Containing by weight more than 70 percent magnesia, expressed as MgO, with carbon content ranging from trace amounts to less than 30 percent, and chemically bonded by resin or pitch
Articles of cement, of concrete or of artificial stone, whether or not reinforced: > Tiles, flagstones, bricks and similar articles: > Building blocks and bricks > Containing by weight more than 70 percent magnesia, expressed as MgO, with carbon content ranging from trace amounts to less than 30 percent, and chemically bonded by resin or pitch
Duty Rate (from China)
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
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)
Products classified under HTS 6810.11.00.10
Magnesia Carbon Building Bricks
High-performance building bricks composed of over 70% magnesia (MgO) with carbon content under 30%, chemically bonded using resin or pitch. These bricks are designed for extreme heat resistance in industrial construction like furnace linings. They fall under HTS 6810.11.00.10 due to their specific magnesia-carbon composition and bonding method.
Resin-Bonded Magnesia Ladle Bricks
Specialized bricks for steel ladle linings, featuring >70% magnesia, trace to <30% carbon, and resin chemical bonding for superior erosion resistance. Used in molten metal handling in steel mills. Classified under HTS 6810.11.00.10 for their precise magnesia-carbon-resin composition.
High-Magnesia Carbon Kiln Blocks
Heavy-duty blocks exceeding 70% magnesia with controlled carbon under 30%, resin-bonded for cement kiln transition zones. They withstand abrasion and alkali attack. Fits HTS 6810.11.00.10 for building block form and composition.
Resin Magnesia Tundish Bricks
Tundish working layer bricks with high magnesia (>70%), low carbon (<30%), resin bonded for continuous steel casting. Erosion and corrosion resistant. Matches HTS 6810.11.00.10 building bricks criteria.
Pitch-Bonded Magnesia Furnace Bricks
Pitch-bonded bricks with over 70% magnesia and low carbon content, engineered for rotary kilns and furnaces in cement and lime production. Their chemical bonding provides thermal shock resistance. HTS 6810.11.00.10 applies due to the high magnesia, carbon range, and pitch bonding.
Magnesia-Resin EAF Roof Bricks
Roof bricks for electric arc furnaces (EAF), over 70% magnesia, <30% carbon, resin-bonded for high-temperature steelmaking roofs. Excellent slag resistance. Classified in HTS 6810.11.00.10 matching the chemical and composition criteria.
Carbon-Magnesia Converter Bricks
Bricks for BOF converters with >70% magnesia, trace-29% carbon, pitch-bonded for steel converter mouths and trunnions. Provides oxidation resistance. HTS 6810.11.00.10 due to exact material specs.