Our 99% purity alumina ceramic (Al2O3 ceramics) components are engineered for extreme environments, offering exceptional wear resistance, electrical insulation, and thermal stability up to 1500°C. Customizable for your specific machinery requirements.
Product Introduction
Premium Al₂O₃ Ceramic Blocks for Extreme Environments
Our 99% Alumina Ceramic Block (Al₂O₋) is engineered for maximum wear resistance, corrosion protection, and thermal stability in harsh industrial applications. As a leading manufacturer of alumina ceramics, we provide high-purity ceramic blocks that outperform metals, polymers, and lower-grade ceramics in durability and longevity.
Industrial Applications & Case Studies
1. Mining & Mineral Processing – Wear Protection
Problem: Steel chutes and liners wear out quickly in abrasive slurry environments.
Solution: Our alumina ceramic blocks are used as:
Slurry pump liners
Cyclone separator wear plates
Hopper and chute linings
Result: A mining company reported 10x longer lifespan compared to hardened steel, reducing downtime by 70%.
2. Power Plants – Abrasion & Corrosion Resistance
Coal Handling Systems: Ceramic blocks in pulverizer wear plates
Flue Gas Desulfurization (FGD): Liners for corrosive slurry flow
Ash Handling: Impact-resistant ceramic blocks for conveyor systems
3. Steel & Foundry – High-Temperature Stability
Ladle Liners: Withstand molten metal splashes
Burner Nozzles: Resistant to thermal shock
Roller Guides: For continuous casting machines
4. Chemical Processing – Corrosion Resistance
Reactor Linings: Acid-resistant Al₂O₃ ceramic blocks for HCl, H₂SO₄ environments
Pump Casings: For abrasive chemical slurries
![]() |
Why Choose Alumina Ceramic Blocks?
✔ Superior Wear Resistance
10x harder than steel (1600 HV vs. 200-800 HV for metals)
Ideal for abrasive particle impact (sand, coal, ores)
✔ Extreme Temperature Stability
No deformation up to 1650°C
Low thermal expansion minimizes cracking
✔ Chemical Inertness
Resists acids, alkalis, and solvents
No corrosion in harsh chemical environments
✔ Custom Engineering Support
Prototyping & Testing: We validate performance before mass production
Fast Turnaround: Standard sizes in stock, custom blocks in 2-4 weeks
Ceramic Properties
Properties | Units | Cordierite Ceramic | Mullite Ceramic | 95%Alumina Ceramic | 99%Alumina Ceramic | 99.5%Alumina Ceramic | 99.7%Alumina Ceramic | Silicon Nitride | Zirconia Ceramic |
Colour | Yellow | White | White | Light yellow | Light yellow | Light yellow | Black | White | |
Density | g/cm3 | 1.9 | 2.6 | 3.6 | 3.8 | 3.8 | 3.9 | 3.2 | 6 |
Flexural Strength | Mpa | 30 | 120 | 300 | 350 | 375 | 375 | 800 | 1100 |
Compressive Strength | MPa | 350 | 500 | 2500 | 2800 | 2800 | 2554 | 2600 | 3000 |
Modulus of Elasicity(20℃) | Gpa | 40 | 100 | 300 | 350 | 350 | 357 | 290 | 320 |
Max Use Temperature | °C | 1200 | 1300 | 1400 | 1500 | 1500 | 1760 | 1300 | 1050 |
Thermal Condutivity | W(m.K) | 1.3-1.8 | 2~6 | 20 | 30 | 30 | 33-38 | 25 | 3 |
Thermal Expansion Cofficient | 10-6/°C | 2.5-3 | 2.5-3 | 7.5 | 8 | 8.2 | 8.2 | 3 | 10 |
Thermal Shock Resistance | △T℃ | 300 | 150 | 140 | 150 | 200 | 223 | 600 | 250 |
Dielectric Strength | KV/mm | - | - | 15 | 18 | 18 | 23.4 | 14 | 15 |
Dielectric Constant | Er | 8 | 8 | 9 | 9.2 | 9.2 | 9.84 | 9 | 26 |
Production process
1. Grind and crush the raw materials to be slurry or powder
2. se-different method to making the slurry or powder into semi-finished products
3. Put the semi-finished products into the kiln for dewaxing and sintering;
4. After forming and sintering, Ceramic Sleeves products can also be processed by subsequent CNC precision machining according to the drawing requirements. Then Q/C test.
5. Finally package Ceramic Sleeves by bubble paper or cartons and place it on tray for delivery
Certifications
Our customers
Packaging and shipping
Transport
FAQ:
Q: Do you have the products in stock?
A: Some standard produce have in stock, such as ceramic band heater insulator; bobbin heater insulator and ceramic connector. But it needs to check according to your requirement.
Q: How do you pack the goods?
A: Our standard packaging is carton, we can customize it as per your requirement as well.
Q: How many days do you finish the sample?
A: Usually 15 business days (Including 8days for making furnaces and 7days for producing samples)
Request A Quote Today
Whether is a product enquiry or technical help, please send messager here, our team will respond within 8 hours.
Subject : Wear Resistantance 99 Alumina Ceramic Block for Industrial Applications
If you have any questions or need help, feel free to contact with our team.
Phone
+86 183 5248 9056
Location
Qianluo Village, Dingshu Town, Yixing City, Jiangsu Province, China
Welcome to subscribe to our email message!
Copyright © Yixing Shengda Refractory Ceramic Co., Ltd. All Rights Reserved | Sitemap | Powered By