$High Alumina Silica Refractory Brick for Coke Oven with Good Quality System 1$
$High Alumina Silica Refractory Brick for Coke Oven with Good Quality System 2$
$High Alumina Silica Refractory Brick for Coke Oven with Good Quality System 3$
$High Alumina Silica Refractory Brick for Coke Oven with Good Quality System 4$

$High Alumina Silica Refractory Brick for Coke Oven with Good Quality$

$High Alumina Silica Refractory Brick for Coke Oven with Good Quality System 1$

$High Alumina Silica Refractory Brick for Coke Oven with Good Quality System 2$

$High Alumina Silica Refractory Brick for Coke Oven with Good Quality System 3$

$High Alumina Silica Refractory Brick for Coke Oven with Good Quality System 4$

High Alumina Silica Refractory Brick for Coke Oven with Good Quality

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 3000 pc

Supply Capability:: 50000 pc/month

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Silica Refractory Rrick for Coke Oven with Good Quality

Product Description

Refractory brick fireclay brick

Refractory fire brick is made of high grade bauxite through high temperature calcinations.

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 Application

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 Kiln car building

6 For ladle

$Silica Refractory Rrick for Coke Oven with Good Quality$

Item	Mark
Item	KN	KD	KS
SiO2	≥94.5	≥95
Fe2O3	≤1.0	≤1.0
CaO	≤3.0	≤3.0
Al2O3	≤2.0	≤1.5
K2O+Na2O	≤0.35	≤0.35
Refractoriness		≥1710
Apparent porosity	≤24.5	≤22	≤22
Cold crushing strength	≥28	≥35	≥45
Refractoriness under load 02Mpa T06℃	≥1640	≥1650
Creep (0.2 Mpa)1450℃ Z5-25 % Z25 %	≤0.12 ≤0.35
Permanent line change 1500℃*2h		-0.2~+0.2
Residual quartz		≤1.5
Expansion rate(1000℃)		≤1.25
Bulk density		1.8(checker) 1.85(wall)
True density		≤2.34

$Silica Refractory Rrick for Coke Oven with Good Quality$

Production & Quality

1.Production Process

Crushing→Mixing→Shaping→Drying→Firing→Inspection→Packing shipment

2.Quality Control

a.According to the chemical content,raw materials are classified into different levels to ensure quality of brick first.

b.During the production,every brick will be weighed twice strictly to reduce the error of weight .

c.Before delivery, the inspectors will inspect the size,appearance,physical and chemical properties of brick again in factory.

F&A

Q1.Are you a manufacture or trader?

A:To be honest we are a trader,but we have stable cooperation factories.And we can supply good pre-sale service, after-sales service.

Q2.Can we visit your company?

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

Q3. Do you provide samples?

Yes, samples are available.

Q4. Do you accept OEM?

Yes, we can do OEM.

Q5.What's the MOQ of trial order?

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

Q6.What are the payment terms?

Usually T/T,but L/C,Western Union etc are available for us.

Q7. How long is delivery time?

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

Q8.How are your products’ quality?

The products will be strictly inspected before shipment, so the quality could be guaranteed.

Q9.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.

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.

Q11.How about your company's certification?

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

Q: What are the grades of high alumina bricks?: According to the size of high aluminum brick is divided into: standard brick, special-shaped brick.

Q: What is the standard classification of high alumina bricks and high alumina bricks?: Refractory brick is non-metallic materials can be classified according to a kind of inorganic material, high aluminum brick, clay brick, magnesia brick, corundum brick, mullite bricks, silicon carbide materials such as brick, high alumina brick is used as a relatively wide range of products in accordance with the refractory brick high alumina refractory materials by high aluminum brick is generally divided into Al2O3 content three: I - II - >75% Al2O3 content; the content of Al2O3 is 60 ~ 75%; III - Al2O3 content from 48 to 60%.

Q: Density of high alumina bricks: High alumina brick by aluminum content is divided into four grades, three grade high alumina bricks content of not less than fifty-five percent, two grade high alumina bricks content of not less than 65, a high aluminum brick content of not less than 75, super high aluminium brick content above 85. As for the high aluminum brick shape, in addition to the standard high alumina brick, high alumina brick and general type, also called special high alumina brick, if the shape is very irregular it is usually called the specific type of high alumina brick, in short, to customized according to the specific use of kiln.

Q: Which is better, the soft core or the hard core?: When the current through the wire, it will produce a magnetic field in the vertical plane space of the wire, if there is a current two wire close by in the same direction, because they produce a magnetic field in the direction is opposite, it will produce a repulsive force is due to the magnetic field force. They will mutually inhibit current intensity of the other party, caused by the reduction of current in the wire, this inhibition of each current intensity, we called wire inductance. When the AC current line frequency is high, the inductance is stronger.

Q: How much is one ton / ton of high alumina refractory brick?: The price of high alumina refractory bricks is not equal, according to the quality index of GB2988-2012

Q: Corundum, high alumina and fireclay refractory difference is what: They differ in that the alumina content is different, and the content is in order: corundum > high alumina > clay.

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: 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?: The expansion of high alumina brick is not only related to temperature, but also related to its material composition. The refractory temperature of high alumina brick is above 1770 centigrade. The temperature of 800 DEG C has little influence on the expansion of high alumina brick.

Q: How are the grades of high alumina bricks differentiated?: In China, the content of Al2O3 in high alumina brick is usually divided into three categories: I, etc. - Al2O3 content > 75%; II, etc. - Al2O3 content is 60 to 75%; III and so on - Al2O3 content is 48 ~ 60%.

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