Description
Tabular Alumina is high-density, fully shrunk, coarse crystalline alpha alumina that has been converted to the corundum form. Tabular Alumina is produced by sintering ball-formed Calcined Alumina at a temperature just under the 2050°C fusion point of aluminum oxide. Tabular alumina is widely used in refractory materials. It provides high temperature resistance, thermal and chemical stability, abrasion resistance, high mechanical strength and excellent shock resistance. These products are available in spheres, as well as crushed or ground, with open or closed sizes.
Application
Tabular Alumina has been widely used as the material of choice in unshaped and shaped high performance refractories used in a variety of industries (steel, foundry, cement, glass, petrochemical, ceramic and waste incineration). Also can be the material for abrasives & abrasives tools, polishing and grinding. Other common non-refractory applications include its use in kiln furniture and for metal filtration.
Tabular alumina can replace white fused alumina in some application position, and improve the performance of refractory material.
Technical data
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Item
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SYA-99
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Grain size (mm)
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Standard
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Typical
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Apparent porosity (%)
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≥3.00
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≤5.0
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3.5
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1.00~3.00
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≤7.0
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5.5
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Volume density
(g/cm3)
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≥3.00
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≥3.50
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3.53
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1.00~3.00
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≥3.45
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3.48
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Al2O3 (%)
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≥99.00
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99.4
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NaO2 (%)
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≤0.40
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0.30
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Grain grade
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Grain size
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Grain distribution
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5-10mm
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5-7mm ≥20% 5-10mm ≥75%
7-10mm ≥40% +10mm ≤20%
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3-6mm
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3-6mm ≥90% 4-6mm ≥40% 3-4mm ≥ 20%
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1-3mm
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1-3mm ≥90% 2-3mm ≥30% 1-2mm ≥30%
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0.5-1mm
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0.5-1.18mm ≥90% 0.7-1.18mm ≥35% 0.5-0.71mm ≥20%
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0-0.5mm
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0-0.5mm ≥90% 0.5-0.154mm ≥38% -0.44mm≥2-20%
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Remark: the grain distribution can be customized as request.
Available Grain Sizes & Standard
Grain sizes standards have been issued for full ranges of Macrogrit and Microgrit sizes by FEPA, ANSI and JIS.
FEPA—— European Federation of Abrasives Producers
ANSI——American National Standards Institute
JIS——Japanese Standardization Organization
Hazards Identification
It is not dangerous to health.
Its use is not associated with danger of silicosis.
It is neither carcinogenic nor toxic.
Packaging and Shipping
50 kg plastic woven bags of 1000 kg palletized.
Other packaging types on request
All of our products can be delivered to all over the world.
All of our products can be delivered to all over the world.