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.
Import Duty Rates by Country of Origin
Alternative Classifications
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Import Tips & Compliance
• Specify Fisher sub-sieve size for filament-grade; mismatches lead to reclassification
• Energy Star compliance if for consumer lamps—declare end-use
Related Products 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.
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%.