Graphite Immersion Heater Tube from Mexico
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 — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
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