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calcined alumina for refractories

600.0~800.0 USD
Min. Order: 5 Ton
Trade Term: FOB
Payment Terms: L/C, D/P, T/T, WU
Supply Ability: 2000tons
Place of Origin: Hebei

Company Profile

Location: Shijiazhuang, Hebei, China (Mainland)
Business Type: Manufacturer, Trading Company
Main Products: Vermiculite, Perlite, Mica

Product Detail

Means of Transport: Ocean
Structure: Others
Standard or Nonstandard: Standard
Function: Others
Material: Others
Brand Name: KDH
Production Capacity: 2000tons
Packing: 25kg pp bag or one ton bag or as your requirements.
Delivery Date: within 15 days delivery after payment.
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Product Description


calcined alumina for refractories
1) High AL2O3 content: 95%min
2) Professional manufacturer
3) Prompt delivery

Brown Fused Alumina is bauxite, carbon materials, iron filings in the three kinds of raw material through the melting furnace to restore the system obtained brown artificial corundum, and are thus brown corundum. Brown Fused Alumina is the main chemical ingredient AL2O3, its content is 94.5% 1 97%, and the other containing a small amount of Fe, Si, Ti and so on. Corundum because of its high hardness, toughness is good, more used as a grinding material, which is one of the most basic abrasive. Applicable to carbon steel, malleable iron and hard bronze etc. grinding. In addition, in refractory materials, chemical additives, precision casting and anti-slip material also has wider application.
Main functions:
(1) as there is high temperature, corrosion resistance, high strength properties, it poured with steel sliding gate, smelting rare metals, special alloys, ceramics, iron-smelting furnace of the lining (walls and tubes); physical and chemical containers , spark plugs, heat-resistant anti-oxidation coating.
(2) due to high hardness, wear resistance, high strength characteristics, in the chemical system, used for a variety of reaction vessels and pipelines, chemical pump parts; to do mechanical parts, various molds, such as the Roberts mold, extrusion die nozzle pencil lead, etc.; do tool, die grinding, bullet-proof material, the human body joints, sealing ring mold.               
(3) corundum insulating materials, such as lightweight corundum brick, corundum hollow ball and fiber products, widely used in a variety of high-temperature kiln furnace walls and roof, both high-temperature insulation again.
item
95
96
97
Al2O3
≥95%
≥96%
≥97%
SiO2
≤1.2%
≤1.0%
≤0.8%
TiO2
≤3.2%
≤3.0%
≤2.0%
Fe2O3
≤0.3%
≤0.2%
≤0.2%
CaO+ MgO
≤0.6%
≤0.5%
≤0.4%
Real demsity
≥3.9 g/cm3
Moh's hardness
9.0
Microhardness
2000-2200KG/MM2
Clarseness
8-5MM   5-3MM   3-1MM   1-0MM
16# 24# 30# 36# 46# 60# 70# 80# 90# 100# 120#
Fines
  180F   200F   240F   325F (Fe2O3 ≤0.50%)
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