Refractory Grade Brown Fused Alumina 1-3mm

Brown fused alumina,Al2O3 95%
Abrasive:F12-F220
Refractory:0-1mm,1-3mm,3-5mm,5-8mm,etc
Powder:100F,150F,220F,325F,etc.

Brown Corundum is fused in an electrical furnace by high temperature.its main raw materials are bauxite.anthracite.it dispaly brown.its chemical composition contains Al2O3,a small amount of SiO2.TiO2.and Fe2O3.etc.the microhardness is 1800-2200kg/mm2.

the toughness is higher than silicon carbide.abrasive articles made of it are suited for grinding

metals of highten sile strength such as steel.annealed malleableiron and hard high-class

refractory products.the degree of refractory is up to 1850 centgrade.

Physical properties:
Basic mineral: a-Al2O3
Crystal size: 400-800μm
True density: more than 3.90g/cm3
Bulk density: 1.40-1.85g/cm3
Hardness: 1,800-2,200g/mm2

Application:

1) Abrasive: Produce ceramic gring wheel, resinoid gringding wheel, Grinding stone, Gringing block, sand paper, sand cloth, sand belt, polish wax, abrasive paste, coating etc..

2) Refractory material: Mainly used for abrasion and high temperature resiatant, inoxidizable aggregate and filling of shaped and monolithic refractory in steel metallurgy, various industrial stoves, electric furnace etc..

3) Sandblasting abrasive: Mainly used for various material workpieces to decontaminate, derusting, prevent corrosion, remove oxide skin etc..

4) Abrasion resistance ground: Mainly used for non-slip of airport and road, chenmical factory

board paving.

5) Precision casting: Investment casting technics of stainless steel and aluminium casting in coating.