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%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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