Phosphate-Bonded Alumina Brick from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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