6902.20.10/Silica-Alumina Refractory Brick/Japan

Silica-Alumina Refractory Brick from Japan

Refractory brick with >50% combined silica (SiO2) and alumina, engineered for blast furnace linings. Fired ceramic construction withstands thermal shock and corrosion from molten materials. Falls under 6902.20.10 for high-silica/alumina refractory bricks.

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%

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Import Tips

• Submit lab test results per ASTM C357 for oxide content to prove >50% Al2O3/SiO2

• Include end-use declaration as refractory to distinguish from common bricks

• Check for proper HS declaration; mixtures must total >50% specified oxides