High Alumina Refractory Brick For Blast Furnace

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3000 pc
Supply Capability:
50000 pc/month

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Product Description:

High Alumina Refractory Brick For Blast Furnace 


Specifications

Fire brick 
1.ISO 9001 approved, 
2.With high quality and competitive price, 
3.Standard and special shape.

Fire-clay refractory brick.
1. N-1
AL2O3 (%)>42
Refractoriness >1750
Refractoriness under load KD>1400
Permanent linear change onreheating
1500*2h
1450*2h
1400*2h:+0.1; -0.4 
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>29.4

2. N-2a
AL2O3 (%)>40
Refractoriness >1730
Refractoriness under load KD>1350
Permanent linear change onreheating
1500*2h
1450*2h
1400*2h:+0.1; -0.5 
Apparent Porosity(%)<24
Cold crushing strength (Mpa)>24.5

High-alumina refractory brick
1. LZ-75
AL2O3 (%)>75
Refractoriness>1790
Refractoriness under load KD>1520
Permanent linear change onreheating
1500*2h:+0.1; -0.4 
1450*2h
1400*2h
Apparent Porosity(%)<23
Cold crushing strength (Mpa)>53.9

2. LZ-65
AL2O3 (%)>65
Refractoriness >1790
Refractoriness under load KD>1500
Permanent linear change onreheating
1500*2h:+0.1; -0.4 
1450*2h
1400*2h
Apparent Porosity(%)<23
Cold crushing strength (Mpa)>49

3.LZ-55
AL2O3 (%)>55
Refractoriness >1770
Refractoriness under load KD>1470
Permanent linear change onreheating
1500*2h:+0.1; -0.4
1450*2h
1400*2h 
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>44.1

4.LZ-48
AL2O3 (%)>48
Refractoriness >1750
Refractoriness under load KD>1420
Permanent linear change onreheating
1500*2h
1450*2h:+0.1; -0.4
1400*2h 
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>39.2


High Alumina Refractory Brick For Blast Furnace



Fire clay brick SK-32


Item

Standard

AI2O3(%)

30

Fe2O3 (%)

3.5

Refractoriness (SK)

32

Refractoriness under load,

0.2MPa, Ta, (°C)

1300

Porosity (%)

22-26

Bulk density (g/cm³)

2.05

Cold crushing strength (MPa)

25

Thermal expansion at 1000°C (%)

0.6



Fire clay brick SK-34


Item

Standard

AI2O3(%)

38

Fe2O3 (%)

2.5

Refractoriness (SK)

34

Refractoriness under load,

0.2MPa, Ta, (°C)

1350

Porosity (%)

19-23

Bulk density (g/cm³)

2.10-2.15

Cold crushing strength (MPa)

25

Thermal expansion at 1000°C (%)

0.6



Fire clay brick SK-36


Item

Standard

AI2O3(%)

50

Fe2O3 (%)

2

Refractoriness (SK)

36

Refractoriness under load,

0.2MPa, Ta, (°C)

1450

Porosity (%)

20-24

Bulk density (g/cm³)

2.30-2.40

Cold crushing strength (MPa)

45

Thermal expansion at 1000°C (%)

0.3

 

High Alumina Refractory Brick For Blast Furnace

High Alumina Refractory Brick For Blast Furnace

Features:

1. Low thermal conductivity, good thermal insulation performance.

2. Long service life, easy operation, could be shaped freely

3. Product specification: standard form, normal standard, shaped and special shaped bricks.

4. Can be used in various kilns because of its cheapness and general tray package. Among all of the refractory materials, it is the most widely used.



Application:

 

Refracory brick plant can be in direct contact with the flame,this insulating brick can be used as linings or as thermal preservation layers in various industrial furnaces and kilns in metallurgical industry, ceramic industry, chemical industry, machinery industry.

