Aluminum Silica Refractory Brick for Hot Blast Furnace

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
10 m.t.
Supply Capability:
300 m.t./month

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Product Description:

Aluminum Silica Refractory Brick for Blast Furnace

Place of Origin:

China (Mainland)

Shape:

Brick

Material:

Mullite

SiO2 Content (%):

0

Al2O3 Content (%):

>48

MgO Content (%):

0

CaO Content (%):

0

Refractoriness (Degree):

1770°< Refractoriness< 2000°

CrO Content (%):

0

SiC Content (%):

0

Model Number:

follow as customer's requirement

Brand Name:
Size(mm):

230x114x65/75

Refractoriness(°C):

≥1750-1790

Bulk Density (g/cm3):

2.2-2.3

Apparent porosity(%):

≤22-23

Cold crushing strength (Mpa):

≥39-54

Refractoriness under load(0.2MPa) (°C):

≥1420-1520

Reheating Linear Change:

+0.1~ -0.4






Packaging & Delivery

Packaging Details:on wooden pullet covering by PE membrane or by customer's requirment
Delivery Detail:within 30days after deposit

 

Product Description

 High Alumina Brick/Rrefractory Brick/Fire Brick

High alumina brick refers to fire brick containing Al2O3 more than 48%, which is made of high grade bauxite through high temperature calcinations. High alumina brick is a kind of neutral refractory material so that it enjoys excellent resistance to acid and alkali corrosion. It has characteristic of high refractoriness under load, which decide high alumina brick is a n ideal material for various kinds of industrial furnace. It is widely used in building lining of hot-blast stove, blast furnace, coke oven, rotary kilns of cement and so on.

Product name

China aluminum silica refractory brick

Size and Specifications

230x114x65mm

230x114x75mm

 

Special size brick is also available according to your drawings.

Type

High Alumina Brick

 

Characteristics

1 Excellent thermal stability

2 High refractoriness under load

3 Chemical stability and anti-corrision

4 Small high temperature creep rate

5 Excellent thermal shock resistance

Typical Use

1 Building materials for blast furnace

2 Building materials for hot-blast stove

3 Building materials for coke oven

4 Building materials for steel making furnace

5 For ladle

6 For construction material in steel industry

Operating Temperature

1770°C

Service

The size, density, chemical composition can be customized.

Port

Qingdao Port

Payment terms

L/C, T/T, D/A, D/P, Western Union, MoneyGram, Cash

Delivery

Within 30 days after receiving deposit

Packing

wooden pallet with shrinkage film, paper protect angle.

Certificate

ISO 9001

 

Physial properties and chemiacal composition

Item

SK38

SK37

SK36

SK35

Al2O3 %

≥75

≥65

≥55

≥48

Fe2O3 %

≤2

≤2

≤2

≤2

Refractoriness °C

≥1790

≥1770

≥1750

≥1420

Apparent porosity %

≤23

≤23

≤22

≤22

Cold crushing strength Mpa

≥53.9

≥49.0

≥44.1

≥39.2

Refractoriness under load(0.2MPa) °C

≥1520

≥1500

≥1470

≥1420

Reheating Linear Change %

+0.1(1500°C, 2h)

--

-0.4(1400°C, 2h)

--


China Aluminum Silica Refractory Brick


China Aluminum Silica Refractory Brick

Our competitive Advantage:

China Aluminum Silica Refractory Brick 

Packaging & Shipping

1.Packing by Plastic film and pallets or wooden box and others as requested.

2.Shipping by 20Ft container.

3.For more details of our products and others.Please kindly contact us.

FAQ:

Q1:Are you a manufacture or trader?

A:Factory+trade(mainly factories,at the same time,we operates other related products).

Q2:Can we visit your factory?

A:Sure,welcome at any time,seeing is believing.

Q3:What's the MOQ of trial order?

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

Q4:Which payment terms can you accept?

A:T/T,L/C,Western Union,Moneygram,Paypal are available for us.

Q5:After an order is confirmed,when to deliver?

A:15-25days after deposit.

Q6:Is your company accept customization?

A:We have own factory and excellent technical team,and we accept OEM service.

Q7:How about your company's certification?

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

Q8:How to slove the quality problems?

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

Q9:Can you offers samples?

