Specifications

Specificationswhite fused alumina
1. High temperature resistance
2. Excellent Mechanical Strength
3. Corrosion resistance

China White Fused Alumina/ WFA FOB price

 

White Fused Alumina, a kind of high-grade refractories, was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.The white alumina produced in titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved.

 

Applications

 

For precision casting and high-grade refractory.

 

For bake lining ,Catalyst carrier ,friction products

 

For pressure blasting hard abrasives;Refractory industry

 

For wet and dry blasting ,grinding,lapping and polishing media

 

For abrasive tools: grinding wheel, Lapping and polishing non-skid title;

 

For bonded and Coated abrasives ,Thermal Spraying (Plasma Spraying)

For lapping & Micro-Blasting applications .refractories,Ceramics and Tile

 

 

Application fields 

White Fused Alumina is the main starting material to produce high-grade unshaped and shaped refractoriness and is widely used in the field of iron-steel industry,ceramics,petrochemical industry etc. It is the ideal material to produce the unshaped refractoriness such as large ladle castables,medium and high grade BF trough castables,gunning material,pre-cast shapes and is the main material to produce alumina products such as corundum bricks, corundum and mullite-corundum sagger,refined porous plug bricks, monolithic lance composite nozzle, lining material for high temperature industrial furnaces,etc.

 As abrasives

 

White Fused Alumina can be used as consolidation & coating abrasives, wet or dry sprayed grit, suitable for ultra-precise grinding and polishing in the crystal and electronic industry and can be used to produce high-grade refractoriness. It is suitable to machine high stiffness &high tensile strength materials such as chilled steel, alloyed steel, high-speed steel, high carbon steel, etc. In addition, it can be used as catalyst, insulator, precise foundry sand, etc.

 

Uses	Specifications		Main chemical composition%
			Al2O3	Na2O	SiO2	Fe2O3
Abrasives	F	12 # -60 #	≥99.15	≤0.26	≤0.08	≤0.05
		60 # -100 #	≥99.15	≤0.28	≤0.09	≤0.06
		120 # -150 #	≥99.1	≤0.29	≤0.10	≤0.08
		180#—220#	≥99.05	≤0.31	≤0.12	≤0.1
	W	W # -63 #	≥ 98.5	≤ 0.6	≤ 0.15	≤ 0.1
		W10-W5	≥ 98	≤ 0.7	≤ 0.15	≤ 0.1
Refractory	sand sections	0-1mm  1-3mm  3-5mm 5-8mm10-20mm  1/0.3mm	≥ 99.4	≤ 0.35	≤ 0.3	≤ 0.1
	Powder	100mesh-0  200mesh-0 325mesh-0	≥ 99.4	≤ 0.35	≤ 0.3	≤ 0.1
Hardness	≥ 9.0	Linear expansion coefficient	7-9	Song share	≥ 3.6
Porosity	≤ 8.5	True Density (g/cm3)	≥ 3. 95