Duty Rate (from China)
Products classified under Tariff item 2849.90.00.90
Amorphous Boron Carbide Granules 10-50 Micron
Amorphous boron carbide granules in the 10-50 micron range, used as a metallurgical additive and ceramic raw material. This chemically defined boron carbide compound is classified under tariff item 2849.90.00 as a carbide, whether or not chemically defined, other than those specified elsewhere.
2849.90.00Boron Carbide Abrasive Micro-Powder F220
F220 grit boron carbide micro-powder standardized for precision lapping and polishing of semiconductors and optics. This chemically defined boron carbide powder is classified under tariff item 2849.90.00 as a carbide, whether or not chemically defined, in powder form.
2849.90.00Boron Carbide Powder B4C 99% Purity
High-purity boron carbide powder with 99% purity, used as an abrasive in polishing and grinding. This chemically defined inorganic compound of boron is classified under tariff item 2849.90.00 as a carbide, whether or not chemically defined.
2849.90.00Boron Carbide Sputtering Target Material
High-density boron carbide material prepared for thin-film deposition via sputtering in semiconductor manufacturing. This chemically defined boron carbide in raw target form is classified under tariff item 2849.90.00 as a carbide, whether or not chemically defined.
2849.90.00Chromium Carbide Additive for Cermets
Granular chromium carbide (Cr3C2) in the 10-50 micron range, specifically for mixing into cermet powder formulations for powder metallurgy. This chemically defined chromium carbide is classified under tariff item 2849.90.00 as a carbide, whether or not chemically defined.
2849.90.00Chromium Carbide Powder (Cr3C2)
High-purity chromium carbide (Cr3C2) powder used in thermal spray coatings for wear-resistant surfaces. This chemically defined inorganic compound of chromium is classified under tariff item 2849.90.00 as a carbide, whether or not chemically defined.
2849.90.00Chromium Carbide Sputtering Target
Dense chromium carbide (Cr3C2) disc used as a sputtering target for thin-film deposition. This chemically defined chromium carbide in unwrought form is classified under tariff item 2849.90.00 as a carbide, whether or not chemically defined.
2849.90.00Chromium Carbide Thermal Spray Wire
Continuous wire form of chromium carbide composite (60% Cr3C2 in nickel-chromium matrix) for HVOF thermal spraying. The primary chromium carbide component qualifies it under tariff item 2849.90.00 as a carbide, whether or not chemically defined.
2849.90.00Chromium Carbide Wear Plates
Pre-formed plates consisting primarily of chromium carbide overlay on steel backing for chute liners and conveyor wear parts. The functional chromium carbide layer determines classification under tariff item 2849.90.00 as a carbide, whether or not chemically defined.
2849.90.00Cr3C2 Chromium Carbide Rods
Hot-pressed polycrystalline chromium carbide (Cr3C2) rods used as stock material for machining into pump seals and valve components. This chemically defined carbide in cylindrical form is classified under tariff item 2849.90.00 as a carbide, whether or not chemically defined.
2849.90.00High-Purity Boron Carbide for Nuclear Applications
Ultra-high purity boron carbide specifically for neutron absorption in nuclear reactors. This chemically defined boron carbide compound is classified under tariff item 2849.90.00 as a carbide, whether or not chemically defined, distinguished by isotopic purity.
2849.90.00High-Purity Chromium Carbide Crystals
Synthetic single-crystal chromium carbide (Cr3C2) grown for research and calibration standards in materials science. This chemically defined compound is classified under tariff item 2849.90.00 as a carbide, whether or not chemically defined.
2849.90.00Nano-Chromium Carbide Particles
Ultrafine nanocrystalline chromium carbide (Cr3C2) particles averaging 50nm for advanced composite materials and catalysts. This pure, chemically defined compound is classified under tariff item 2849.90.00 as a carbide, whether or not chemically defined.
2849.90.00Reaction-Bonded Boron Carbide Precursor Powder
Specialty boron carbide powder designed for reaction-bonded ceramic processing in armor and wear-resistant applications. This pure chemical compound prior to sintering is classified under tariff item 2849.90.00 as a carbide, whether or not chemically defined.
2849.90.00Ultra-Fine Boron Carbide Nanopowder <500nm
Nanoscale boron carbide powder with average particle size less than 500nm for advanced composites and coatings. This chemically defined boron carbide nanomaterial is classified under tariff item 2849.90.00 as a carbide, whether or not chemically defined.