High-Purity Alumina Ceramic Disc for 1/2″–3/4″ Brass Tap Cartridges and Valves –
Wear Resistant

| Attributes | Details |
|---|---|
| Matériel | Alumina Ceramic (Alumina ceramics,95%–99%) |
| Place of Origin | Guangdong, Chine |
| Type | Ceramic Parts |
| Application | Industrial Ceramic / Valve Core / Tap Ceramic Disc |
| Model Number | XTL |
| Brand Name | GIM |
| Processing Service | Punching / OEM Service Available |
| Color | Pure White / Black |
| Hardness | 1100 Hv5 |
| Flatness | ≤ 0.6 μm |
| Surface Roughness (Ra) | ≤ 0.25 μm |
| Fonction | Valve Core |
| Used For | Tap Ceramic Disc |
| Diameter Tolerance | < ±0.02 mm |
| Density | 3.6–3.9 g/cm³ |
| Vickers Hardness | 11–15 |
| Specification | Outer Diameter (OD): 11.5 mm – 32 mm |
| Frictional Endurance | 300,000 – 500,000 times |
| OEM Service | Supported |
| Sample | Free Sample Available |
| Selling Units | Single Item |
Main Advantages of Alumina Ceramic Disc Cartridge
Our ceramic disc cartridges are made of high-purity 95% Al₂O₃ alumina ceramic, primarily used in temperature control valves, diverter valves, surf and massage bathtub mixers, and LPG valves. These ceramic discs offer excellent sealing performance, high compressive and flexural strength, and outstanding durability—tested for over 500,000 cycles.
Key Properties of Alumina Ceramic Discs
Excellent Chemical Resistance
Resistant to acid, alkali, and chemical cleaning agents.High Pressure Resistance
Maintains performance under high-pressure conditions without deformation or leakage.Self-Cleaning Surface
Effectively resists lime scale build-up even at high water temperatures, prolonging service life.Corrosion and Abrasion Resistance
Non-corrosive material with exceptional wear resistance, ensuring long-term reliability.
Applications of Ceramic Disc Cartridges
Temperature control valves
Diverter valves for bathtubs and spa systems
LPG and gas valves
Espresso and coffee machines
Single-handle and double-handle faucet cartridges
Titration equipment and chemical analyzers
Medical devices and equipment
Ceramic seals and regulator discs
Sanitary fittings and special-purpose valves
Refrigerant valves and solid/gas dosing systems
Packaging & Delivery
Standard Packaging: Each qualified product is packed in a protective plastic bag and carton box.
Fine Packaging Option: Individual plastic bubble casing, then placed into sturdy cartons for maximum protection.
Paper Wrapping Available: For added cleanliness and moisture resistance.
Customization: OEM packaging and logo printing available upon request.

Performance For Industrial Ceramic | |||||
Item | Unit | 95Al2O3 | 96 Al2O3 | 99 Al2O3 | |
Physical Characteristics | Heat resistance | °C | 1500 | 1550 | 1800 |
Bulk density | g/cm3 | 3.6 | 3.6 | 3.9 | |
Water absorption | % | 0 | 0 | 0 | |
Mechanical Characteristics | Flexural strength | Mpa | 320 | 340 | 360 |
Hardness vickers | Gpa | 12.2 | 13.5 | 15.6 | |
Elastic modulus | Gpa | 280 | 320 | 370 | |
Poisson’s ratio | 0.22 | 0.23 | 0.23 | ||
Thermal Characteristics | Linear expansion coefficient | (20-500°C) 10-6/°C | 7.1 | 7.2 | 8 |
Thermal conductivity | w/(m.k) | 16 | 24 | 32 | |
Specific Heat | *10-3J/(kg*K) | 0.78 | 0.78 | 0.9 | |
Electrical Characteristics | Dielectric constant (1MHZ) | – | 9 | 9.4 | 9.9 |
Dielectric loss angle | *10-4 | 15 | 5 | 1 | |
Dielectric strength | *106V/m | 12 | 15 | 15 | |

✅Contact us:
website: www.nmmech.com
Messagerie électronique: jack@nmmech.com
More industry information:
🌐 1. Advanced Materials / Precision Ceramics
External Link: https://www.azom.com
Description :
Learn more about the latest trends in advanced ceramics and precision materials from AZoM, a global materials science hub that provides insights into material innovations, Applications, and manufacturing technologies.
🚀 2. Aerospace Industry
External Link: https://www.nasa.gov
Description:
The aerospace industry relies heavily on high-performance ceramics. Visit NASA to explore how ceramic materials are used in propulsion systems, thermal protection, and structural components in space exploration.
⚙️ 3. Electronics Industry
External Link: https://www.ieee.org
Description:
The electronics and semiconductor sectors depend on materials with high dielectric strength and insulation performance. IEEE is a trusted global organization that drives innovation in electrical and electronic engineering.
💡 4. Semiconductor Industry
External Link: https://www.semiconductors.org
Description:
Discover how advanced ceramics contribute to semiconductor manufacturing — from wafer handling to plasma etching — at the Semiconductor Industry Association (SIA).
🚗 5. Automotive Industry
External Link: https://www.sae.org
Description:
The automotive industry increasingly adopts advanced ceramic components for fuel systems, sensors, and EV batteries. Visit SAE International for standards and innovations driving automotive engineering forward.
🏥 6. Medical & Healthcare
External Link: https://www.fda.gov/medical-devices
Description:
Advanced ceramics play a vital role in medical implants and devices due to their bio-compatibility and wear resistance. The U.S. FDA Medical Devices Center provides regulatory and research information in this field.
⚡ 7. New Energy / Renewable Energy
External Link: https://www.energy.gov
Description:
In the renewable energy sector, ceramics are used for high-temperature fuel cells and power electronics. Visit the U.S. Department of Energy (DOE) for innovations and materials research in sustainable energy technologies.






















