Dayoo Advanced Ceramic Co.,Ltd
| Delivery Time | Negotiable |
| Payment Terms | Negotiable |
| Bulk Density | >3.63 |
| Elastic Modulus | 380 GPa |
| Size | Customized |
| Purity | 96%,99% |
| Dimensional Tolerance | ±0.001 mm |
| Low Thermal Expansion | Excellent |
| Properties | electric insulation |
| Density | 3.97 g/cm3 |
| Type | Alumina Ceramic Parts |
| Dielectric Strength | 15 kV/mm |
| Materials | 92% alumina powder |
| Machinability | Difficult |
| Max Operating Temperature | 1800°C |
| Electrical Resistivity | 10^14 Ω·cm |
| Water Absorption | 0 |
| Place of Origin | Made In China |
| Brand Name | Dayoo |
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Product Specification
| Delivery Time | Negotiable | Payment Terms | Negotiable |
| Bulk Density | >3.63 | Elastic Modulus | 380 GPa |
| Size | Customized | Purity | 96%,99% |
| Dimensional Tolerance | ±0.001 mm | Low Thermal Expansion | Excellent |
| Properties | electric insulation | Density | 3.97 g/cm3 |
| Type | Alumina Ceramic Parts | Dielectric Strength | 15 kV/mm |
| Materials | 92% alumina powder | Machinability | Difficult |
| Max Operating Temperature | 1800°C | Electrical Resistivity | 10^14 Ω·cm |
| Water Absorption | 0 | Place of Origin | Made In China |
| Brand Name | Dayoo | ||
| High Light | Superior Alumina Ceramic | ||
Alumina Ceramic Gaskets High-Purity Material With Density Of 3.6-3.9 G/Cm Sup3 And Flexural Strength Of 300-400 MPa
Alumina ceramic corrosion-resistant gaskets are industrial sealing components made from high-purity alumina (Al₂O₃) material, featuring exceptional corrosion resistance, high hardness, and excellent high-temperature performance. With purity typically reaching 95% or 99% and above, these gaskets boast high density and a compact structure, effectively resisting erosion from strong acids, alkalis, and organic solvents. They are an ideal sealing material for demanding working conditions.
Chemical Industry: Reactors, pipeline flanges, pump and valve seals
Semiconductor Manufacturing: High-purity chemical delivery systems
Power & Energy: Equipment handling corrosive media
Pharmaceutical & Food Industry: Sealing in sterile corrosive environments
Environmental Protection Equipment: Wastewater and exhaust gas treatment devices
✅ Superior Corrosion Resistance: Resists all acids and alkalis except HF
✅ High-Temperature Resistance: Long-term service temperature up to 1600°C
✅ Exceptional Hardness: Mohs hardness of 9, outstanding wear resistance
✅ Excellent Insulation: Volume resistivity >10¹⁴Ω·cm
✅ Dimensional Stability: Low thermal expansion coefficient, no deformation
| Parameter | Value |
|---|---|
| Material Purity | 95%/99% Al₂O₃ |
| Density | 3.6-3.9 g/cm³ |
| Flexural Strength | 300-400 MPa |
| Thermal Expansion Coefficient | 7-8×10⁻⁶/°C |
| Operating Temperature | -50°C to 1600°C |
| Compressive Strength | ≥850 MPa |
| Surface Roughness | Ra≤0.2μm (customizable) |
Raw Material Preparation: High-purity alumina powder formulation
Forming Process: Dry pressing/isostatic pressing
Sintering Treatment: High-temperature sintering at 1600-1800°C
Precision Machining: CNC grinding for dimensional accuracy
Quality Inspection: Dimensional tolerance/density/strength testing
Surface Treatment: Polishing or special coating (optional)
Clean sealing surfaces before installation to ensure no impurities
Use a torque wrench and tighten gradually in a diagonal sequence
Avoid localized stress concentration to prevent cracking
Regularly inspect sealing condition; recommended replacement cycle: 2-5 years
For extreme conditions, consider using with flexible graphite gaskets
24/7 technical support team response
Free replacement for non-human damage
Customized solutions available
Regular customer follow-up services
Q: Can it withstand hydrofluoric acid (HF) corrosion?
A: No, alumina reacts with HF. Silicon carbide material is recommended instead.
Q: What is the maximum manufacturable size?
A: Standard diameter ≤500mm; larger sizes require custom orders.
Q: How to identify genuine products?
A: Conduct density tests (≥3.6g/cm³) and XRD composition analysis.
Q: Is it electrically conductive?
A: Fully insulating, with volume resistivity >10¹⁴Ω·cm.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
We are a company with many years of experience in the production of special precision ceramics and the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics. Deyu Precision Ceramics Technology Co., Ltd. has many years of e... We are a company with many years of experience in the production of special precision ceramics and the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics. Deyu Precision Ceramics Technology Co., Ltd. has many years of e...
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