| Customization: | Available |
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| Application: | Aerospace, Industrial Ceramic, Refractory |
| Feature: | Instant Materials |
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Also known as a corundum crucible, the alumina crucible is characterized by its high alumina content, typically ranging from 95% to 99%. It can operate continuously at 1650°C, with a maximum service temperature of up to 1800°C. Our company specializes in manufacturing custom-sized crucibles to meet specific non-standard requirements.
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Ceramic Properties
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Alumina Ceramic Semiconductor
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Main Composition
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Al2O3≥99%
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Al2O3≥95%
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ZrO2≥94%
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Density (g/cm³)
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3.85
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3.6
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5.9
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Water Absorption (%)
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0
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0
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0
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Sintering Temperature (°C)
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1690
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1670
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1650
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Hardness (HV)
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1700
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1600
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1400
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Flexural Strength 4pt (MPa)
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>3500
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>2900
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>11000
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Compressive Strength (Kgf/cm²)
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30000
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25000
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25000
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Maximum Operating Temperature (°C)
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1500
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1400
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1600
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Thermal Expansion Coefficient (10/°C) (0-1000°C)
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8
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7.8
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10
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Thermal Shock Resistance T (°C)
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200
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220
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350
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Thermal Conductivity (W/m·K)
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31
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22
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3
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Volume Resistivity (Ω·cm)
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>10¹²
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>10¹²
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>10¹²
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Dielectric Strength (KV/mm)
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18
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16
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15
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Dielectric Constant (1MHz)
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9.2-10.5
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9.0-10
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12.5
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Applications
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Electronics, automotive, metallurgy, steel, chemical industries, etc.
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Alumina Crucible Cylinder Type
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Top Dia (mm)
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Bottom Dia(mm)
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Height (mm)
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Thickness (mm)
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Volume (ml)
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50-100
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50-100
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35-116
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3
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5-5000
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Alumina Crucible Rectangle Type
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Length (mm)
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Width (mm)
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Height (mm)
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Thickness (mm)
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Volume (ml)
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60-200
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30-150
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15-190
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3
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5-5000
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Note:Customized sizes are available upon request.
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