High alumina bricks and shapes
High alumina refractory bricks and shapes for construction
HSN 6902 20 20 (High alumina bricks and shapes) is not covered by a Bureau of Indian Standards Quality Control Order and carries no Partner Government Agency clearance requirement at the tariff-line level. Import follows the standard customs procedure: Importer-Exporter Code, bill of entry, commercial invoice, packing list. Other refractory ceramic goods within Chapter 69 — particularly those classified by silica content, magnesia content, or specific end-use application — may sit on sibling tariff lines that carry distinct compliance obligations.
The classification of refractory ceramics turns on precise chemical composition — alumina content above 50% by weight is the threshold criterion for this tariff line, and a marginal difference in Al2O3 percentage can shift a consignment to a differently classified line. Re-classification on customs examination triggers retrospective compliance and potential detention pending resolution. Import documentation should include a mill test certificate or third-party composition analysis to defend the declared tariff line.