Chapter 3801 — Customs Tariff Headings

3801.20.00Colloidal or semi-colloidal graphite

3801.30.00Carbonaceous pastes for electrodes and similar pastes for furnace linings

3801.90.00Other

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Products classified under Tariff item 38.01

Artificial Graphite EDM Electrode Block

Semi-manufactured blocks of artificial graphite used in Electrical Discharge Machining (EDM) to create precision electrodes for mold making. These blocks are classified under tariff item 3801.10.00 as artificial graphite in block form.

Artificial Graphite Lubricant Block

A semi-manufactured block of artificial graphite designed for high-temperature lubrication in industrial machinery is classified here. It is a form of artificial graphite not in powder or finished product state.

Artificial Graphite Powder Binder Paste

A paste combining artificial graphite powder with organic binders, used for molded carbon products like carbon brushes and seal rings, is classified here as a preparation based on artificial graphite. It is a semi-manufactured form before molding.

Artificial Graphite Sealing Compound

A semi-manufactured paste compound of artificial graphite for industrial gasket sealing applications is classified here as a graphite-based paste preparation. It is used in high-pressure pipe fittings.

Colloidal Graphite Battery Paste

Colloidal artificial graphite paste used in lithium-ion battery electrode manufacturing is classified here as a colloidal graphite preparation. It is a semi-manufactured form before coating onto electrodes.

Colloidal Graphite Heat Sink Paste

A semi-colloidal graphite suspension in paste form, used as a thermal interface material between CPUs and heat sinks, is classified here as a colloidal graphite preparation. It is a semi-manufactured form, not a finished consumer product.

Extruded Graphite Profiles for Vacuum Pump Brushes

Extruded artificial graphite profiles, custom-shaped for machining into brushes for vacuum pumps and compressors. These semi-manufactured forms ensure low friction and arc resistance, making them suitable for high-speed applications. They fall under tariff item 3801.10.00 as artificial graphite in semi-manufactured form.

Extruded Graphite Rod for Continuous Casting

Cylindrical artificial graphite rods extruded for use in continuous casting dies of steel production. These rods provide wear resistance and thermal management in high-temperature applications. They are classified under tariff item 3801.10.00 as artificial graphite in rod form.

Fine-Grain Artificial Graphite Plate for Fuel Cells

Precision-ground fine-grain artificial graphite bipolar plates for proton exchange membrane (PEM) fuel cells. These plates offer gas impermeability and electrical conductivity for clean energy applications. They fall under tariff item 3801.10.00 as artificial graphite in plate form.

Graphite Boat for Semiconductor Processing

Artificial graphite boats or trays used to hold silicon wafers during high-temperature semiconductor diffusion furnaces. These semi-manufactured boats are classified under tariff item 3801.10.00 as artificial graphite in semi-manufactured form.

Graphite Brush Stock Blocks for Wind Turbine Generators

Large blocks of artificial graphite stock material, sawn for brush production in wind turbine generators. These semi-manufactured blocks contain additives for durability in high-speed applications. They are classified under tariff item 3801.10.00 as artificial graphite in block form.

Graphite Carbon Paste for Fuel Cells

A paste formulation of artificial graphite and carbon for manufacturing fuel cell bipolar plates is classified here as a carbon-based paste semi-manufacture. It is critical for clean energy technology production.

Graphite Commutator Brushes for DC Motors

Pre-formed graphite plates and rods designed for machining into commutator brushes for DC electric motors. These semi-manufactured forms are made from artificial graphite with high electrical conductivity. They fall under tariff item 3801.10.00 as artificial graphite in semi-manufactured form.

Graphite Conductive Paste

A semi-manufactured paste made from artificial graphite mixed with binders, used in electronics for creating conductive paths on circuit boards, is classified here as a preparation based on artificial graphite.

Graphite Crucible for Metal Casting

A high-purity artificial graphite crucible designed for melting and casting non-ferrous metals like gold and silver in jewelry manufacturing. It falls under tariff item 3801.10.00 as artificial graphite in crucible form.

Graphite Die for Diamond Wire Sawing

Semi-manufactured graphite dies used to draw diamond-impregnated wire for silicon ingot slicing. These dies are classified under tariff item 3801.10.00 as artificial graphite in die form.

Graphite EDM Electrode Blank

Semi-finished artificial graphite blocks prepared as blanks for electrical discharge machining electrodes are classified here as other artificial graphite forms. They are standard in precision toolmaking before final machining.

