Magnesia Carbon Submerged Entry Nozzle Tips from China
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 — China → United States
37.5%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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