Silicon carbide crucibles
Silicon carbide crucibles for refractory ceramic applications
HSN 6903 20 10 (Silicon carbide crucibles) 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 (IEC), bill of entry, commercial invoice, packing list. Other refractory ceramic goods within Chapter 69 — including certain industrial ceramic tubes, pipes, and high-alumina structural refractories — may be subject to distinct compliance depending on composition and end-use.
The principal importer risk at this tariff line is misclassification: silicon carbide crucibles are classified here on the basis of their alumina-silica compound content exceeding 50% by weight, and a product that does not meet that compositional threshold may be re-classified to a neighbouring line within Chapter 69 on customs examination. Such re-classification can trigger retrospective compliance and detention pending resolution. Verify the certified chemical composition of each consignment against the tariff criterion before filing the bill of entry.