Category Archives: White Fused Alumina

White Fused Alumina Micro

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Description:

White aluminum oxide is a high purity abrasive electrically fused from Bayer processed alumina. This material is classified to exacting standards for various applications where higher purity levels and reduced iron content are required.

Applications:

White aluminum oxide powders are used for micro blasting, precision lapping, fine grit grinding wheels, thermal coatings, polishing compounds, etc.

Typical Chemical Analysis:

Aluminum Oxide (Al2O3) 99.24%
Titanium Dioxide (TiO2) 0.02%
Silicon Dioxide (SiO2) 0.02%
Iron Oxide (Fe2O3) 0.09%
Sodium Oxide (Na2O) 0.60%
Others 0.03%

Physical Characteristics:

Crystal Form: Alpha-Alumina
True Density: 3.95 g/cm3
Hardness: Mohs 9.0
Melting Point: 2000°C
Color: White

 

Sizing Test Methods:

FEPA Standard 42-2: 2006
JIS R 6001 – 1998
Micron sizes based on Coulter Multisizer

 

Products Available:

FEPA F240 – F1200
JIS #240 – #8000
Micron/Optical sizes 50.0um – 1.0 um

FEPA F Standard – Powders/Microgrits

D3% D94%
Size Max. D50% Min.
240 70 42.5-46.5 28
280 59 35.0-38.0 22
320 49 27.7-30.7 16.5
360 40 21.3-24.3 12
400 32 16.3-18.3 8
500 25 11.8-13.8 5
600 19 8.3-10.3 3
800 14 5.5-7.5 2
1000 10 3.7-5.3 1
1200 7 2.5-3.5 1(80%)

 

Certifications Available:
FEPA
JIS

 

 

Packing:

20 Kg/25Kg Paper bags, 25 Kg PP bags,50 Lbs Paper bags, 2000lbs Jumbo,1MT Jumbo Bags etc.  

White Fused Alumina Macro

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Description:

WAE-17 It is a kind of white fused alumina electrically fused in arc furnace with high grade processed alumina as raw material. It has higher hardness and slight lower toughness comparing with brown fused alumina. It is also characterized by its high purity, ability of self-sharpening, better cutting, less heat emit, higher efficiency, acid and alkali resistance, good thermal stability

Applications:

As an abrasive, it is suitable for grinding high-speed, high carbon steel, as loose grains, it widely used for polishing, precision casting, spring and coating.

Typical Chemical Analysis:

Aluminum Oxide (Al2O3) 99.78%
Sodium Oxide (Na2O) 0.16%
Silicon Dioxide (SiO2) 0.02%
Iron Oxide (Fe2O3) 0.04%

Physical Characteristics:

Crystal Form: Alpha-Alumina
True Density: 3.95 g/cm3
Hardness: Knoop (100) 2000 kg/mm, Mohs 9.0
Melting Point: 2000°C
Color: Brilliant White
Shape
Magnetic Material

 

ANSI Test Methods:

Chemistry: B74.14
Sizing: B74.12
Bulk Density: B74.4

 

Bulk Density (g/cm3):

Grit BD Grit BD
8 No Specification 60 1.63 – 1.73
10 No Specification 70 1.62 – 1.72
12 1.78 – 1.88 80 1.59 – 1.69
14 1.78 – 1.88 90 1.58 – 1.68
16 1.78 – 1.88 100 1.55 – 1.65
20 1.78 – 1.88 120 1.52 – 1.62
24 1.77 – 1.87 150 1.50 – 1.60
30 1.75 – 1.85 180 1.46 – 1.56
36 1.73 – 1.83 220 1.44 – 1.54
46 1.70 – 1.80 240 1.43 – 1.53
54 1.66 – 1.76

 

Grit Sizes (F)
8 12 14 16 20 22 24 30 36 40 46 54 60 70 80 90
100 120 150 180 220 240 280 320 360 400 500 600 800 1000 1200

Certifications Available:

JIS, ANSI and FEPA

 

 

Packing:

20 Kg/25Kg Paper bags, 25 Kg PP bags,50 Lbs Paper bags, 2000lbs Jumbo,1MT Jumbo Bags etc.  

MSDS White Fused Oxdie Alumina

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MSDS for White fused oxide aluminum

 

1.Product Name Company

Name：White Fused Oxide Aluminum

Product：White Fused Oxide Aluminum

Company：KOWA ABRASIVE K.K.

Address :2266 Anamushi Kashiba City NARA JAPAN

Phones ：+81-745－76－3702

FAX：0745－76－3704

Email：kowa.n@f4.dion.ne.jp

 

2.Composition/Informationon Ingredients

Type of Product

Chemical NameAluminum Oxide(Al2O3)

CAS number:1344-28-1

Impurities contributing to There are no restrictive to the regular use of the product

the hazard:

3.Hazards Identification

Adverse human health Effects： High concentrations would cause irritation to the respiratory system

Environmental Effects: No environmental effect has been identified in the regular use of the product

Physical and Chemical Hazards: No physicalor chemical hazard has been identified in the regular us of the product

Specific Hazards: No specific hazard has been identified in the regular use of the product

4.First aid Measures

Inhalation: In case of respiratory difficulties, move to ventilated areas and look for medical assistance,

Skin Contact: In case of skin irritation, wash the affected local with fresh water and look for medical

assistance

Eye Contact: In case of eyes irritation, wash your eyes with fresh water ,and look for medical assistance

Ingestion: Look for medical assistance.

