Nuclear Reactor Internals Upper Guide Structure from Germany
A lattice framework installed above the reactor core to align and guide control rods and fuel assemblies during refueling operations. Falls under HTS 8401.40.00.00 as reactor internals designed for precise positioning under irradiation conditions.
Duty Rate — Germany → United States
13.3%
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
• Submit computational fluid dynamics (CFD) analysis proving hydraulic performance
• Certify materials to ASTM A240/A182 for nuclear service with delta ferrite control
• Avoid bulk stainless steel structure classification by documenting irradiation testing