White fused alumina HS Code 28181090, CAS No. 1344-28-1, which belongs to a kind of artificial abrasive. It is made of high-quality aluminum oxide powder as raw material. After being cooled and solidified in a fixed furnace/dumping furnace by high-temperature smelting, it is crushed and shaped by a crusher, and after magnetic separation, sieved into various different particle size models of white fused alumina section sand and fine powder. The content of AL2O3 in the white fused alumina is above 99%, and the hardness is relatively high. At the same time, the white fused alumina section sand and fine powder have the characteristics of high temperature resistance and good thermal stability.Therefore, it can be used as a furnace refractory material.
1. Basic Indicators
| Molecular Formula | Al2O3 |
| Appearance | White powder |
| CAS No. | 1344-28-1 |
| HS Code | 28181090 |
2. Technical specifications
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%
3.Product Specification / Models
For Refractory
0-0.1mm 0-0.2mm 0-0.5mm 0-1mm 0.5-1mm 1-3mm 3-5mm 5-8mm 100mesh 200mesh 325mesh
Other specs are available upon request.
For Bonded & Coated Abrasives
Bonded abrasives: F24 F30 F36 F40 F46 F54 F60 F80 F100 F120 F150 F180 F220 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200
Coated abrasives: P24 P30 P36 P40 P50 P60 P80 P100 P120 P150 P180 P220 P240 P280 P320 P360 P400 P500 P600 P800 P1000 P1200 P1500 P2000 P2500 P3000
Other specs are available upon request.
For Sandblasting & Grinding
F24 F30 F36 F40 F46 F54 F60 F80 F100 F120 F150 F180 F220 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200
Other specs are available upon request.
4. Applications
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%
5. 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.
