Magnesia-Chrome Refractory Concrete from Mexico
A ready-mix concrete using magnesia, chrome ore, and phosphate binders for erosion-resistant linings in non-ferrous metal smelters. Under HTS 3816.00.20 as other refractory concretes, it offers superior slag resistance at 1600-1800°C. Common in copper and nickel production.
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
• Include EPA compliance docs for chrome content; declare hexavalent chromium levels accurately
• Ship in moisture-proof containers to prevent premature setting; specify shelf life on labels