White fused aluminium oxide HS Code 28181090, CAS No. 1344-28-1 .As raw material of alumina powder is electrically fused in the furnace with high grade processed.It has high purity,ability of self-sharpening,better cutting,less heat emit,higher efficiency,acid and alkali resistance,good thermal stability.Abrasives tools made of it are suitable for grinding high-speed,high carbon steel ,etc.It also can be used as materials for grinding and polishing,precision casting,spaying and coating, medium body for chemical industry,special ceramics and high-grade refractory materials,etc.
Basic Indicators
| Molecular Formula | Al2O3 |
| Appearance | White powder |
| CAS No. | 1344-28-1 |
| HS Code | 28181090 |
Physical properties
Hardness: 9 mohs
Grain shape: angular
Melting point: approx. 2050°C
Specific gravity: approx. 4.0 g/cm3
Bulk density: approx. 1.5 – 2.1 g/cm3
(depending on grain size)
Typical chemical analysis
Al2O3: 99,50%
Na2O+K2O: 0,25%
Fe2O3: 0,02%
SiO2: 0,03%
CaO: 0,10%
C: 0,05%
Usage
Section sand & fine powder used for refractory,castables,painting
Size:0-1mm 1-3mm 3-5mm 3-6mm 5-8mm 8-10mm
Al2O3:99.5%min Fe2O3:0.04%max Na2O:0.3%max
Size: -100MESH -150MESH -200MESH -320MESH
Al2O3:99.0%min Na2O:0.40%max Fe2O3:0.20%max
Grit size sand used for abrasives,blasting,grinding
Size: FEPA F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F40 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220
JIS #8 #10 #12 #14 #16 #20 #24 #30 #36 #46 #54 #60 #70 #80 #90 #100 #120 #150 #180 #220
Al2O3:99.5%min Fe2O3:0.04%max Na2O:0.3%max
Micro powder used for abrasives ,lapping,Polishing
Size: FEPA F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000
JIS #240 #280 #320 #360 #400 #500 #600 #700 #800 #1000 #1200 #1500 #2000 #2500 #3000 #4000 #6000 #8000
Al2O3:99.2-99.6% Fe2O3:0.02-0.08% Na2O:0.20-0.40%
Packing and storage
Packing: Double coated plastic woven / paper bag, net weight 25kg.
Big bag packing, net weight 1000kg / 1250kg per clients’ request.
Storage: Dry, ventilated, moisture proof.
