Yttria-Stabilized Zirconia Powder (30% Y2O3)
A fine powder composed of zirconium oxide stabilized with approximately 30% yttrium oxide equivalent, used in manufacturing high-strength ceramics for dental implants and engine components. It falls under HTS 2846.90.40.00 because it is a yttrium-bearing material containing between 19% and 85% yttrium oxide equivalent by weight, classified as a compound of rare-earth metals including yttrium. This intermediate concentration distinguishes it from higher-purity rare earth compounds.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If yttrium oxide equivalent exceeds 85% by weight
Higher concentration yttrium compounds shift to the 'over 85% yttrium oxide equivalent' subheading within the same rare-earth compounds heading.
If processed into finished ceramic tiles or articles
Once formed into completed ceramic products like tiles, classification moves from raw chemical compounds to Chapter 69 ceramic wares.
If sold as a prepared additive or mixture for foundry use
Chemical preparations not purely chemically defined, like doped additives, fall under heading 3824 for industrial chemical mixtures.
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Import Tips & Compliance
• Verify yttrium oxide equivalent content via certified lab analysis to confirm 19-85% range; provide material safety data sheets (MSDS) for hazardous classifications
• Ensure declaration matches exact composition to avoid reclassification to 2846.90.20 or 2846.90.80
• Common pitfall: mislabeling as pure zirconia, triggering Section XV duties
Related Products under HTS 2846.90.40.00
Yttrium-Doped Yttrium Aluminum Garnet (YAG) Precursor Powder
Powder precursor for YAG crystals with 25% yttrium oxide equivalent, used in laser optics and phosphors. Classified under HTS 2846.90.40.00 as a yttrium-bearing compound in the specified concentration range for rare-earth metals of yttrium. It serves as an intermediate material before sintering into final optical elements.
High-Purity Yttrium Oxide-Zirconia Composite Granules (40% Y2O3)
Granular composite of zirconia and 40% yttrium oxide equivalent for thermal barrier coatings in aerospace turbines. This yttrium-bearing material qualifies for HTS 2846.90.40.00 due to its intermediate yttria content in rare-earth compounds, prior to plasma spraying application.
Yttrium Europium Oxide Phosphor Precursor (22% Y2O3 Equiv)
Precursor powder blending yttrium and europium oxides at 22% yttrium oxide equivalent for LED phosphors. Falls under HTS 2846.90.40.00 as a mixture of rare-earth compounds (yttrium and europium) in the 19-85% yttria range, before final phosphor activation.
Yttrium-Stabilized Hafnia Powder for Refractories (28% Y2O3)
Powder of hafnium oxide stabilized with 28% yttrium oxide equivalent, applied in high-temperature refractories. Classified in HTS 2846.90.40.00 for its yttrium-bearing composition within the specified rare-earth concentration limits.
Scandium-Yttrium Alloy Oxide Powder (35% Y2O3 Equiv)
Oxide powder from scandium-yttrium alloy with 35% yttrium oxide equivalent, used in lightweight aerospace alloys. HTS 2846.90.40.00 covers mixtures of rare-earth metals including scandium and yttrium at this concentration.
Yttrium Gadolinium Garnet (YGG) Precursor (45% Y2O3)
Precursor for microwave garnets with 45% yttrium oxide equivalent in yttrium-gadolinium mix. Fits HTS 2846.90.40.00 as a chemically defined rare-earth compound of yttrium in intermediate concentration.