Float Zone Crystal Grower Crucible from Germany
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 — Germany → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
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