Phosphate-Bonded Alumina Brick from China
Refractory bricks using phosphate binders with >50% alumina for improved strength in backup linings. Meets Chapter 69 firing requirements using inorganic nonmetallic materials. Alumina brick classification 6902.20.10.10.
Duty Rate — China → United States
35%
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
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
• Disclose binder type in technical data sheets; phosphates allowed per chapter raw materials
• Average water absorption if mixed cast/jiggered per US note for set patterns (though not applicable here)
• Avoid bulk bags; use crates to prevent powder contamination from binders