Brown Aluminum Oxide Price Brown Fused Alumina for Sandblasting

Brown fused alumina (brown corundum) is made from bauxite coke by high temperature smelting in electric arc furnace. After raw material sorting, electrolytic smelting, crushing, ferromagnetic separation, screening, physical and chemical inspection, finished product packaging, warehousing and other production processes. It has the characteristics of high hardness, good crystallization, good linear fluidity, less adhesion in use, non-explosion, non-cracking and non-pulverization in use. The abrasives made by him show dark blue after calcination, no network cracks and no rust spots.

Application of Brown Fused Alumina

Abrasives, ceramics, sandblasting, polishing, precision casting, floor, refractory P sand.

Primary brown corundum	AL2O3	Fe2O3	SiO2	Density
Primary brown corundum	>=95%	<=0.3	<=1.5	3.85
Appearance	Brown-red granules
purpose	Refractories, polishing.

Secondary brown corundum	AL2O3	Fe2O3	SiO2	Density
Secondary brown corundum	70-90%	<=5	<=1.5	3.85
Appearance	Black grains or gray powders
purpose	Grinding, grinding wheel, cutting blade, sandblasting

Tertiary brown corundum	AL2O3	Fe2O3	SiO2	Density
Tertiary brown corundum	70% below	<=4.3	<=1.5	3.85
Appearance	Black grains or gray powders
purpose	Floor. Such as airport runway, playground, and factory wear-resistant floor.

Segment sand/P sand/aggregate: 0-1,1-3,3-5,5-8 mm

Micropowder No. 325,400,600,800,1000,1200,1500 mesh.

Particle size sand/F sand and fine powder: 16,20,24,30,36,46,60,80,100,120,150,180,200,220 mesh.

Grinding wheels: 24, 30, 36, 46.

Artificial abrasive material brown fused alumina grit/Brown corundum -1-

Advantages Of Brown Fused Alumina: (brown fused alumina powder, brown corundum powder)

1. Large crystal, high strength, good toughness, dense texture, high bulk density.

2. Stable performance between batches.

3. The higher grinding efficiency and polishing brightness, the grinding efficiency is much higher than the soft abrasives such as silica.

4. Good particle appearance, high surface finish of the polished object.

Product Parameter

Grains Specifications And Composition
JIS		240#，280#，320#，360#，400#，500#，600#，700#，800#，1000#，1200#，1500#，2000#，2500#，3000#，3500#，4000#，6000#，8000#
European standard		F240，F280，F320，F360，F400，F500，F600，F800，F1000，F1200，F1500
National standard		W63，W50，W40，W28，W20，W14，W10，W7，W5，W3.5