Refractory Bricks

High strength refractory black fused alumina corundum for sand blasting

Aug 24,2017

Black Fused Alumina Corundum is in the electric arc furnace, bauxite smelting in a prepared α- Al2O3 spinel and iron ore mainly gray-black crystal phase, which is characterized by a lower Al2O3 content and a certain amount of Fe2O3 (10%) exists, which has a moderate hardness, high toughness, high temperature, thermal performance characteristics of a given temperature.

Properties & Advantages of Black fused alumina corundum:

1.High hardness
2.Strong tenacity
3.Better bonding ability and hydrophilicity
4.Giving less heat
5.Good self-sharpening
6.Smooth surface and high finish

Chemical Data of black fused alumina corundum:


Main Chemical Composition %

















Trigonal system

Hardness (Mohs)

≥ 9.0

Melting point (°C)


The maximum temperature (°C)


True Density (g/cm3)

≥ 3. 50

Linear expansion coefficient (0-1600 °C)


Application of Black fused alumina corundum:

1, freedom, grinding, such as floor polishing before plating metal parts, aluminum products.
2, bicycle, motorcycle, sewing machines, watches and clocks, parts and components.
3, lamp decoration, plastic and hardware tools, such as polishing, is also suitable for sandblasting (spray cleaning, glass flower).
4, processing and manufacturing resin cutting disc, Angle grinding, and coated abrasive such as attached.
5, black fused alumina corundum granularity and micro powder is especially suitable for grinding and polishing stainless steel workpieces and sharpening stone, grinding paste manufacturing.
6, black fused alumina corundum is the antiskid pavement and coal mine under the storage and the material of choice.

Packaging & Shipping

Packing detials:

Black fused alumina corundum is packed with plastic bags, with water-proof cover , and tightened with plastic bandages. 25kg/bag,50kg/bag,in 1 ton bag,on pellet,or as customers' requirements.

Shipping details:

Black fused alumina corundum is shipping by vessel or train from Chinese ports.

About Us

1. Strong professional: 

Our company has thirty years producing experience in refractory products. Our manager will supervise on a various refractorys production materials, process control, quality supervision and package delivery, and ensure the products are 100% qualified. 
2.Annual supply: 
Our company has passed ISO9001 quality management system certification and SGS certification. And the annual supply of shaped and unshaped refractory product is 28, 800-35, 000 tons. 
3.Export experiences: 

Now we have gained a global sales network reaching Taiwan, Russia,  Korea, Vietnam, Pakistan, Bulgaria, French, India, Egypt,Congo, Angola, South Africa, and so on.
4. Production equipment: 
Production and testing equipments are new, complete and automated or semi- automated. Such modern facilities and equipments have provided the fine technical guarantee for the production and testing. 
5. Testing equipment: 
Our company's testing equipments as follows: 
High Temperature RUL Tester
Bulk Density Tester
The Pressure Tester
Refractoriness Tester

Our competitive Advantage:

1.Competitive Price. Make the products competitive in your market.

2.Quick Response:We promise quick response at the very first moment when we received your request. 3.Superior Customer Service:The company&nbs p;provides after sales service ensuring&n bsp;customer’s satisfactions,we believe in L ong term partnership bringing loyalty.  

4.We had been on this filed for many years and we have our own research team,the prouduction process could be concrolled strictly.

5.We have developed stable customer base overseas and kept long-term  cooperation.


1. How you can control your quality?

For each production processing,  we have complete QC system for& nbsp;the chemical composition and Physi cal properties. After production, all&nbsp ;the goods will be tested, and&nbs p;the quality certificate will be ship ped along with goods. 

2. What's your delivery time?

It usually needs about 15days-  30 days after receiving the  deposit.

3.Do you have any experiences of export?

Yes,and Now we have gained a global sales network reaching Taiwan, Russia,  Korea, Vietnam, Pakistan, Bulgaria, French, India, Congo, Angola, South Africa, and so on.

4. Do you provide free sam ples?

Yes, we can provide a free  sample for testing, If we ha ve sample in stock, The quantity based on the material type, The&n bsp;buyer should bear all the shipp ing costs.

5. Can we visit your Company?

Yes, certainly. You are very welcome to China and we will be honored to have a customer and friend.

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