White Fused Alumina (White Corundum)

We are the biggest supplier of white fused alumina in china, we are also the standard setter of the white fused alumina in china.We have been in the industry since 1987.

White corundum: fused alumina is widely used as a raw material in refractories, ceramics shapes, grinding wheels, sandpaper, blasting media, metal preparation, laminates, coatings, lapping, polishing, grinding and hundreds of other applications.Zhengzhou yufa, white fused alumina grains and powders are available in standard grit and powder sizes and they can also be made to individual specifications.

White Fused Alumina (white corundum)
WFA Abrasive blasting media is made of 99% aluminum oxide powder as raw material, which is refined and crystallized by electric melting (thus white corundum is also called fused alumina and white fused alumina). The white corundum sand produced by our factory has high purity, low impurities, low sodium content, uniform particles and high whiteness.

Purpose Specification Chemical composition(%)
Al203 Nao Cao
F12-F80 99.0Min 0.5Max 0.4Max
For abrasive F90-F150 98.5Min 0.6Max 0.4Max
F180-F240 98.2Min 0.7Max 0.4Max


For abrasive W1-W63 97.5Min 0.8Max 0.5 Max


0-1mm 99.0Min 0.5Max 0.4Max
1-3mm 99.0Min 0.5Max 0.4Max
For Refractory 3-5mm 99.0Min 0.5Max 0.4Max
5-8mm 99.0Min 0.5Max 0.4Max
8-12mm 99.0Min 0.5Max 0.4Max


For Refractory 0-180mesh 98.5Min 0.5Max 0.4Max
0-220mesh 98.5Min 0.5Max 0.4Max
0-320mesh 98.5Min 0.5Max 0.4Max


In 1MT Big Bag, In 25kg Plastic woven bag, 40 bags in 1MT Big Bag

Specification:

Purpose Grit No. Chemical composition (%)
Al203 Fe203 Si02 Ti02
F4-F80 95.0Min 0.3max 1.5max 3.0max
For abrasive F90-F150 94.0Min 0.3max 1.5max 3.0max
F180-F240 93.0Min 0.3max 1.5max 3max


P4-P80 95.0Min 0.3max 1.5max 3.0max
For abrasive P90-P150 94.0Min 0.3max 1.5max 3.0max
P180-P240 93.0Min 0.3max 1.5max 3max

For abrasive W1-W63 92.5Min 0.5max 1.8max 4.0max



0-1mm 94.5Min 0.3max 1.5max 3.0max
1-3mm 95.0Min 0.3max 1.5max 3.0max
For refractory 3-5mm 95.0Min 0.3max 1.5max 3.0max
5-8mm 95.0Min 0.3max 1.5max 3.0max
8-12mm 95.0Min 0.3max 1.5max 3.0max


0-3mm 94.0Min 0.3max 1.5max 3.0max
0-5mm 94.0Min 0.3max 1.5max 3.0max
For refractory 0-10mm 94.0Min 0.3max 1.5max 3.0max
0-25mm 94.0Min 0.3max 1.5max

180mesh-0 93.5Min 0.5max 1.8max 3.5max
For refractory 220mesh-0 93.5Min 0.5max 1.8max 3.5max
320mesh-0 93.5Min 0.5max 1.8max



In 1MT Big Bag ,In 25kg plastic woven bag,40 bags in 1MT Big Bag

Specification:
Chemical composition(%)
Al203 Zr02 Ti02 Si02
ZA40 50í¬60 38í¬44 1.0 Max 0.5Max

ZA25 68í¬72 24í¬30 1.0 Max 0.5Max



In 1MT Big Bag, In 25kg plastic woven bag, 40 bags in 1MT Big Bag

Specification Chemical composition(%)
Al203 Fe203 Si02 Ti02 TC
0-1mm 97.5min 0.3max 0.5max 1.0max 0.1max
1-3mm 97.5min 0.3max 0.5max 1.0max 0.1max
3-5mm 97.5min 0.3max 0.5max 1.0max 0.1max
5-8mm 97.5min 0.3max 0.5max 1.0max 0.1max
8-12mm 97.5min 0.3max 0.5max 1.0max 0.1max

180mesh-0 97.5min 0.3max 0.5max 1.0max 0.15max
220mesh-0 97.5min 0.3max 0.5max 1.0max 0.15max
320mesh-0 97.5min 0.3max 0.5max 1.0max 0.15max


In 1MT Big Bag, In 25 plastic woven bag,40 bags in 1MT Big Bag

Specification:

Grit No. Chemical composition (%)
Al203 Fe203 Si02 Ti02
F4-F100 97.5 0.15 0.5 1.5
F120-F240 97 0.2 0.8 1.5


P4-F100 97.5 0.15 0.5 1.5
P120-P240 97 0.2 0.8 1.5


In 1MT Big Bag, In 25kg plastic woven bag,40 bags in 1MT Big Bag

White Fused Alumina Introduction
White Fused Alumina (white corundum) is produced by the grinding & classification of selected Macro grain feed stock in an advanced milling and classifying facility. This ensures an iron free product of narrow particle size distribution and high whiteness.
White Fused Alumina Physics Properties
Color
White
Crystal form
Triangal crystal system
Mohs hardness
9.0-9.5
Micro hardness
2000-2200 kg/mm�²
Melting point
2250
Maximum operating temperature
1900
True density
3.90 g/cm�³
Bulk density
1.5-1.99 g/cm�³

White Fused Alumina Chemical Position Standards
Code and Size Range

Chemical Composition%
AI2O3
SiO2
Fe2O3
Na2O
F90-F150
99.50
0.10
0.05
0.30
F180-F220
99.50
0.10
0.05
0.30
#240-#3000
99.50
0.10
0.05
0.30
#4000-#12500
99.50
0.10
0.05
0.30

BFA Brown Fused Alumina powder in refractory
Brown corundum micro powder is produced by a reduction fusion of high quality bauxite in electric arc furnaces. It is both a hard and tough material with high strength, making it an excellent abrasive grain for applications.Its thermal properties make it an excellent raw material for abrasive and refractory applications.

Advantages Of 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

Applications
High Quality Brown Fused Alumina Powder for Precision Casting Bfa Brown Fused Alumina Powder in Refractory
1.Grinding and polishing of stainless steel, optical glass, bamboo or other materials.
2.For polishing various spare parts: bicycles, sewing-machine, hard metal tools, medical apparatus, timepieces, glass products and stone grinding.
3.For making abrasive tools: fiber-reinforced cutting wheels, grinding wheels, sand cloth, paper and paste.
High Quality Brown Fused Alumina Powder for Precision Casting Bfa Brown Fused Alumina Powder in Refractory