High quality brown fused alumina for abrasive 95% min

Brand:aa

Product detail:

Specifications

Brown fused alumina / A is made of high quality bauxite,widely used in abrasives and refractory industry.

Brown Fused Alumina  is made from bauxite as main material, fusing and purifying in a pouring electric arc furnace at a temperature of over 2200 celcius degree, and made into different grain sizes through crystal, choosing, crashing, magnetic, separating, screening, washing etc. 

 

Application:

1. Coated and bonded abrasive tools

2. Lapping and polishing processes

3. Sandblasting

4. Producing mold of precision casting

5. Refractory materials including low cement castables,plastics,bricks etc.

 

 Size Available: 

Abrasives: F12-F1200,P12-P2500

Refractory:  0-1mm,1-3mm,3-5mm,5-8mm,200mesh,325mesh

Other sizes supplied as required.

 

 

Chemical composition (%):

Grit size	Al2O3	TiO2	SiO2	Fe2O3	CaO
F4-F80	95.0-96.0	1.50-3.80	1.21	0.3	0.45
F90-F150	94.5-95.5
F180-F220	93.5-95.5
F220 Finer	92.0 Min.

 

Physical Index:

Crystal system	Hexagonal
True density	3.90g/cm3 Min.
Mohs hardness	9
Micro Hardness	HV 1800 - 2200