A:Of coures,samples are free but freight paid by the buyers.

Q10:What is the service life of your bricks?

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

Thanks for your coming in,if there is any question,I will be glad to help you.


Insulation Materials

Please you can also request the full range of auxiliary and insulating products, such as calcium silicate

boards and pipes, ceramic fiber products:

  • Blankets

  • Boards

  • Papers

  • Modules

  • Textiles

  • Others

In addition, all kinds of metallic and ceramic anchors are also available.


Our Team

Aluminum Silica Refractory Brick for Hot Blast Furnace


        Welcome to our factory.^_^


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Q:How to improve the thermal conductivity of the coke silicabrick rate?
The content of SiO2 is 98.23% crystalline silica as raw material, with sulfite pulp liquid as binder, millscale and lime as mineralizer, by Jin Hongshi (TiO2) as additive, can improve the rate of thermal conductivity of silica brick for coke oven. When the rutile content is 1.5%, the coefficient of thermal conductivity of silica brick for coke oven is 2.66W/ (m.k).
Q:Why is the new trend of the high thermal conductivity of silica brick
The use of high thermal conductivity of silica brick, reducing coke fuel consumption, reduce emissions of pollutants such as NOx, with considerable economic benefits and social benefits, is the future direction of the new technology of using coke oven refractory.
Q:The brick is mainly used in the place?
Partitions used in coking and combustion chambers for coke ovens
Q:The difference between clay refractory bricks and refractory brick in the application.
Clay brick features good thermal shock resistance and low price, but high temperature performance is not well integrated, and the long-term use temperature is not higher than 1300 degrees. It is widely used in low temperature parts of various kilns.
Q:How much is the highest melting point of silicon?
. True density 2.35g/cm3. With acid resistance, slag erosion performance. Higher high temperature strength. The softening start temperature is 1620~1670 degrees. Long term use at high temperature without deformation. The thermal shock resistance is low (the heat exchange in water is 1~4 times). The natural silica is used as the raw material, and a proper amount of mineralizer is used to promote the transformation of quartz into quartz in the body. Slowly sintered at 1350~1430 DEG C in the reducing atmosphere. The total volume of heating to 1450 DEG about 1.5~2.2% expansion, the residual expansion will make cutting seam sealing, ensure masonry tightness and good structure strength, so that the brick load softening temperature will reach 1750 degrees Celsius above 1620 degrees in the case of the highest melting point.
Q:High temperature refractory material?
Special materials often use AZS brick (i.e. corundum brick), corundum brick, magnesia chrome bricks, silicon carbide, silicon nitride bonded silicon carbide, nitrides, silicides, sulfide, boride, carbide and other non oxide refractory materials; calcium oxide, chromium oxide, alumina, Magnesium Oxide, beryllium and other refractory materials. Insulation refractories are often used diatomite products, asbestos products, insulation board. Unshaped refractories are often used refractory castable, refractory clay, refractory ramming material, refractory plastic and fettling material, fire resistance, gunning, refractory cast material, fireproof coating, lightweight refractory castable, gun mud.
Q:What are the main constituents of refractory bricks?
Refractory brick composition is mainly composed of a variety of aggregate or aggregate and one or more kinds of sticky agent composed of mixed powder particles, when used, must be mixed with one or more liquids, mixing evenly, with strong liquidity. Different refractory bricks are different, such as silicon, aluminum, clay and so on:
Q:The difference between clay refractory bricks and refractory brick in the application??
Clay brick features good thermal shock resistance and low price, but high temperature performance is not well integrated, and the long-term use temperature is not higher than 1300 degrees. It is widely used in low temperature parts of various kilns.
Q:How to judge the quality of brick, clay brick, high alumina brick furnace from the appearance?
Mainly depends on the color and density of brick. Another black clay brick and brick with iron oxide formation and how much the size of bricks
Q:What role does silica play in refractories?
Low fractory refers to the alumina content between 10%~30%, SiO2 content is less than 85%, semisilica brick SiO2 = 65%,The SiO2 content of not less than 93%, refractory material to natural quartz rock as the main raw materials are called silica, silica brick, silica brick, quartz glass and special products. China's literature generally put this type of product is called "siliceous refractory products", which is the most important brick.

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