| Refractoriness (℃): | 1580< Refractoriness< 1770 |
|---|---|
| Type: | Heat-Resistant Material |
| Shape: | Powder |
| Material: | Alumina Powder |
| Transport Package: | 25kg, 40kg, 50kg, Jumbo Bags, Customized |
| Specification: | fine powder |
| Samples: |
|---|
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Audited Supplier Calcined alumina for refractory materials
High-temperature calcined alumina powder takes industrial aluminum hydroxide or industrial alumina as raw material,which is calcined at appropriate temperature into α-type alumina product with stable crystal form; Using calcined α-type alumina as raw material, it is made by ball milling of alumina micropowder.
High temperature Alpha-calcined alumina raw powder - micro powder (low nano, medium nano, ordinary), uniform particle size, easy to disperse, strong fluidity, good sintering performance.
High temperature Alpha-calcined alumina raw powder is the basic raw material for the production of heat-resistant and corrosion-resistant products, such as high-alumina refractory materials, refractory bricks, advanced ceramic products, electric porcelain devices, steel charge, high temperature friction materials and raw materials in polished wear-resistant products.
Physical And Chemical Properties:
|
Typical Value |
NT-1 |
NT-2 |
NT-3 |
|
Na2O (%) |
0.06 |
0.12 |
0.04 |
|
Fe2O3 (%) |
0.02 |
0.04 |
0.04 |
|
MgO(%) |
0.01 |
0.02 |
0.01 |
|
SiO2(%) |
0.04 |
0.06 |
0.05 |
|
CaO (%) |
0.02 |
0.02 |
0.02 |
|
Specific Surface Area /BET(m2/g) |
0.85 |
0.93 |
1.28 |
|
D50 Malvern(μm) |
4.8 |
5.2 |
3.7 |
|
D90 Malvern(μm) |
11.3 |
22.7 |
9.2 |
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Audited Supplier 
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