

High purity aluminum oxide is the raw material for sapphire crystal. This type of pressed pellets are made from ultra high purity alumina. It is designed to provide high filling in crucibles used to make sapphire single crystals. The alumina materials RBST supplied are produced with latest eco-friendly and high technology. As a supplier for advanced materials, we continuously improving the service by cooperate with the manufacturers with high efficiency large volume production.
Key Specifications: HS Code: 2818.20 | Brand: EximNext | Material: Aluminum Oxide Al2O3 99.99%+ | Grade/Type: Ultra High Purity (UHP) Alumina, Grade for Sapphire Crystal Growth | Purity/Composition: Al2O3 >= 99.99%, with low levels of Na, K, Fe, Si, Ca, Mg impurities | Form/Size: Pressed pellets, typically 10-30 mm diameter, bulk density 2.8-3.2 g/cm3 | Standard: Conforms to ASTM D785 or equivalent industrial purity standards; buyer-specific specs accepted | Application: Sapphire crystal growth (Czochralski process), LED substrate, optical components, watch crystals | Packaging: 25 kg sealed poly drums or 1 MT super sacks with desiccant; moisture-resistant packaging | Origin: China, Japan, Germany (varies by supplier)
Supply & Ordering: Minimum Order Quantity: 1 Bags
HS Code: 2818.20 — classified under Chemicals & Allied Products.
Ideal for: Importers, wholesalers, distributors, and manufacturers looking for quality chemicals & allied products products with verified suppliers and competitive pricing on EximNext.
| HS Code | 2818.20 |
| Brand | EximNext |
| Material | Aluminum Oxide Al2O3 99.99%+ |
| Grade/Type | Ultra High Purity (UHP) Alumina, Grade for Sapphire Crystal Growth |
| Purity/Composition | Al2O3 >= 99.99%, with low levels of Na, K, Fe, Si, Ca, Mg impurities |
| Form/Size | Pressed pellets, typically 10-30 mm diameter, bulk density 2.8-3.2 g/cm3 |
| Standard | Conforms to ASTM D785 or equivalent industrial purity standards; buyer-specific specs accepted |
| Application | Sapphire crystal growth (Czochralski process), LED substrate, optical components, watch crystals |
| Packaging | 25 kg sealed poly drums or 1 MT super sacks with desiccant; moisture-resistant packaging |
| Origin | China, Japan, Germany (varies by supplier) |
Ultra high purity aluminum oxide (alumina) pellets are engineered for sapphire crystal growth and LED substrate manufacturing. This pressed alumina form ensures high filling density in Czochralski crucibles, optimizing yield and crystal quality. Widely sourced from East Asian and European refiners, alumina for sapphire applications demands strict purity above 99.99% with controlled impurity levels. Trade volumes are significant in semiconductor and optoelectronics supply chains, with pricing sensitive to smelter capacity and downstream crystal demand.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Aluminum Oxide is available for wholesale import from Chongqing Research Better Science & technology Co.,ltd., a verified Supplier based in China. The current FOB price is 10. Minimum order quantity starts at 1 Bags. HS Code: 2818.20 — used for customs classification and import duty calculation. Key product specifications include 2818.20, EximNext, Aluminum Oxide Al2O3 99.99%+.
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Yes, Verified Supplier provides Aluminum Oxide 5qyb for bulk export from . You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
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