——PRODUCTS CENTER——


   Product Description


High-Temperature Alumina is a premium-grade alpha-phase alumina (α-Al₂O₃) produced through high-temperature calcination (>1200°C). It is characterized by ultra-high purity, exceptional thermal stability, and chemical inertness, making it ideal for advanced applications in refractories, precision ceramics, electronics, and more.


   Core Features


  • High-Temperature Performance: No softening or phase transition at 2050°C

  • Extended Durability: 3x higher wear resistance vs. standard alumina

  • Eco-Friendly & Safe: Compliant with RoHS and REACH, free of heavy metals

  • Tailored Solutions: Customizable purity, particle size, and morphology


   Technical Parameters


Crystal StructureAlpha-phase hexagonal close-packed (Corundum structure), thermodynamically stable
Purity299,5% (industrial grade), ≥99.99% (electronic grade)
Mohs Hardness9.0 (comparable to diamond)
Melting Point2050°C
Thermal conductivity30 W/m·K (at 25°C), stable under extreme temperatures
Chemical stabilityResistant to strong acids (except HF), alkalis, and oxidizing environments



Purity99.5%6,99.9%6, 99.99%
Particle sizeCoarse grains: FEPA F24-F220 (abrasive grade)

Ultrafine powder: 0.1-10um (electronic grade)
FormPowder, granules, sintered blocks
Packaging25 kg/moisture-proof woven bags, or customized per cient requirements



   Factory Display


Shandong Zhongji Metal Products Co., Ltd. is a benchmark enterprise in the field of abrasives and refractory materials, focusing on the research and development of high-end abrasive products such as white corundum, brown corundum, black corundum and glass beads. As an international comprehensive enterprise integrating industry and trade, we provide global customers with full-process solutions from raw material selection, customized production to technical services through the advantages of vertically integrated industrial chain, and always practice the business philosophy of driving quality with innovation and creating value with service.


086d7b6a256c3cba8ce46f10f14dd74b.jpeg


   Product Applications


1.Ceramic manufacturing: High temperature alumina is an important raw material for manufacturing ceramics, which can be used to make daily necessities such as ceramic bottles, bowls, and plates. Due to its high temperature resistance, wear resistance, and corrosion resistance, it is also widely used in the production of refractory materials such as refractory bricks, refractory castables, and ceramic fibers.

2. Electronics industry: High temperature alumina is an important material for manufacturing electronic components, such as integrated circuits, capacitors, resistors, etc. It has excellent insulation performance, thermal conductivity, and mechanical strength, which can protect electronic components from external environmental influences.

3. Lighting industry: High temperature alumina is widely used to manufacture reflectors and lenses for lighting equipment such as high-pressure sodium lamps and metal halide lamps. It has high reflectivity and excellent high temperature resistance, which can improve lighting effect and energy utilization efficiency.

4. Chemical industry: High temperature alumina is used as a catalyst and catalytic carrier for manufacturing chemical reactors, catalyst beds, and catalyst carriers. It has high surface area, good chemical stability, and catalytic activity, which can improve the efficiency and selectivity of chemical reactions.

5. Glass industry: High temperature alumina is an important auxiliary material for manufacturing special glass, such as solar glass, fiber glass, etc. It can improve the thermal stability, mechanical properties, and optical properties of glass, and enhance the quality and functionality of glass products.

6. Medical industry: High temperature alumina is used as a base material for artificial joints and dental restorations.


   FAQS


Q: Does it support customized production?

A: Yes, particle size distribution, packaging and special indicators can be adjusted according to needs.


Q: How to pack and ship?

A: Moisture-proof woven bags or ton bags;Sea/air transportation, DDP, FOB,CIF and other trade terms are available.


Q: Can you provide samples?

A: Free samples of 1-2kg will be sent out within 3 working days.


Q: Do you guarantee safe and secure delivery of products?

A: Yes, we always use high quality export packaging. We also use specialized hazard packing for dangerous goods and validated cold storage shippers for temperature sensitive items. Specialist packaging and non-standard packing requirements may incur an additional charge.




Submit

Relevant recommendations