Wuxi Special Ceramic Electrical Co.,Ltd
                                                                                                           
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18 Years
Since 2008
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0.25 Thickness 99.5% Al2O3 Alumina Ceramic Substrate with 300 MPa Bending Strength and 30 W/m·K Thermal Conductivity

Price Negotiable
Price: us$1~us$100/P
MOQ: 10p
Delivery Time: 30days
Brand: wuxi special ceramic
Product Description
High-Performance Alumina Ceramic Substrate
This 0.25 thickness ceramic sheet features 99.5% Al2O3 alumina ceramic substrate, offering exceptional thermal, mechanical, and electrical properties for demanding industrial applications.
Alumina Ceramic Classification
Alumina ceramics are available in high-purity (99.9% Al2O3 content) and standard types. High-purity variants sinter at 1650-1990°C and transmit wavelengths of 1-6 μm, making them suitable for replacing platinum crucibles in glass melting applications.
Key Applications
  • LED packages and chip resistor substrates
  • HIC substrates for heat dissipation
  • Power modules and thermal printer head substrates
  • Integrated circuit substrates and high-frequency insulation materials
Processing Capabilities
Available processing options include thin film metallization, thick film metallization, glazing, and custom cutting to specific dimensions according to customer requirements.
Material Properties
Our alumina substrate delivers well-balanced insulation, thermal conductivity, and breaking strength characteristics. The fine particle structure provides excellent surface roughness for superior adhesion with thin and thick film metallization.
Alumina ceramic substrate sample showing white ceramic material with precise dimensions
Close-up view of alumina ceramic substrate surface texture and quality
Technical Specifications
Parameter Value
Material Name Ceramic Substrate
Color White (standard)
Dimensional Accuracy ±0.01
Density ≥3.88 g/cm³
Hardness Rockwell HRA89, Mohs 9, HV1500-1700
Modulus of Elasticity 380 GPa
Bending Strength 300 MPa
Compressive Strength 2500 MPa
Melting Point 2050°C
High Temperature Resistance 1800°C
Thermal Conductivity ≥30 W/(m·K)
Thermal Expansion Coefficient 8.6 × 10⁻⁶/°C
Breakdown Strength 15 KV/mm
Resistivity 10¹⁵ Ω·m
Manufacturer Information
Wuxi Special Ceramic Co., Ltd specializes in manufacturing alumina, silicon nitride, zirconia, steatite, boron nitride, cordierite, and mullite products. Our ceramics are widely used in metal welding, electronic conductors, mechanical assemblies, insulation systems, chemical processing, instrumentation, textile manufacturing, nuclear industry, and aerospace applications.
We accept custom manufacturing based on drawings or samples. Trial production typically requires 30 days, with mass production also completed within 30 days. Packaging options include cartons or pallets, with negotiable arrangements.
Our products are supplied to Toshiba Lighting Group in Japan and European markets, emphasizing high quality standards and rapid delivery timelines.
Manufacturing facility showing ceramic production equipment and quality control processes
Finished alumina ceramic products ready for shipment and quality inspection

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Wuxi Special Ceramic Electrical Co.,Ltd
Location No4 Longshan Road,Xinwu District,Wuxi City,Jiangsu Province
Contact Person Zhu

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