Zirconium Sponge
Porous zirconium metal in sponge form, produced by reducing zirconium tetrachloride with magnesium, used as an intermediate for manufacturing zirconium-based products. Classified under HTS 8109.99.00.00 as 'other' articles of zirconium, excluding bars, rods, profiles, wire, plates, sheets, strip, foil, tubes, pipes, and tube/pipe fittings. It falls here as a raw metallic form not specified elsewhere in the heading.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If in the form of waste or scrap
Waste and scrap of zirconium are specifically classified under 8109.90, separate from other articles.
If imported as zircon sand ore concentrate
Unwrought zirconium ores like zircon fall under Chapter 26 for mineral products, not refined metal articles.
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Import Tips & Compliance
• Verify purity and form via chemical analysis certificates to confirm classification as zirconium sponge under 'other' articles
• Include mill test reports documenting non-alloy status (zirconium >99% by weight) to avoid misclassification as Chapter 81 alloys
• Check for waste/scrap exclusion; ensure documentation proves it's prime material to prevent duty disputes
Related Products under HTS 8109.99.00.00
Zirconium Powder
Fine zirconium metal powder used in pyrotechnics, powder metallurgy, and as a reducing agent in chemical processes. It is classified under HTS 8109.99.00.00 as an 'other' article of zirconium not fitting specific forms like bars, rods, or tubes. The powdered state distinguishes it from wrought or semi-finished products.
Zirconium Crucibles
High-purity zirconium crucibles used for melting and containing reactive metals in laboratory and foundry settings due to corrosion resistance. Falls under HTS 8109.99.00.00 as fabricated 'other' articles of zirconium, not matching tube/pipe or semi-finished forms. Ideal for high-temperature applications in nuclear and aerospace.
Zirconium Getter Alloy Discs
Small discs of zirconium-based getter material used in vacuum tubes and lamps to absorb residual gases. Classified under HTS 8109.99.00.00 as 'other' zirconium articles, provided zirconium exceeds 99% (per Chapter 81 note exclusion for alloys). Not semi-finished bars/rods.
Zirconium Evaporation Boats
Fabricated zirconium boats for thermal evaporation in thin-film deposition processes in semiconductor manufacturing. Under HTS 8109.99.00.00 as 'other' articles, distinct from plates/sheets or tubes due to specialized shape and function.
Zirconium Machined Valves
Precision-machined zirconium valves for corrosive chemical processing plants. HTS 8109.99.00.00 covers these as 'other' fabricated articles, not tube fittings (which have specific exclusions).
Zirconium Welding Rods
Pure zirconium rods for TIG welding in nuclear reactor construction. 'Other' under 8109.99.00.00 as fabricated consumables, differentiated from unwrought bars by processing.