Refractory-Grade Calcined Bauxite from China
Refractory-grade calcined bauxite is thermally treated to achieve over 85% alumina content, used in high-temperature furnace linings and kiln furniture. It is categorized under HTS 2606.00.0060 for other calcined bauxite concentrates. The calcination process densifies the ore for superior heat resistance.
Duty Rate — China → United States
25%
Rate breakdown
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Include thermal expansion and refractoriness test data (e.g
• Orton cone) in import docs
• Distinguish from synthetic alumina by providing mineralogical analysis showing bauxite origin
• Avoid bulk packaging pitfalls; use ventilated containers to prevent moisture reabsorption