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Synthetic Black Aluminum Oxide Finish P40 / P60 / P80 / P120 For Making Sand Belts

Minimum Order Quantity : 1MT Price : Negotiation
Packaging Details : 25kg bag+Pallet,Ton Bag Delivery Time : 7-14 days depending on the order quantity
Payment Terms : L/C, T/T Supply Ability : 2500 MTS per Month
Place of Origin: Henan,China Brand Name: YEDA
Certification: ISO9001,ISO14001 Model Number: P12-P320

Detail Information

Product Name: Synthetic Aluminium Oxide, Black Fused Alumina Usage: Sand Belts
Vicker Hardness: 2000-2200kg/mm2 True Specific Gravity: ≥3.5g/cm3
Specification: P12-P320 Material: 60% Al2O3
High Light:

solid aluminum oxide


abrasive aluminium oxide

Product Description

Synthetic Aluminum Oxide Black Fused Alumina P40 P60 P80 P120 for Making Sand Belts


1. Product Description of Synthetic Aluminum Oxide Black Fused Alumina


Black Aluminum Oxide is one kind of synthetic electric corundum,it contains about 60-80% Al2O3, also has sharp

shape in black color,so it is named as black fused alumina or black aluminum oxide.


Generally speaking,electric corundum is generally divided into four types as below:

White Fused Alumina in white color,which contains 99.2% Al2O3

Brown Fused Alumina in brown color,which contains 95.0% Al2O3

Black Fused Alumina in black color,which contains 60-80% Al2O3

Pink Fused Alumina in pink color,which contains 96.5% Al2O3 and 1.0-2.0% Cr2O3


Black aluminum oxide is not so well-known as the one of white and brown aluminum oxide,at the beginning,it is just

used for polishing purpose,recently years,it is applied to the abrasives industry and gradully make full use of its

unique advantages.

2. Main Technical Index of Synthetic Aluminum Oxide Black Fused Alumina

Commodity Main Chemical Index
Al2O3 Fe2O3 SiO2 TiO2
Oridinary ≥60 6-12% ≤25% 2-4%
Top Quality ≥80 4-8% ≤10% 2-4%


Main Physical Index
Color Black
Crystral Structure Trigonal
Mohs Hardness 8.0-9.0
Vicker Hardness 2000-2200kg/mm2
Specific Gravity ≥3.5g/cm3
Bulk Density 1.68-1.22 g/cm3
Grit Size P12-F320
Product Standards GB/T Standard,FEPA Standard

3. Main Features of Synthetic Aluminum Oxide Black Fused Alumina

  • Moderate Hardness

      Black aluminum oxide contains 60-80% alumina,it has moderate hardness,will generate little heat in the treatment

     surface,which is hardly to burn the treatment,this advantages is extremely outstanding in polishing stainless steel


  • Good Self-sharpness

      Black aluminum oxide is in micro-crystalline state,the aluminum oxide is surrounded by silica particles,in the polishing

      or cutting process,it will be separated from the silica particles and fall off,then appears a new edge again to play the

       role of grinding and polishing effect,which is similar to the principe of SG abrasive.

  • Low Cost

      Compared with brown aluminum oxide,black aluminum oxide adopts lower grade bauxite as well as lower power enengy,

      so its cost is 40% lower than the one of brown aluminum oxide.

4. Main Applications of Synthetic Aluminum Oxide Black Fused Alumina


Black aluminum oxide P40 P60 P80 P120 is widely used for make coated abrasives such as sand belts, sand paper,flap

wheels,fiber wheels,it will achieve better polishing effect when black aluminum oxide is mixed with the harder abrasives

such as brown alumina to make coated abrasives.

In addition,black aluminum oxide is also used for making bonded abrasives,polishing& blasting media,fiber wheels,anti-skid

aggregates,break pad etc.


5. Product Pakages of Synthetic Aluminum Oxide Black Fused Alumina

Ton Bag

25kg Bag+Pallets;

Special packages can be customized.

 Synthetic Black Aluminum Oxide Finish P40 / P60 / P80 / P120 For Making Sand Belts 0


6. Why Choose us?


China Largest Black Fused Alumina Manufacturer,over 20 years production experience;


Occupies more than 60% Domestic Black Fused Alumina marketing;


The Stable Supplier of  Saint-gobain Group and Forsoc Group;

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