Firebrick AL2O3 content30-90%,Firebrick,dense firebrick

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China main port
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Min Order Qty:
1000 pc
Supply Capability:
1000000 pc/month

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Product Description:

Features and advantages:

1. High refractoriness.

2. Good spalling resistance and wear resistance.

3. Good corrosion resistance.

4. Good thermal shock resistance.

5. High mechanical strength.

6. High-temperature creep rate is low.

7. Good volume stability at high temperature.

Physical and chemical index:

Item/Grade

Fire clay brick

High alumina brick

SK-30

SK-32

SK-34

SK-36

SK-38

AL2O% (≥)

30

35

38

55

70

Fe2O% (≤)

2.5

2.5

2.0

2.0

2.0

Refractoriness(SK)

30

32

34

36

38

Refractoriness under load, 0.2MPa, °C (≥)

1250

1300

1370

1450

1530

Apparent porosity (%)

22-26

20-24

20-22

20-23

20-22

Bulk density (g/cm³)

1.9-2.0

1.95-2.1

2.1-2.2

2.25-2.4

2.4-2.6

Cold crushing strength ,MPa (≥)

20

25

30

45

60

Application:

Fire brick is widely used in Blast furnaces, Hot Blast Stove, Steel ladle lining, Reheating furnace, Cement kiln, Tunnel kiln,Boiler, Coke oven, Waste incinerators ,Carbon furnace, Glass kiln , Steel smelting furnace and various kiln lining and thermotechnical equipment, etc.

Firebrick AL2O3 content30-90%,Firebrick,dense firebrickCNBM International Corporation (CNBM International) is the most important trading platform of CNBM Group Corporation, a state-owned company under the direct supervision of State-owned Assets Supervision and Administration Commission of the State Council.

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Q:How many cubic bricks does a high alumina brick have?
It is related to the content of aluminum in high alumina bricks.
Q:What's the price of high alumina refractory bricks?
Their refractory bricks are of good quality and low ex factory prices. Special high alumina refractory brick factory price of 1900 yuan / ton, a high alumina brick factory price of 1650 yuan / ton... This price applies to standard size, size 230*114*65mm, more products, prices go to see.
Q:Introduction of high alumina brick
Made from alumina or other raw materials of high alumina content; formed and calcined. High thermal stability, fire resistance above 1770. Slag resistance is good, used for masonry steel smelting furnace, glass furnace, cement rotary furnace lining.
Q:What's the difference between a well type annealing furnace and a box type annealing furnace?
1. The shell of the furnace is welded by section steel and steel plate. 2, the furnace cover support adopts steel and guide rail combination mobile type. 3. The heating element is made of high resistance alloy 0Cr25Al5 produced by Beijing Shougang Group and arranged on the furnace side. 4, because the bottom bearing adopts high aluminum bricks, the circle center of the furnace set small, inside and outside heating. 5 、 furnace cover adopts hydraulic lifting, motor control, automatic walking. 6 、 temperature control system adopts PID SCR control, high accuracy.
Q:How much is one ton of high alumina refractory brick?
Three high aluminum refractory brick Zhengzhou Kuwait is generally around 800. 32 years of experience, good.
Q:What kind of material is the general metal case?
Generally speaking, the outer surface of the case is usually made of a steel plate of more than 1 millimeters. The thickness and the material of the steel plate are directly related to the rigidity of the case, as well as the capability of sound insulation and anti electromagnetic radiation. The regular manufacturers of the chassis plate thickness not less than 1.3mm, but there are also some small manufacturers with a thickness of only about 1mm steel, we do not need the ruler to the amount, as long as you put him up, the more weight in the same volume of the chassis is better, in addition, we can also use the finger bomb case shell. If you can hear the crisp percussion sound proof of the casing plate is thin and brittle, if you hear is relatively dull and heavy sound that the chassis material must be good, good general steel plate coated with a layer of thin zinc (bright part), so it can withstand high strength, impact resistance, hardness high elasticity. The frame parts of the chassis are made of high quality materials with high hardness. They are bent into angle shapes or strip shapes. We can shake the chassis frame of the case by hand. Good chassis should be relatively stable, and inferior chassis light is easy to shake. When choosing, we should also pay attention to the outer edge of the case and the edge of the inner bracket. Whether the incision is smooth or not, a good case will not appear in the case of rough edges, sharp edges, burrs and so on. While the poor case appears above phenomenon, often appear when installing the blood splattered". Generally speaking, the chassis must go through the corresponding grinding process before leaving the factory. The edge of the flat plate some burr, edges and corners are rounded, the corresponding fold some corner. When you install such a case, you don't worry about cuts, and some rough, poorly built cabinets tend to scratch your hands.
Q:Are there any differences between insulating bricks and refractory bricks?
As the name suggests, the main role of insulating brick is used to preserve heat and reduce the loss of heat. Such as: Molai S; and the firebrick is mainly used to withstand flame burn. Bricks usually do not contact fire directly, while refractory bricks usually contact the flame directly.
Q:How to make refractory bricks and boiler wall adhesion more firm?
If the condition, the user heat-resistant steel welding grip nails, expansion joints can not be too big.. Also to use high temperature aluminum brick, high temperature resistance, but also to extend its use cycle.
Q:What is the difference between high alumina brick and clay brick?
There must be a difference. They vary in color from the amount of aluminum, the weight, the temperature, and the color. 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:How high can aluminum bricks expand at 80O degrees of heat?
When an object is heated, the particle moves faster and thus occupies additional space. This phenomenon is called dilation.

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