Graphite Paste Carrier Block

Artificial graphite blocks serving as carriers for paste formulations in carbon brush manufacturing. These semi-manufactured blocks are classified under tariff item 3801.10.00 as artificial graphite in block form.

Graphite Plates for Industrial Appliance Brushes

Large artificial graphite plates cut to size for slicing into brushes for industrial appliances like power tools. These semi-manufactured plates offer uniform density for consistent brush performance. They are classified under tariff item 3801.10.00 as artificial graphite in plate form.

Graphite Powder for Generator Brush Production

Fine artificial graphite powder processed for compression molding into brushes for electric generators. This form is calibrated for high purity and density required in brush applications. It falls under tariff item 3801.10.00 as artificial graphite in powder form.

High-Capacity Spherical Graphite with Doped Surface Layer

High-capacity spherical graphite with a doped surface layer, modified with nitrogen or boron compounds, is used in high-energy-density battery anodes. The surface modification enhances reversible capacity, and the product is classified as artificial graphite in a semi-manufactured form.

High-Density Graphite Rod Blanks for Starter Motor Brushes

High-density artificial graphite rod blanks pre-formed for automotive starter motor brushes. These are partially sintered and sized for final brush machining. They are classified under tariff item 3801.10.00 as artificial graphite in rod form.

Isostatic Pressed Graphite Plate

High-density artificial graphite plates produced by isostatic pressing, used in semiconductor manufacturing equipment and fuel cells. These plates are classified under tariff item 3801.10.00 as artificial graphite in plate form.

Large Diameter Graphite Electrode Blank

Large diameter artificial graphite electrode blanks, semi-finished and exceeding 400 mm in diameter, are used in electric arc furnace steelmaking. They are classified under this tariff item as artificial graphite in a semi-manufactured form, prior to final machining into electrodes.

Low-Surface-Area Modified Graphite Spheres for Fast-Charging Anodes

Spherical graphite with a proprietary silane surface treatment, achieving a low BET surface area for fast-charging lithium battery anodes, is classified here as surface-modified artificial graphite. The treatment reduces SEI formation and improves performance.

Molded Graphite Block for Vacuum Furnace

Molded blocks of artificial graphite, used to fabricate components for vacuum heat treatment furnaces, are classified here as semi-manufactured artificial graphite. Their oxidation resistance in vacuum environments is a key property for this application.

Pitch-Coated Spherical Graphite for Anode Materials

Pitch-coated spherical graphite particles, used in EV battery anodes to improve coating uniformity and capacity retention, are classified as surface-modified artificial graphite. The petroleum pitch coating is a surface modification of the artificial graphite core.

Semi-Machined Graphite Rods for AC Motor Brushes

Partially machined artificial graphite rods shaped for further processing into brushes for AC induction motors. These rods feature pre-drilled cores and precision dimensions for brush fabrication. They fall under tariff item 3801.10.00 as artificial graphite in semi-manufactured form.

Surface-Modified Spherical Graphite Powder for Lithium-Ion Batteries

High-purity artificial graphite processed into spherical particles with surface modification for lithium-ion battery anodes is classified here. The surface modification enhances electrolyte compatibility and SEI layer formation, making it a semi-manufactured artificial graphite product.

Synthetic Graphite Machining Block

A large block of synthetic artificial graphite, machined to precise dimensions for use in electrical discharge machining (EDM) electrodes or custom industrial components. It is a semi-manufactured article of artificial graphite, not in powder or flake form, and is classifiable under tariff item 3801.10.00 as artificial graphite.

Synthetic Graphite Thermal Paste

A high-purity synthetic graphite thermal paste, formulated as a dispersion for use as a thermal interface material between CPUs and heatsinks. It is a preparation based on graphite, put up as a paste, and falls under tariff item 3801.10.00 as artificial graphite in a semi-manufactured form.

Synthetic Spherical Graphite with Carbon Nanotube Surface Modification

Artificial graphite spheres partially covered with vapor-deposited carbon nanotubes, used for improved electrical conductivity in battery anodes, are classified as surface-modified artificial graphite. The carbon nanotube coating is a surface modification of the artificial graphite spheres.

Acheson DAG 222 Colloidal Graphite

Acheson DAG 222 is an isopropanol-based colloidal graphite preparation used as a lubricant in glass-to-metal sealing processes. It consists of finely divided graphite particles suspended in a liquid carrier, which qualifies it as a colloidal or semi-colloidal graphite under tariff item 3801.20.00. This product is not a separate chemically defined compound, so it falls within the scope of Chapter 38.

