Ceramic Silicon Nitride Bearing Balls from Canada
Non-corrosive silicon nitride ceramic balls for high-speed bearings in crystal grinders and wafer polishers during semiconductor boule processing. Classified under HTS 8482.91.0030 as 'other' bearing balls due to material and precision specs beyond standard steel. Ideal for environments requiring chemical resistance in semiconductor fabrication.
Duty Rate — Canada → United States
14.4%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide material composition certificates confirming >95% silicon nitride; ensure sphericity grade (e.g
• G3) documentation; check Section 301 tariffs if from China due to advanced materials