5. Fire-Fighting Measures

General Information:  Not Flammable.

Extinguishing Media: Use the adequate extinguisher according to the fire source.

6. Accidental Release Measures

Personal Precautions: In high levels of airborne exposure, respiratory and eyes protection. If possible,

Use a exhausting system.

Environmental Precautions: This product is inert to the environment and don`t request any special precaution

7. Handling and Storage

Handling

Technical Measures: There are no restrictions.

Precautions: Material may be stared in dry and ventilated local, avoiding humidity contact. Avoid contact with other products to prevent contaminations. Respect a maximum of three pallets or big bags stack This material must be kept away from sharp-edged materials to avoid package damaging.

Safe handling Advice: Respect the maximum stack of three pallets or super sacs.

Storage

Technical Measures: There are no restrictions.

Storage conditions: May be stored in dry, ventilated and free of contaminations. It`snot recommended humidity levels higher than 65%.

Incompatible Products: No restrictive information has been found about incompatible products during storage.

Packing Materials: It`s recommended to main the material in its original packing, including original pallet.

8. Exposure Controls/Personal Protection

Personal Protective Equipment

Respiratory Protection: In normal conditions a NIOSH/MSHA approved air respirator is recommended.

Hand Protection: Impervious gloves are recommended.

Eye Protection: Approval Chemical workers goggles.

Skin and Body Protection: Entire body clothes are recommended.

Airborne Exposure Limit:6mg/㎥

9. Physical and Chemical Properties

Physical State:Solid

Color:White

Odor: Odorless

ph{24% 9

Fusion Point:2020℃

Flash Point:Not applicable

Explosion Properties: Not applicable

Density: 3.98g/ｃｍ２

Solubility: Not soluble in water

10. Stability and Reactivity

Stability Stable in the storage conditions described in the item 7.

Hazardous Reaction: There are no restrictions.

Hazardous Decomposition Products: There are no restrictions in the regular use of the material.

11. Toxicological Information

Acute Toxicity: There are no restrictions in the regular personal exposition.

Local Effects: There are no restrictions in the regular personal exposition.

Other Indication: The inhalation of dust must be prevented, because inert material can also harm the respiratory ways

 

12. Ecological Information

Information related with normal routes of exposition had not been found . Environmental problems are not expected when the product is handled and used as indicated.

13.Disposal Considerations

Waste from Residues: Waste of this product must be dispose of in accordance with federal, state and local

regulations.

There is no restrictive hazardous information about recycling this product. Residues of this product must be

disposed according to the regulation.

Contaminated Packing: Waste of this product packing must be dispose of in accordance with federal, state

 and local regulation.

Contaminated Packing : Waste of this product packing must be dispose of in accordance with federal ,

state and local regulations. There is no restrictive hazardous information about recycling the packing.

14.Transport Information

Transport Information: There are no restrictions.

15.Regulatory Information

there are no specific international regulations for this product. State and local regulations must be consulted.

WFA Macro Bonded

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Description:

KWAMB is a kind of white fused alumina electrically fused in arc furnace with high grade processed alumina as raw material. It has higher hardness and slight lower toughness comparing with brown fused alumina. It is also characterized by its high purity, ability of self-sharpening, better cutting, less heat emit, higher efficiency, acid and alkali resistance, good thermal stability. 

Applications:

KWAMB is suitable for making abrasive stone, oil stone or for refractory coating and anti-skid tile, as loose grains, it widely used for pressure blasting and polishing.

 

Typical Chemical Analysis:

Al2O3                       99.20%
Na2O                         0.25%
SiO2                          0.07%
Fe2O3                        0.06%

 

Physical Properties:

Color                          White
Shape                        Angular grain shape
Crystal Form              Alpha alumina
Specific Gravity          3.90
Hardness                   2150 Knoop scale
Magnetic Material       0.0025%

 

Grain Sizes Available (F):

12, 14, 16, 20, 22, 24, 30, 36, 40, 46, 54, 60, 70, 80, 90, 100, 120, 150, 180, 220.

 

Typical Bulk Density:

Grit(F)      g/cc       Grit(F)      g/cc          Grit(F)     g/cc      Grit(F)     g/cc
12         1.74        30        1.77           60        1.65      120       1.51
14         1.72        36        1.76           70        1.62      150       1.48
16         1.72        40        1.72           80        1.59      180       1.46
20         1.72        46        1.71           90        1.55      220       1.44
24         1.79        54        1.69           100       1.54   

 

Grain Size Distribution :

Upon ANSI B74.12-2001, FEPA-Standard 42-1:2006 or ISO 8486-1, Agency and MIL Spec.

