Refractory high temperature resistance alumina ceramic disc
1. Description
Alumina is the most cost effective and widely used material in the family of engineering ceramics. The raw materials from which this high performance technical grade ceramic is made are readily available and reasonably priced, resulting in good value for the cost in fabricated alumina shapes. With an excellent combination of properties and an attractive price, it is no surprise that fine grain technical grade alumina has a very wide range of applications.
This alumina ceramic heating disc is used for heating in high temperature kiln, it can work at 1300℃.Many heating tube will go through the plate and bind together.
2.Specification
High alumina ceramic disc for radiant heater
| | Unit | |
| Content of al2o3 | % | >70% |
| Density | g/cm3 | 2.50-2.6 |
| Water absorption | % | 8-9 |
| Bending strength | MPa | 55-60 |
| Thermal Expansion coefficient(20-1000C) | 1/K | 6*10-6 |
| Young modulus of elasticity | GPa | 80 |
| Using limit | C | 1350 |
| Resistance to temperature change performance | | Very good |
SiO2 18% ,AI2O3 80%,R2O 1%,RO 1%
Compression strength>100kg/cm2
2kg softening point 1350C
Refractoriness 1750C
Max working temperature:1250C
3. Our Advantage
1. We will supply with the best price in 24 hours.
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3. High Presion per special request
4. We can communicate with u by Fluently and professional Enlish .
5. For all products u buy, Our product's warranty is for 2 years. For product problem, u can contact with us any time.