 

such as blast furnace, hot blast stoves ,electric arc furnace, cement kiln,melting furnace, ignition furnace, flue, refining equipment, heating equipment and piping, regeneration device, gas furnace, soaking furnace, annealing furnace, heat reaction chamber and other thermal industrial equipment.

High Alumina Refractory Brick For Blast Furnace




FAQ



1. Do you provide samples?


   Yes, samples are free. Guarantee samples quality same as mass production quality.


2. What's the MOQ of trial order?

 

   No limit,We can offer the best suggestions and solutions according to your condition.

 

3. Can we visit your company?

 

  Of course,welcome at any time,seeing is believing.

 

4. Do you accept OEM?

 

   Yes, we can do OEM.

 

5. What are the payment terms?

 

   Usually T/T, D/A, D/P, L/C, Western Union ,others could be discussed .

 

6. How long is delivery time?

The delivery time will be determined according to the quantity of the order.

 

7. How are your products’ quality?

 

More than 20 years of production experience. The products will be strictly inspected before shipment, so the quality could be guaranteed.


8. How to slove the quality problems?

 

If the products are not confirmed to customer samples or have quality problems,our compay will be responsible to make compensation for it.

 

9. What is the service life of your bricks?

The service life of different bricks is unlike.It also depends on your using condition and method.

 

10. How about your company's certification?

 

ISO9001 and Test Report,also we could apply other necessary certification.

 

11.  How about your price?


Quality will be guaranteed. Competitive prices based on same quality.



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Q:What's the weight of the refractory bricks?
Referred to as refractory brick. Refractory made from refractory clay or other refractory material. Light yellow or brownish. The utility model is mainly used for laying smelting furnaces, and can withstand high temperature between 1580 DEG C and 1770 DEG C. Also called brick. Refractory material of a certain shape and size. According to the preparation process can be divided into bricks, brick, electric melting brick, refractory insulating bricks (Rong Zhuzhuan);
Q:What are the requirements for refractory materials in heat treatment furnace?
Fire resistance is an important performance index of refractory materials, but it does not represent the highest temperature in actual use of refractory materials. In actual use, refractories also bear certain pressure, therefore, must consider the high strength at high temperature refractory material, which is in high temperature under certain pressure without deformation, such as the NZ-40 refractory refractory degree up to 1730 DEG C, but the maximum temperature is only 1350 degrees celsius.
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:Is glass wool inorganic thermal insulation material?
The characteristics of glass wool, glass wool is the molten glass fibrosis, the formation of cotton like material, chemical composition of glass, is a kind of inorganic fibers. With good forming, small volume density, thermal conductivity, both thermal insulation, sound-absorbing performance, corrosion resistance, chemical stability.
Q:What materials are used for roof insulation?
There are two kinds: one is a kind of cotton insulation board, such as rock wool board, aluminum silicate cotton board, but this is not environmental protection, harmful to life, foam board (this fire safety factor minimum), these relatively cheap.
Q:The difference between aluminium refractory and magnesia refractory
Therefore, the difference between the two is a neutral, one is alkaline, the original product is different naturally.
Q:What are the alloy wear resistance materials?
Alloy wear-resistant materials from different manufacturers different components in Beijing Naimo company as an example, the following alloy wear resistant material:1: Ni Cr alloy wear-resistant material2: chrome carbide wear-resistant material3: high manganese alloy wear-resistant material4: tungsten carbide alloy wear-resistant material5: nickel tungsten alloy wear-resistant material
Q:What is the price of the latest thermal insulation material?
There are many kinds of insulation materials, and the price will fluctuate with the market. Small quantities of inquiry or procurement, then go directly to the local thermal insulation market, a wide variety of prices are basically the market price.
Q:How many cubic bricks does a high alumina brick have?
It is related to the content of aluminum in high alumina bricks.
Q:Use of high alumina refractory bricks?
High alumina brick refractory than clay refractory bricks and brick refractory degree are higher, up to 1750~1790 DEG C, which belongs to high-grade refractory materials.

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