Bauxite Clay Refractory Ramming Mass from Mexico
Ramming mass blending bauxite clay for electric arc furnace bottoms, offering abrasion resistance. Classified HTS 3816.00.20.10 for clay-dominant refractory mixes including dolomite ramming variants.
Duty Rate — Mexico → United States
13%
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
• Certify bauxite clay grain size (e.g
• 0-5mm) and Al2O3 content >60% for classification
• Declare as 'ramming mass' not aggregate to prevent 2518 misclassification
• Test for silica content; high silica may shift to 3816.00.40 if not clay-primary