Magnesia Chrome Refractory Bricks from Mexico
Magnesia chrome refractory bricks combine magnesium oxide and chromite for extreme resistance to basic slags in steelmaking furnaces. These fired ceramic bricks maintain structural integrity at temperatures up to 2000°C. HTS 6902.90.10 covers such 'other' refractory bricks excluding siliceous types.
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
• Provide mill test reports showing magnesia content and firing certification for customs clearance
• Check for hexavalent chromium restrictions under environmental regulations before import
• Avoid classifying as parts if imported with furnace assemblies to prevent Chapter 84 shifts