Zirconia Nozzle for Continuous Casting from Canada
Refractory zirconia ceramic nozzle used in steel mills for controlling molten metal flow during continuous casting. Falls under HTS 6903.90.00 as 'other refractory ceramic goods' like nozzles, engineered for extreme thermal shock resistance. Fired ceramic body meets Chapter 69 firing requirements.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide steel mill end-use certification to avoid scrutiny as consumer goods; test for water absorption per ASTM C373 if absorption questioned
• Pitfall: nozzles >3.2cm thick may confuse with tiles under 6907 notes