Powders
Tungsten (wolfram) and articles thereof, including waste and scrap: > Powders
Duty Rate (from China)
Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 8101.10.00.00
Atomized Tungsten Powder
Gas-atomized tungsten powder with controlled spherical morphology for powder metallurgy and thermal spraying. HTS 8101.10.00.00 covers all such tungsten powder forms.
Tungsten Powder for Lamp Filaments
High-purity, coarse tungsten powder for drawing into lamp filament wire. Specifically powders under HTS 8101.10.00.00 before wire-forming.
Reduced Tungsten Powder
Hydrogen-reduced tungsten powder from ammonium paratungstate, standard for PM parts. HTS 8101.10.00.00 for this intermediate powder form.
Tungsten Heavy Alloy Powder
Pre-alloyed W-Ni-Fe powder (92-97% W) for radiation shielding and balance weights. Borderline HTS 8101.10.00.00 if W >99% relative, but often alloys.
Tungsten Powder for Catalysts
Activated tungsten powder as hydrogenation catalyst precursor in chemical industry. Pure metal powder under HTS 8101.10.00.00.
Micron Tungsten Powder 5-10um
Fine 5-10 micron tungsten powder for injection molding of complex parts. HTS 8101.10.00.00 due to powder state.
Tungsten Powder for Electronics
Ultra-pure tungsten powder for semiconductor contacts and thick-film pastes. Classed HTS 8101.10.00.00 for purity >99.999%.
Tungsten Carbide Powder
Fine powder composed primarily of tungsten carbide (WC), used in manufacturing cutting tools and wear-resistant parts. Classified under HTS 8101.10.00.00 as tungsten powders due to its high tungsten content in powdered form. Not an alloy as tungsten exceeds 99% relative to other metals.
Pure Tungsten Powder 99.9%
High-purity tungsten powder (≥99.9% W) used in metallurgy, electronics, and 3D printing applications. Falls under HTS 8101.10.00.00 specifically for tungsten powders, excluding alloys or articles.
Tungsten Powder for 3D Printing
Spherical tungsten powder optimized for selective laser melting (SLM) in additive manufacturing of high-density parts. Classified as HTS 8101.10.00.00 for tungsten powders, valued for its flowability and purity.
Nano Tungsten Powder
Nanoparticle tungsten powder (<100nm) for catalysts, batteries, and advanced materials research. HTS 8101.10.00.00 applies to all tungsten powders regardless of particle size.
Tungsten Powder for Welding Electrodes
Lanthanum-doped tungsten powder for TIG welding electrode production, offering stable arc performance. Remains under HTS 8101.10.00.00 as base tungsten powder, not final article.