Industrial Kiln Ceramic Insulator Tubes from China
Industrial kiln ceramic insulator tubes are high-temperature alumina tubes used to insulate heating element wires in electric kilns and furnaces, operating up to 1700°C. They provide electrical isolation in oxidizing atmospheres. These tubes are classified under tariff item 8546.20.00 as ceramic electrical insulators.
Duty Rate — China → Canada
0%
Import Tips
• Document the maximum operating temperature and alumina content to support the classification as ceramic insulators
• If the tubes are imported with heating elements, they may be classified as parts of furnaces, so ensure the invoice clearly separates the components
• Verify that the tubes are not considered parts of machines excluded by Section Note 1