Magnesia Carbon Ladle Nozzle Inserts from Japan
Refractory inserts for steel ladle nozzles made with >70% magnesia, 5-25% carbon, and resin-bonded for high thermal shock resistance. Used in continuous casting to control molten steel flow. Falls under HTS 6815.99.41.10 for its precise magnesia-carbon-resin composition not specified elsewhere.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide lab analysis reports confirming MgO and carbon percentages; customs often requires this for subheading 6815.99.41.10
• Label clearly as 'unfired resin-bonded' to distinguish from fired products; mislabeling leads to reclassification
• Check for anti-dumping duties on Chinese-origin magnesia carbon refractories