Sell Brown corundum

High hardness, strength, impact resistance, high temperature resistant, anti-oxidation, corrosion resistance, low creep


Technology:
Brown fused alumina use high-quality bauxite as main raw material, it is made in different particle size after purification, impurity cleaning, crystallization, sorting, crushing, magnetic separation in temperature above 2200
Product performance:
High hardness, strength, impact resistance, high temperature resistant, anti-oxidation, corrosion resistance, low creep.
Application:
Resin ceramic abrasive, sand blasting, grinding and polishing, and is widely used in anti-wear runways, high-temperature coating matrix and metallurgy, chemical industry, and other high-level furnace refractories.
Physical and chemical indicators of corundum



Use Specifications The main chemical components% Magnetic materials%
Al2O3
Fe2O3
SiO2
TiO2

Abrasives F
4#80#
≥95.0
≤0.25
≤1.5
≤2.3
≤0.05

90#150#
≥95.0
≤0.03

180#240#
≥94.0
≤0.25
≤1.5
≤2.3
≤0.02

P
8#80#
≥95.0
≤0.25
≤1.2
≤2.5
≤0.05

100#150#
≥94.0
≤0.03

180#220#
≥93.0
≤0.3
≤1.5
≤2.5
≤0.02

W
1#-63#
≥92.5
≤0.4
≤1.8
≤3



Refractories

Sand paragraph 0-1mm
1-3mm
3-5mm
5-8mm
8-12mm
≥95
≤0.25
≤1.5
≤2.3


25-0mm
10-0mm
50-0mm
30-0mm
≥95
≤0.25
≤1.5
≤2.3


Powder 180#-0
200#-0
320#-0
≥94.5≥93.5
≤0.3
≤1.5
≤3



Note: F for the consolidation abrasive and sand blasting
P for Coated Abrasives
W for the powder, W40,that is, 320 #

The physical properties of corundum
Item Indicators
Color
Dark brown (dark blue after calcining)

Crystal shape
Trigonal system

Hardness (Mo's)
≥9.0

Melting Point ()
2250

The maximum temperature ()
1900

True Density (g/cm3)
≥3. 90

Linear expansion coefficient (0-1600 )
79