About HS Code 690310
This HS code covers advanced refractory ceramic goods, excluding bricks, blocks, and tiles, that contain more than 50% by weight of free carbon. These materials are engineered for extreme performance in high-temperature, reducing, or corrosive environments, particularly in the metallurgical industry. The high carbon content imparts exceptional properties such as high thermal conductivity, excellent thermal shock resistance, and non-wetting behavior against molten metals and slags. They are crucial for components like blast furnace linings, ladles, tundishes, and other parts exposed to molten iron and steel. Importers are primarily metallurgical industries seeking to enhance efficiency and longevity of their equipment. Exporters are countries with advanced carbon material processing and refractory manufacturing capabilities. Their trade highlights the global demand for high-performance materials in heavy industry.
Products Under This Code
Magnesia-carbon bricks (over 50% free carbon), Alumina-carbon bricks, Graphite electrodes (ceramic bonded), Carbon blocks for furnaces, Isostatically pressed carbon refractories, Silicon carbide-carbon refractories, Carbon-bonded crucibles
Real World Examples
RHI Magnesita magnesia-carbon bricks, Vesuvius carbon-bonded refractories, SGL Carbon graphite components, Tokai Carbon electrodes
Common Misclassification
Can be confused with 681599 if the carbon article is not ceramic-bonded or is primarily graphite, or with 690210/690220 if the carbon content is overlooked and other oxides are dominant.
Products Classified Under 6903.10
Trade Overview
China, Japan, and Germany are major exporters of these high-performance carbon-containing refractories, serving global metallurgical industries.
Frequently Asked Questions
What is HS code 690310?
HS code 690310 covers: Refractory ceramic goods; containing, by weight, more than 50% of free carbon, excluding those of siliceous fossil meals or similar earths. This HS code covers advanced refractory ceramic goods, excluding bricks, blocks, and tiles, that contain more than 50% by weight of free carbon. These materials are engineered for extreme performance in high-temperature, reducing, or corrosive environments, particularly in the metallurgical industry. The high carbon content imparts exceptional properties such as high thermal conductivity, excellent thermal shock resistance, and non-wetting behavior against molten metals and slags. They are crucial for components like blast furnace linings, ladles, tundishes, and other parts exposed to molten iron and steel. Importers are primarily metallurgical industries seeking to enhance efficiency and longevity of their equipment. Exporters are countries with advanced carbon material processing and refractory manufacturing capabilities. Their trade highlights the global demand for high-performance materials in heavy industry.
What products fall under HS code 690310?
Magnesia-carbon bricks (over 50% free carbon), Alumina-carbon bricks, Graphite electrodes (ceramic bonded), Carbon blocks for furnaces, Isostatically pressed carbon refractories, Silicon carbide-carbon refractories, Carbon-bonded crucibles
What are common misclassifications for HS code 690310?
Can be confused with 681599 if the carbon article is not ceramic-bonded or is primarily graphite, or with 690210/690220 if the carbon content is overlooked and other oxides are dominant.
How is HS code 690310 structured?
HS code 690310 is a 6-digit subheading under the Harmonized System. The first 2 digits (69) identify the chapter, digits 3-4 (03) identify the heading, and digits 5-6 (10) specify the subheading. This code is standardized globally by the World Customs Organization.