Audited Supplier
Natural Corundum
Corundum Abrasives
Metal Parts
Surface Finish
Artificial Abrasives
Abrasive
Conventional Abrasive
Hexzagon
White
1.75-1.95
9
8-5 5-3 3-1 1-0
-80,-120,-240,-320
Fuda
Ton Bag
8-5 5-3 3-1 1-0
China
2818109000
Product Description
The use of brown jade
Manufacturing grinding tools: brown corundum is suitable for the manufacture of ceramics, resin high consolidation grinding tools, grinding, polishing, sandblasting, precision casting, refractory materials, etc.
Free grinding: used in imaging tube, optical glass, monocrystalline silicon, lens, table glass, crystal glass, jade and other fields.
Grasive: used for manufacturing sandpaper, gauze and other grinding materials.
Functional filler: used in automobile brakes, special tires, special building products and other fields.
Sandblasting: used in aluminum profile, copper profile, glass, washed denim, precision mold and other fields.
Type Properties | Lower sodium I | Middle sodium II | |||||||
Fraction(mesh) | Fine(mesh) | Fraction(mesh) | Fine(mesh) | ||||||
Guarantee Value | Typical value | Guarantee Value | Typical value | Guarantee Value | Typical value | Guarantee Value | Typical value | ||
Chemical Composition (%) | α-Al2O3 | ≥99 | 99.3 | ≥98.5 | 99.23 | ≥99 | 99.14 | ≥98.5 | 98.75 |
SiO2 | ≤0.2 | 0.15 | ≤0.3 | 0.22 | ≤0.4 | 0.12 | ≤0.4 | 0.19 | |
Fe2O3 | ≤0.2 | 0.04 | ≤0.25 | 0.04 | ≤0.2 | 0.01 | ≤0.25 | 0.05 | |
Na2O | ≤0.15 | 0.12 | ≤0.25 | 0.18 | ≤0.4 | 0.35 | ≤0.5 | 0.23 | |
Principal crystalline phase | α-Al2O3 | ||||||||
Crystal system | Hexzagon | ||||||||
Colour | white | ||||||||
True density (g/cm3) | ≥3.95 | ||||||||
Packing density (g/cm3) | 1.75-1.95 | ||||||||
Mohs hardness | 9 | ||||||||
Linear expansion (1/°C) | 8.3×10-4 | ||||||||
Size(mm) | 8-5 5-3 3-1 1-0 | ||||||||
Fine(mesh) | -80,-120,-240,-320 | ||||||||
Micropowder(um) | 3-5 5-10 | ||||||||
Test standard | GB/T3044-89 | ||||||||
Packing | 25kg/bag 1000kg/big bag | ||||||||
Usage | Refractories | ||||||||
