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Quick Details

Brand Name:	Zhongsen
Model Number:	0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-12mm
Refractoriness (Degree):	Super-Class (Refractoriness> 2000°)
Material:	Alumina Block
Shape:	Block
Place of Origin:	China (Mainland)

Specifications

 PRODUCT DATA SHEET & MATERIAL SAFETY DATA SHEET
Identification of the Chemical and the Origin
Product                             : Tabular Alumina for Refractories
Country of Origin                           : China
Manufacturer of Material                        : Luoyang Zhongsen Refractory Co.,Limited
Features                                   : Good Al2O3 Crystal Shape, High Purity, Volume Stability
Picture of Product:

Manufacturing Process & Applications
Tabular Alumina is a type of sintered calcined alumina with alpha aluminium oxide(α-Al2O3) more than 99%. It is a high temperature resistant, corrosion resistant, heat shock resistant, high strength, chemicall stable material. It is produced in high temperature, which makes its alpha aluminium oxide grow into big grains. Properties are primarily those of alpha alumina with a purity of 99.8%: refractoriness, hardness, chemical inertness, thermal connectivity and dielectric rigidity at high temperature. It also has ceramic properties: high density, low open porosity, dimensional stability, creep and abrasion resistance, exceptional resistance to thermal shock, a surface coarseness which gives good bonding with matrices, and reproducible particle size distribution. These properties explain its development as a refractory  
raw material, and its use in steel making and in electric furnaces, especially in Japan. It can be used in ceramics as filters for molten metal, fillers for epoxy resins and polyester, inert catalyst supports and heat conductors. There is substantial demand for Tabular alumina: in excess of 500 000 Tpa.
 
 
Physical Specifications & Package
Main Content                                  : α-Al2O3
Specific Gravity                       : >=3.50 g /cm3
Hardness                                 : >=9 MOSH
Color                                        : White
Melting Point                                  : 2350oC
Linear Expansion Coefficient                : 7-9 under 0-1600oC
Loss on Ignition(LOI)                           : <=1.5%
Porosity                             : <=5%
Sizes Available                         :0-1mm,1-3mm,3-5mm,5-8mm,8-12mm, 0-0.2mm, 0.2-0.5mm, 0.5-1mm, 100mesh,200mesh,325mesh, other finer powder etc
Package                             : Jumbo Bag, 25kg Bag and 40 Bags on a Pallet
 
Chemical Analysis

Al2O3	SiO2	Fe2O3	Na2O
>=99%	<=0.3%	<=0.2%	<=0.4%