Graphite Immersion Heater Tube from Canada
Protective graphite sheath tube for immersion heaters in molten metal baths. High free carbon content provides corrosion resistance in aggressive environments. Fired ceramic refractory tube per HTS 6903.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Emphasize protective refractory function vs electrical component classification
• Include temperature rating specs (≥1000°C) to prove refractory purpose
• Heater assemblies may shift to Chapter 85 if electrical elements included