High-Purity Chromium Carbide Crystals from Mexico
Synthetic single-crystal chromium carbide (Cr3C2) grown for research and calibration standards in materials science. Chemically defined per Chapter 28 notes, classified under HTS 2849.90.20.00. Supplied as small crystals under 2.5g each.
Duty Rate — Mexico → United States
14.2%
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
• Include crystallographic analysis confirming chemical definition
• Declare as cultured crystals under 2.5g to avoid 3824 classification
• May require academic/research end-user certificates