Chromite Investment Casting Shells from Mexico
Pre-made ceramic shells with chromite flour stucco for precision investment casting. Under HTS 6815.91.00 for chromite content in foundry articles. Used for aerospace and turbine blade production.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• State shell thickness and chromite percentage in shell composition
• Distinguish from green sand molds (6815.99)
• Supplier test reports for Cr2O3 content mandatory