Of tungsten
Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included: > Other: > Other: > Other: > Mixtures of two or more inorganic compounds: > Of tungsten
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 3824.99.35.00
Tungsten Silicate Binder for Foundry Molds
A mixture of sodium silicate and tungsten compounds used as a binder in foundry mold production. It provides high-temperature resistance and strength for sand cores in metal casting. Classified under 3824.99.3500 as a mixture of two or more inorganic compounds containing tungsten, specifically for foundry applications.
Tungsten Phosphoric Acid Mixture for Catalysts
A chemical preparation combining phosphotungstic acid with other inorganic phosphates for industrial catalyst applications. Used in petroleum refining and chemical synthesis processes. Falls under 3824.99.3500 due to its inorganic tungsten compound mixture not specified elsewhere.
Tungsten Zirconium Oxide Dispersion
An aqueous dispersion of tungsten oxide and zirconium oxide nanoparticles for ceramic coatings and high-temperature applications. Provides thermal barrier properties in foundry and aerospace components. Classified in 3824.99.3500 as a mixture of inorganic tungsten compounds.
Sodium Tungstate Borate Flux Mixture
A fused mixture of sodium tungstate and borates used as soldering flux in electronics and metal joining. Enhances wetting and corrosion resistance in high-temperature applications. Under 3824.99.3500 for inorganic tungsten compound mixtures.
Tungsten Molybdate Catalyst Precursor
Ammonium metatungstate and molybdate blend serving as precursor for hydrodesulfurization catalysts in oil refining. Inorganic salts mixture activated at high temperatures. Fits 3824.99.3500 as unspecified tungsten inorganic mixtures.
Tungsten Carbide Slurry for Coatings
Aqueous slurry of tungsten carbide powder mixed with inorganic suspending agents for thermal spray coatings. Applied to wear-resistant surfaces in mining equipment. 3824.99.3500 covers this inorganic tungsten compound preparation.
Tungsten Oxide Vanadate Mixture
Mixed metal oxide powder of tungsten trioxide and vanadium pentoxide for selective catalytic reduction (SCR) systems in emissions control. Inorganic catalyst base material. Classified under 3824.99.3500 for tungsten-containing inorganic mixtures.
Tungsten Silicophosphate Binder
Chemical binder combining tungsten phosphates with alkali silicates for precision investment casting molds. Offers superior green strength and thermal shock resistance. 3824.99.3500 for multi-inorganic tungsten preparations.
Tungsten Boron Nitride Composite Powder
Intimate mixture of tungsten powder and boron nitride for high-temperature lubricant and mold release applications in hot pressing. Inorganic composite with solid lubricant properties. Under 3824.99.3500 as tungsten inorganic mixture.