Tungsten Boron Nitride Composite Powder from Mexico
Intimate mixture of tungsten powder and boron nitride for high-temperature lubricant and mold release applications in hot pressing. Inorganic composite with solid lubricant properties. Under 3824.99.3500 as tungsten inorganic mixture.
Duty Rate — Mexico → United States
16.5%
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
• XRD analysis confirms composite structure vs. simple mechanical blend
• Class 9 miscellaneous dangerous goods for air shipment of fine powders
• Specify apparent density and flow rate for foundry additive verification