Magnesia-Chrome Refractory Concrete from China
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 — China → United States
40.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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