• Corundum High Chrome Refractory Brick - China Made System 1
  • Corundum High Chrome Refractory Brick - China Made System 2
Corundum High Chrome Refractory Brick - China Made

Corundum High Chrome Refractory Brick - China Made

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1 m.t.
Supply Capability:
1000000 m.t./month

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The chrome corundum brick, which is characterized by good mechanical property at high temperature and chemical stability etc., is mainly used as the back lining of the coal water slurry gasifier and petrol coke pressurized gasifier in petrochemical industry, the inner lining of reaction furnace in chemical industry, and high temperature kilns in refractory industry.

So far, it has been applied in the gasifiers imported or China-made in more than 60 plants with good performance. The brick was awarded the Second Prize of Science Progress of Ministry of Chemical Industry. The annul capacity of the chrome corundum bricks is more than 4000 tons.  

 

 

  Physical and chemical index

 

Properties

CRCB-5CRCB-12CRCB-20   CRCB-30ACRCB-30B
Long term service temperature, ℃18001850185018501850
Cr2O3, %       ≥5    12       192430
Al2O3+ Cr2O3 , % ≥93939393--
Al2O3+ Cr2O3 + ZrO2 ,%    ≥--------93
Fe2O3,%      ≤0.40.40.40.40.4
Bulk Density, g/cm3      ≥3.153.203.203.303.35
Apparent Porosity , %       ≤1818181818
Cold Crushing Strength,MPa  ≥7580809090
Reheating Linear change ,%(1600℃ × 3h)

1700




Refractoriness under load, ℃(0.2MPa,0.6%),  ≥                                    ±0.3

 

Our Services

 

 

♥  Research of application basis, new technical process and new technology, development of new product, and technical consultation.

♥  Optimum solution and product supply of refractories for high temperature industries, such as iron&steel, non-ferrous, petrochemical and building materials.

♥  Engineering design, contract and consult for refractories, and civil architecture design.

♥ Research,development, manufacture and sale of superhard materials.

♥ R&D, manufacture and sale of special packing materials for export.

♥ Inspection,supervision and arbitration of refractories.

♥ Consultation and services in refractories information.

♥ Training and cultivation of high-level talents in refractories profession


China-made Corundum High Chrome Refractory Brick

FAQ

Q3: Can you offer Door-to-Door delivery?

A3: Yes, but only for some countries such us U.S., UAE, Saudi Arabia, Iran, and Russia, etc.

 

Q4: What is the minimum quantity?

A4: There is no minimum order quantity. Depending on the item and processing, there may be a minimum produc


Q:What refractory materials are used in industrial furnaces?
The working conditions of industrial furnaces should first be investigated thoroughly, and the primary and non essential factors affecting the construction of furnace materials shall be analyzed. Focus on thinking, the temperature change condition, temperature bump slag properties, furnace atmosphere, heat insulation, impact wear and other special requirements, to ensure the quality of the life and product.
Q:High temperature refractory material?
Now the definition of refractory materials, has not only depends on whether the refractoriness at 1580 DEG. Refers to the current refractories used in metallurgy, petrochemical, cement, ceramics and other production equipment with inorganic non-metallic materials.
Q:What are the main constituents of refractory bricks?
Clay brick and clay brick are mainly composed of mullite (25% ~ 50%), glass phase (25% ~ 60%) and square quartz and quartz (up to 30%). Usually with hard clay as raw material, pre calcined mature material, and then with soft clay, semi dry or plastic molding, the temperature at 1300~1400 C fired clay brick products. Can also be added a small amount of water, glass, cement and other binders to make non burning products and amorphous materials. It is a refractory brick commonly used in blast furnaces, hot blast furnaces, heating furnaces, power boilers, lime kilns, rotary kilns, ceramics and refractory bricks.
Q:What are the advantages of refractories?
Aluminosilicate refractory refractory material refers to SiO2-Al2O3 as the main ingredient, according to how much the Al2O3 content can be divided into semi silica (Al2O3 15~30%), clay (Al2O3 30~48%), high alumina (Al2O3 > 48%) three.
Q:How much is a thermal brick?
If you really want to buy thermal insulation brick, do not simply look at the price, but also to consider the quality of the product. (a piece of brick in the market basically in 6 yuan, if there is a floating price if it is because of the size of the insulation brick or distance, but floating slightly.)
Q:Which is faster for heat transfer between corundum bricks and high alumina bricks?
For example: 75 high aluminum and 43 clay bricks, 75 single weight 4.5kg or more. 43 3.65kg or so, the use of temperature 75, high aluminum in about 1520, 43 of brick 1430 or so, the color of 75 pan white, 43 of the Loess color. In short, the difference is great.
Q:What material is used in an iron smelting furnace?
Often used insulation refractories are diatomite products, asbestos products, insulation panels and so on.
Q:What is the price of concrete self insulation bricks?
Insulation brick prices also have a great relationship with the material and workmanship, such as clay brick price is much lower than high alumina brick, mullite and corundum brick prices will be higher.
Q:What kind of rock is corundum produced?
Aluminum oxide (Al2O3) mineral. Due to Mohs hardness of up to 9, mainly used as high-grade abrasives. The crystal belongs to the three party system, a dolioform six square column, some are needle or plate. Aggregates are massive or columnar. Usually white, gray, yellow and other colors. If a small amount of Cr3+ is red, a ruby is called;
Q:What problems should we pay attention to in the use of fused zirconia corundum brick (fused zirconia corundum brick) in glass furnace?
Cast brick and clay brick masonry contact, eutectic phenomenon will occur at 1300 degrees Celsius, the selection of refractory materials, should avoid eutectic phenomenon serious two kinds of refractory materials such as brick masonry contact, in the following cast brick, the most vulnerable to erosion fused zirconium corundum brick.

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