Float Zone Crystal Grower Crucible from Canada
High-purity graphite crucible used in float zone crystal growers to process semiconductor-grade silicon into monocrystalline boules. Classified under HTS 8454.90.0080 as a part of metallurgical casting machines for ingot production. Critical for maintaining zone purity during RF-heated melting.
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
• Document RF induction compatibility and semiconductor purity standards; label as 'semiconductor ingot mold part' clearly
• Watch for undervaluation penalties on high-spec graphite