Spherical Alumina

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Spherical Alumina

It is consistently produced under strict quality control from raw materials to products, and has a wealth of experience in automotive applications.
We are able to provide a stable supply of high-quality products.
We have a wide lineup of products such as small/large particle size products, high thermal conductivity types, and surface treatment types.

Main features

● Large / small particle size (D50≧50um, D50≦6um) can be supplied in large quantities at a reasonable price. – It can be shipped with the specified silane coupling treatment.
● Multiple particle sizes can be mixed to a specified ratio and shipped.

Product Specification Table

PropertiesSpherical Alumina
CTE01CTE02CTE05CTE10CTE20CTE40CTE70
Particle DistributionD10μm≥0.50≥0.60≥1.50≥5.00≤8.00≤25.00≥35.00
D50μm1.2±0.32.5±0.46.0±0.513.0±2.023.0±3.050.0±5.070.0±5.0
D90μm≤4.5≤7.5≤17.0≤35.0≤50.0≤90.0≥115.0
B.E.Tm²/g2.0±0.31.5±0.20.6±0.20.3±0.20.3±0.10.2±0.10.2±0.1
E.C.μS/cm≤100≤100≤50≤50≤50≤30≤30
pH7.5±1.07.5±1.07.5±1.07.5±1.07.5±1.07.5±1.07.5±1.0
Moisture%≤0.3≤0.3≤0.3≤0.3≤0.3≤0.3≤0.3
Ture Densityg/cm³3.85±0.13.85±0.13.85±0.13.85±0.13.85±0.13.85±0.13.85±0.1
Chemiccal CompositionAl₂O₃%≥99.7≥99.7≥99.7≥99.7≥99.7≥99.7≥99.7
SiO2%≤0.02≤0.02≤0.02≤0.02≤0.02≤0.02≤0.02
Fe₂O₃%≤0.02≤0.02≤0.02≤0.02≤0.02≤0.02≤0.02
Na₂O%≤0.05≤0.05≤0.05≤0.05≤0.05≤0.05≤0.05

Packing

(1)FIBC bag (700kg or 1000kg)
(2)Paper bag (20kg or 25kg)