 

Packing:20 Kg/25Kg Paper bags, 25 Kg PP bags,50 Lbs Paper bags, 2000lbs Jumbo,1MT Jumbo Bags etc.        

WFA Macro Coated

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Description:

KWAP is one kind of high pure White Fused Aluminium oxide grain for coated abrasives, Its high friable, well self-sharpening ability makes the grain continuously exposes the sharp face on the working pieces. 

Applications:

KWAP can be well used for many kinds of Coated abrasives like sanding paper, sanding cloth, and sanding belt.

 

Typical Chemical Analysis:

Al2O3                     99.45%
Na2O                       0.26%
SiO2                        0.13%
Fe2O3                      0.04%
 
Physical Properties:
Color                         White
Shape                       Angular edge sharp
Crystal Form             Alpha alumina
Specific Gravity         3.95
Hardness                  2150 Knoop scale
Magnetic Material      0.0025%

 

Macrogrit Sizes Available (P):

12, 16, 20, 24, 30, 36, 40, 50, 60, 80, 100, 120, 150, 180, 220.

 

Typical Bulk Density:

Grit(P)     g/cc            Grit(P)      g/cc             Grit(P)     g/cc
12          1.78             36            1.75              100       1.60
16          1.77             40            1.74              120       1.55
20          1.76             50            1.68              150       1.55
24          1.76             60            1.67              180       1.52
30          1.75             80            1.62              220       1.50

Grain Size Distribution :

Upon ANSI B74.18-2006, FEPA-standard 43-1:2006 or ISO 6344-2: 1998 

Packing:

20 Kg/25Kg Paper bags, 25 Kg PP bags,50 Lbs Paper bags, 2000lbs Jumbo,1MT Jumbo Bags etc.

WFA Macro Blasting

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Description:

KWAMB is a kind of white fused alumina electrically fused in arc furnace with high grade processed alumina as raw material. It has higher hardness and slight lower toughness comparing with brown fused alumina.It is also characterized by its high purity, ability of self-harpening, better cutting,less heat emit, higher efficiency, acid and alkali resistance, good thermal stability.

Applications:

KWAMB is suitable for making abrasive stone, oil stone or for refractory coating and anti-skid tile, as loose grains, it widely used for pressure blasting and polishing.

 

Typical Chemical Analysis:

Al2O3                     99.20%
Na2O                       0.25%
SiO2                        0.07%
Fe2O3                      0.06%

Physical Properties:

Color                          White
Shape                        Angular grain shape
Crystal Form              Alpha alumina
Specific Gravity          3.90
Hardness                   2150 Knoop scale
Magnetic Material       0.0025%

 

Grain Sizes Available (F):

12, 14, 16, 20, 22, 24, 30, 36, 40, 46, 54, 60, 70, 80, 90, 100, 120, 150, 180, 220.

 

Typical Bulk Density:

Grit(F)     g/cc       Grit(F)     g/cc         Grit(F)     g/cc       Grit(F)     g/cc
12          1.74        30          1.77           60         1.65       120      1.51
14          1.72        36          1.76           70         1.62       150      1.48
16          1.72        40          1.72           80         1.59       180      1.46
20          1.72        46          1.71           90         1.55       220      1.44
24          1.79        54          1.69           100       1.54    

 

Grain Size Distribution :

Upon ANSI B74.12-2001, FEPA-Standard 42-1:2006 or ISO 8486-1, Agency and MIL Spec.

Packing:

20 Kg/25Kg Paper bags, 25 Kg PP bags,50 Lbs Paper bags, 2000lbs Jumbo,1MT Jumbo Bags etc.  

WFA Micro Bonded

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Description:

KWAMIC is a white fused alumina electrically fused in arc furnace with high grade processed alumina as raw material. It has higher hardness and slightly lower toughness comparing with brown fused alumina. It is also characterized by its high purity, ability of self-sharpening, better cutting, less heat emit, higher efficiency, acid and alkali resistance, good thermal stability.

Applications:

KWAMIC is a prevalent material for variety of precision components, the representational applications are high quality blasting,polishing of ITO conductive glass, LCD modules, high quality plane lens and prism lens.

 Chemical Analysis: 

KWAMIC

Al2O3

Na2O
Promised value Testing value Promised value Testing value
F240-F800 98%min. 99.21% 0.80%max. 0.36%
F1000-F1200 97.5%min. 99.13% 0.90%max. 0.33%

 Physical Properties:

Color                          White
Shape                        Angular edge sharp
Crystal Form              Alpha alumina
Specific Gravity          3.90
Hardness                   2150 Knoop scale
Magnetic Material       0.0025%

Microgrit Sizes Available :

FEPA “F” 230, 240, 280, 320, 360, 400, 500, 600, 800, 1000, 1200, 1500, 2000

JIS 240, 280, 320, 360, 400, 500, 600, 700, 800, 1000, 1200, 1500, 2000, 2500, 3000,4000, 6000, 8000.

Packing:

20 Kg/25Kg Paper bags, 25 Kg PP bags,50 Lbs Paper bags, 2000lbs Jumbo,1MT Jumbo Bags etc.

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