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Tantalum Powder Sintered Block

Sintered block from tantalum powder for further machining, used in vacuum furnace parts. Classified HTS 8103.99.00.00 as processed article, not mere powder. Consolidation via sintering makes it a fabricated form.

Import Duty Rates by Country of Origin

Origin Country	MFN Rate	Ch.99 Surcharges	Total Effective Rate
🇨🇳China	4.4%	—	4.4%
🇲🇽Mexico	4.4%	—	4.4%
🇨🇦Canada	4.4%	—	4.4%
🇩🇪Germany	4.4%	—	4.4%
🇯🇵Japan	4.4%	—	4.4%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8103Same rate: 4.4%

If unsintered powder compact

Powders remain unwrought even if pressed.

8108.90.60Higher: 40% vs 4.4%

If tubes with gas/liquid fittings

Special provisions for certain titanium articles, analogous structure.

8439.99.50.00Higher: 37.5% vs 4.4%

If parts for vacuum furnaces

Machinery parts classified by function.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

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Import Tips & Compliance

• Document sintering process to prove beyond powder state

• Density measurements confirm consolidation

• Avoid declaring as 'green compact' which resembles powder

Related Products under HTS 8103.99.00.00

Tantalum Foil for Capacitors

Thin tantalum foil sheets rolled for use in electrolytic capacitors due to high capacitance. Falls under HTS 8103.99.00.00 as 'other' tantalum articles, not qualifying as bars, rods, or waste. Precision rolling makes it distinct from unwrought forms.

Tantalum Sheet 0.5mm Thick

Rolled tantalum sheet used in chemical processing equipment for corrosion resistance. Classified in HTS 8103.99.00.00 as other tantalum articles, distinct from wire or powder forms. Thickness under 1mm qualifies it beyond basic plate provisions.

Tantalum Disc for Electronics

Stamped tantalum discs serving as anodes in capacitors. HTS 8103.99.00.00 for other tantalum articles in basic shapes. Precision stamping from sheet qualifies as fabricated.

Tantalum Implant Wire

Fine tantalum wire for surgical implants and stents. HTS 8103.99.00.00 covers medical-grade drawn wire articles. Biocompatibility from high purity.

Tantalum Chemical Reaction Vessel

Fabricated tantalum vessel for handling hot acids in pharma production. Under HTS 8103.99.00.00 as other vessels/articles. Welded construction from sheet/plate.

Tantalum Evaporation Boat

Folded tantalum boat for vacuum evaporation of metals in thin-film production. HTS 8103.99.00.00 for specialized fabricated articles. High-temperature resistance key.