Gray Fused Mullite , Castable Refractory For Ladles Industrial Furnaces
Fused Mullite
Process Of Production:
Fused Mullite is produced by Bayer process alumina and high purity quartz sand while fusing in super-large electric arc furnace.
It has a high content of needle-like mullite crystals which confer high melting point ,low reversible thermal expansion and excellent resistance to thermal shock ,deformation under load, and chemical corrosion at high temperature.
Physical And Chemical Properties
| Items | Unit |
Index |
Typical |
|
|
Chemical composition |
Al2O3 | % | 70.00-77.00 | 73.90 |
| SiO2 | % | 22.00-29.00 | 24.06 | |
| Fe2O3 | % | 0.1 max(Fines 0.3%max) | 0.08 | |
| K2O+Na2O | % | 0.40max | 0.16 | |
| CaO+MgO | % | 0.4%max | 0.08 | |
| Refractoriness | ℃ | 1850min | ||
| Bulk density | g/cm3 | 3.00min | 3.1 | |
| Glass phase content | % | 5max | ||
| 3Al2O3.2SiO2 Phase | % | 95min | ||
Application:
It is widely used as raw materials for high grade refractories ,such as the lining bricks in glass kiln furnace and bricks used in hot wind furnace in steel industry .
It's also used in Ceramic kiln and petrochemisty industry and many other applications.
Feature
1.Low bulk density and low thermal conductivity.
2.High mechanical strength.
3.Good thermal shock resistance,
4.Tiny linear variation,no cracking.
5.Resistant to scour and erosion,abrasion.
6.Good volume stability under high temperature.
Package
1 ) . In 1MT Big Bag
2 ) . 25KG PP Big Bag In 1MT Big Bag
3 ) . According To Customers Demand
FAQ:
Q : 1 . What is the lead time?
A : Sample needs 2-5days prepared; Mass production time needs 10-25 days normally .
Q : 2. Can you provide samples ?
A : Yes , Of course.
Q : 3 . Can you shipment from Qingdao port ?
A : Yes , You can shipment at any port in china.
Get in Touch
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