Fused Mullite is made from pure quarz and industrial alumina in super-large electric arc furnace. Fused Mullite has a high content of mullite crystals which has a lot of advantages such as high melting point, excellent thermal stability, low reversible thermal expansion, resistance to thermal shock and chemical corrosion at high temperature. Fused Mullite is widely used as lining brick glass body kiln and large hot wind furnace in iron-making blast furnace, as well as in ceramic kiln, petroleum and chemistry.
The specification we can guarantee is as follow:
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Type
Index
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Guarantee value
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Typical value
|
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Chemical Composition (%)
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Al2O3
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70-77
|
75.30
|
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SiO2
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22-29
|
24.08
|
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Fe2O3
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≤0.1
|
0.05
|
|
R2O3
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≤0.5
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0.18
|
|
RO
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≤0.3
|
0.28
|
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Mullite phase 3Al2O3 2SiO2(%)
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≥95
|
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Glass phase (%)
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≤5
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Linear expansion coefficient (1/°C)
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-6.0×10-6
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Density of volume (g/cm3)
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≥3.0
|
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Refractoriness( °C )
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≥1840
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Grain size (mm)
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5-3 3-1 1-0
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Color
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White or Grey
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Packing
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25kg/plastic bag 1000kg/plastic bag At buyer's option
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Our business main scope includes many kinds of Industry materials ,such as Brown fused alumina,Silicon carbide,Fused silic,Fused mullite,Fused zirconia mullite,Fused spinel,Pink fused alumina,Sintered mullite,Sintered spinel,Tabular alumina,Alumina bubble,etc.
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