AquaDAG Colloidal Graphite Lubricant

AquaDAG is a water-based colloidal graphite suspension used as a dry film lubricant for high-temperature applications such as mold release. The graphite particles are finely dispersed in water, making it a colloidal graphite preparation under tariff item 3801.20.00. It is not a separate chemically defined compound and is not put up as a pesticide or other excluded product.

Dag 580 Colloidal Graphite Dispersion

Dag 580 is a semi-colloidal graphite dispersion in butyl acetate solvent, used as an anti-stick coating for plastic molds and metal dies. The graphite is in a finely divided state, which qualifies it as a colloidal or semi-colloidal graphite under tariff item 3801.20.00. It is not a separate chemically defined compound and is not excluded by Chapter 38 notes.

Electrodag 423 Colloidal Graphite Conductive Paint

Electrodag 423 is a colloidal graphite in methyl ethyl ketone, used for EMI shielding coatings on electronics housings. The graphite is in a semi-colloidal form, which qualifies it under tariff item 3801.20.00 as a colloidal or semi-colloidal graphite preparation. It is not a separate chemically defined compound and is not excluded by Chapter 38 notes.

Graphite 33 Colloidal Graphite in Isopropanol

Graphite 33 is an alcohol-based colloidal graphite dispersion in isopropanol, used for conductive coatings on plastics and ceramics before metallization. The graphite particles are finely dispersed, making it a colloidal or semi-colloidal graphite under tariff item 3801.20.00. It is not a separate chemically defined compound and is not excluded by Chapter 38 notes.

Graphite Lubricant CCL-1600

Graphite Lubricant CCL-1600 is a colloidal graphite lubricant in a synthetic carrier, used for aerospace spline and bearing applications. The graphite is in a semi-colloidal form, which qualifies it under tariff item 3801.20.00 as a colloidal or semi-colloidal graphite preparation. It is not a separate chemically defined compound and is not excluded by Chapter 38 notes.

Molydag Colloidal Graphite Mold Release

Molydag combines colloidal graphite with molybdenum disulfide in an aerosol form for heavy-duty mold release in die casting. The dominant component is colloidal graphite, which qualifies it under tariff item 3801.20.00 as a colloidal or semi-colloidal graphite preparation. It is not a separate chemically defined compound and is not excluded by Chapter 38 notes.

NeoGraf Colloidal Graphite Solution

NeoGraf's waterborne colloidal graphite solution is used for battery electrode coatings and fuel cell bipolar plates. The graphite is in a semi-colloidal dispersion, which qualifies it under tariff item 3801.20.00 as a colloidal or semi-colloidal graphite preparation. It is not a separate chemically defined compound and is not excluded by Chapter 38 notes.

Pyroid Colloidal Graphite Dispersion

Pyroid is a synthetic colloidal graphite dispersion used for pyrolytic carbon coatings in semiconductor wafer processing. The high-purity graphite is in a semi-colloidal form, which qualifies it under tariff item 3801.20.00 as a colloidal or semi-colloidal graphite preparation. It is not a separate chemically defined compound and is not excluded by Chapter 38 notes.

Superior Graphite Colloidal Carbon Paste

Superior Graphite's colloidal carbon paste contains semi-colloidal graphite for carbon brush manufacturing and electrical contacts. The product is in a paste form, which qualifies it under tariff item 3801.20.00 as a colloidal or semi-colloidal graphite preparation. It is not a separate chemically defined compound and is not excluded by Chapter 38 notes.

Aluminum Smelter Soderberg Paste

Aluminum Smelter Soderberg Paste is a carbonaceous paste formulated for self-baking electrodes in aluminum reduction cells. It contains low-ash anthracite, synthetic graphite, and coal tar pitch, and is essential for the Hall-Héroult process. This product is classified under tariff item 3801.30.00 as a carbonaceous paste for electrodes.

Anthracite-Based Furnace Lining Paste

Anthracite-Based Furnace Lining Paste is a semi-colloidal paste made from calcined anthracite, coal tar pitch, and binders, used as a ramming mix for lining electric arc furnaces and ladles. It qualifies under tariff item 3801.30.00 as a similar paste for furnace linings, given its carbonaceous composition and application.

Calcined Petroleum Coke Electrode Paste

Calcined Petroleum Coke Electrode Paste is composed of calcined petroleum coke fines, metallurgical coke, and coal tar pitch, used in ferrosilicon and ferrochrome production furnaces. It falls under tariff item 3801.30.00 for its role in forming Soderberg electrodes, as it is a carbonaceous paste for electrodes.

