Ceramic Product for Dental Casting Ceramic Melting Crucible
- Category: >>>
- Supplier: Shanghai Gongtao Ceramics Co. Ltd.
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Product Overview
Description
Product Data
Chemical Component
Al2O3:35.2+-1%
SiO2:50.9%+-1%
MgO:13.9%+-1%
Principal Crystalline Phase of Cordierite:≥90%
Water Absorption:23-27%
0.1Mpa Softening Temperature≥1300C
Refractoriness≥1500C
Thermal Shock Resistance:Not Crack for Three Times Under 650C
Capacity:0.45-0.55kg/L
The Tolerance for Size:+-1%
High Aluminium Physical and Chemical Properties | ||||
Properties | Units | Values | ||
Al2O3 Content | % | 77-78 | ||
Density | g/cm3 | 2.4-2.5 | ||
Water Absorption | % | 9-10 | ||
Flexural Strength | Mpa | 50-55 | ||
Thermal Expansion Coefficient (20-1000℃) | 1/K | 6.2*10-6 | ||
Young's Modulus of Elasticity | GPa | 70 | ||
Limit of Use | ℃ | 1300 | ||
Temperature Resistance | - | Well | ||
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