Niobium Carbide Powder from Mexico
Niobium carbide (NbC) powder strengthening superalloys for jet engines. HTS 2849.90.50.00 for chemically defined form excluding alloys. Critical for high-temperature structural integrity.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• ITAR/EAR screening required for aerospace end-uses
• Declare tantalum impurities <1% to avoid dual classification
• Use vacuum packaging for moisture-sensitive shipments