Magnesia-Chrome Refractory Brick from Mexico
Magnesia-chrome refractory bricks are fired ceramic blocks made from magnesia and chromite for superior resistance to basic slags in steelmaking furnaces. They maintain structural integrity at temperatures exceeding 1700°C. This product fits HTS 6902.90.50.20 as 'other' refractory ceramic constructional goods, distinct from siliceous types.
Duty Rate — Mexico → United States
10%
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
• Include laboratory analysis reports confirming magnesia content and post-firing properties to support refractory classification
• Ensure bricks are not pre-assembled into shapes that might classify as parts under 6903 or 6904
• Beware of environmental regulations on chrome content; prepare REACH-like documentation for U.S. entry