Carbon Ramming Paste for Copper Smelting

Carbon Ramming Paste for Copper Smelting is a carbonaceous paste with copper-tolerant additives for anode furnace linings in copper pyrometallurgy. It contains graphite and petroleum coke, and is classified under tariff item 3801.30.00 as a similar paste for furnace linings.

Ferrophosphorus Furnace Paste

Ferrophosphorus Furnace Paste is a specialized carbonaceous paste with phosphorus additives for ferrophosphorus smelting electrodes, containing graphite, anthracite, and pitch binders. It is classified under tariff item 3801.30.00 for furnace electrode applications, as it is a carbonaceous paste for electrodes.

Graphite Electrode Paste for EAF

Graphite Electrode Paste for EAF is a graphite-based paste combining synthetic graphite powder, pitch binder, and anthracite, formulated for electric arc furnace electrodes in steel production. It is classified under tariff item 3801.30.00 due to its specific use as a carbonaceous paste for electrodes.

Graphite Ramming Mix for Induction Furnaces

Graphite Ramming Mix for Induction Furnaces is a dry ramming paste of flake graphite, clay, and borax additives, mixed on-site for induction furnace bottom and side linings. It falls under tariff item 3801.30.00 as a similar paste for furnace linings, despite its dry powder presentation, because it is intended to be mixed into a paste.

High Purity Graphite Paste for Specialty Electrodes

High Purity Graphite Paste for Specialty Electrodes is an ultra-low impurity graphite paste using synthetic graphite and petroleum needle coke for specialty electrodes in non-ferrous metallurgy. It precisely matches tariff item 3801.30.00 as a premium carbonaceous paste for electrodes.

Ladle Ramming Paste for Steel Mills

Ladle Ramming Paste for Steel Mills is a high-carbon ramming paste using graphite and metallurgical coke powder with phenolic resin binders, applied for hot repair of steel ladle linings. It meets tariff item 3801.30.00 criteria as a paste for furnace linings in steelmaking.

Metallurgical Coke Paste for Ferroalloys

Metallurgical Coke Paste for Ferroalloys is a paste blend of metallurgical coke breeze, anthracite, and asphalt pitch for submerged arc furnace electrodes in ferroalloy production. Tariff item 3801.30.00 classification reflects its characteristics as a carbonaceous paste for furnace electrodes.

Silicon Carbide Enhanced Electrode Paste

Silicon Carbide Enhanced Electrode Paste incorporates silicon carbide aggregates, graphite flour, and pitch for improved conductivity in calcium carbide furnaces. It is classified under tariff item 3801.30.00 despite additives, as the primary carbonaceous material and electrode use define its character.

Soderberg Electrode Paste

Soderberg Electrode Paste is a carbonaceous mixture of calcined anthracite, coal tar pitch, and graphite used in the production of self-baking electrodes for aluminum smelting and ferroalloy furnaces. It falls under tariff item 3801.30.00 as a carbonaceous paste for electrodes.

Artificial Graphite Conductive Paste

A conductive paste formulated from artificial graphite, used in electronics manufacturing for thermal interface materials and conductive coatings. This paste is a semi-manufactured preparation based on artificial graphite, falling under tariff item 3801.90.00 as 'Other' graphite preparations.

Carbon Block Seals Preform

Graphite-carbon blocks shaped for mechanical seal manufacturing, representing semi-manufactured articles of artificial graphite. These blocks are not finished seals but are prepared for further processing, fitting under tariff item 3801.90.00 as 'Other' graphite preparations.

Carbon Paste for Metallurgy

Carbon paste for metallurgical processes, used as a preparation based on graphite or carbon in paste form. This semi-manufactured product is intended for metallurgical applications, aligning with tariff item 3801.90.00 for other graphite-based preparations.

Carbon Paste for Mold Release

A paste preparation based on graphite or carbon used as a mold release agent in foundries and plastics molding. This product prevents sticking during high-temperature processes and is classified under tariff item 3801.90.00 as other carbon-based pastes in semi-manufacture.

Carbon Paste for Silicon Carbide Production

Carbon Paste for Silicon Carbide Production is a paste formulation of artificial graphite powder and phenolic resin, used in the Acheson furnace process for synthetic silicon carbide manufacture. It is classified under tariff item 3801.90.00 as a graphite-based paste semi-manufacture, essential for high-temperature processes.