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
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 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