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  • Product Name: Sintered alumina
  • ID: b01

Sintered alumina

Product introduction:
  Sintered alumina, also referred to as tabular alumina, is made of imported industrial alumina as starting material by fast sintering in super-high temperature shaft kiln. Its microstructure is featured by closely packed well developed granular corundum crystals with a wide size range and many intra- and intercrystalline pores. The product is characterized by high purity, low alkali level, high strength, good thermal shock resistance and corrosion resistance. Used as aggregates and powder in alumina-based and alumina-contained refractories, it has been widely used in metallurgical industry (such as ladle lining refractories, sliding plate, purging plug, well-block, stopper, long nozzle and submerged entry nozzle for con-casting, etc) and other industries like ceramics, petrochemical, glass, etc.

 

Technical Indicators:

Data sheet of JGS-99 sintered alumina

Items

Specifications

Typical values

Chemical
composition

Al2O3 (By subtraction method)

≥99.20

99.46

Na2O

≤0.40

0.30

SiO2

≤0.15

0.09

Fe2O3

≤0.07

0.05

Magnetic Fe

≤0.02

0.01

Bulk density

≥3.50

3.55

Apparent porosity

≤5.00

3.75

Water absorption

≤1.50

0.90

 

Size availability:
  Sizes from 20 mm to under 2μm can be provided.

Product package:
  25kg/bag, 1000kg/bag, or other specific packages according to users’ requirements are available.