapter 69 per legal notes and fall under Chapter 85.
If thickness exceeds 3.2 cm and used as unglazed technical tiles
US note excludes thick articles from 'tiles' definition in 6907, but finished technical receptacles stay in 6909.
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Import Tips & Compliance
• Provide technical specifications confirming use temperature <1500°C to distinguish from refractory bricks in 6902/6903
• Label with exact composition (e.g
• 99% Al2O3) and firing proof to prevent misclassification as industrial parts under Chapter 84
• Avoid bulk packaging that suggests construction use, which could trigger 6904 roofing tile headings
Related Products under HTS 6909.90.00.00
Porcelain Crucible for Laboratory Use
A high-purity porcelain crucible fired after shaping, designed for high-temperature melting and analysis in chemical laboratories. It falls under HTS 6909.90.00.00 as ceramic ware for laboratory or chemical uses, meeting the chapter's firing requirement and technical application. The translucent body absorbs less than 0.5% water per US notes.
Ceramic Evaporating Dish for Chemical Labs
A glazed porcelain evaporating dish fired for laboratory chemical concentration processes. It qualifies under HTS 6909.90.00.00 as 'other' ceramic wares for chemical or technical uses, distinct from kitchen earthenware due to low water absorption and lab specification.
Silicon Carbide Ceramic Jar for Packing Chemicals
Fired silicon carbide jar used for secure packing and conveyance of corrosive chemical powders in industrial settings. Falls under HTS 6909.90.00.00 for ceramic jars of a kind used for packing goods, as per heading description and chapter firing notes.
Zirconia Ceramic Technical Pot for Catalyst Handling
High-performance zirconia ceramic pot fired for handling catalysts in chemical processing plants. Classified in HTS 6909.90.00.00 as other technical ceramic wares, excluding electrical insulators or Chapter 69 exclusions.
Porcelain Buchner Funnel for Lab Filtration
Fired porcelain Buchner funnel with perforated plate for vacuum filtration in analytical chemistry labs. HTS 6909.90.00.00 applies to this laboratory ceramic ware, confirmed by low water absorption and technical design.
Ceramic Desiccator Plate for Laboratory Drying
Glazed porcelain desiccator plate fired for supporting samples in moisture-free lab environments. Falls under HTS 6909.90.00.00 for other laboratory ceramic wares per chapter technical use criteria.