Magnesia Carbon Submerged Entry Nozzle Tips from Mexico
Replaceable tips for submerged entry nozzles in continuous casting, made with 75% MgO, 20% carbon, pitch-bonded for steel-slag resistance. Critical for billet quality. HTS 6815.99.41.10 covers these specific chemically bonded mineral compositions.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Use ISO-certified analysis for MgO/carbon verification; customs audits common for refractories
• Declare as 'refractory articles' not machinery parts to avoid higher duties
• Monitor origin marking—India/China sources often face special duties