Zircaloy-4 Fuel Cladding Spacer Grid from Japan
Non-irradiated Zircaloy-4 spacer grid assembly that positions and supports fuel rods within nuclear fuel cartridges, maintaining coolant flow spacing. Classifies under HTS 8401.30.00.00 as parts of non-irradiated fuel elements. Features Inconel springs for rod retention and precise cell tolerances.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Verify grid strap thickness (±0.001") and dimple height specs; provide fretting wear test data
• Include fuel assembly design locus documentation
• Common error: classifying as general reactor internals