Refractory Bricks,High Alumina Bricks 2015

Ref Price:
$125.00 - 165.00 / m.t.
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Payment Terms:
TT or LC
Min Order Qty:
10 m.t.
Supply Capability:
1000 m.t./month

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Product Description:

Quick Details for Refractory Bricks,High Alumina Bricks

Place of Origin:

 China (Mainland)




Alumina Block

Al2O3 Content (%):


Refractoriness (Degree):

1770°< Refractoriness< 2000°

Brand Name:

Packaging & Delivery

Packaging Details:Fumigated wooden pallet, using paper or non-woven fabrics between layers separated,plastic shrink film protected outside.finaly using straps. the size of wooden pallet is 95x95cm,95x100cm or as your requirements.
Delivery Detail:10-30working days after receiving deposit

Specifications for Refractory Bricks,High Alumina Bricks

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
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
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 under load KD>1520
Permanent linear change onreheating
1500*2h:+0.1; -0.4 
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 
Apparent Porosity(%)<23
Cold crushing strength (Mpa)>49

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

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

 Process flowdiagram:



 Refractory Bricks,High Alumina Bricks   2015


 Order processing:


After the contract is signed, the relevant responsible person tracked production progress, product quality and product packing aperiodically. During the term of contract sent on time with quantity and quality guaranteed.




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Q:How to make refractory bricks and boiler wall adhesion more firm?
Suggest that you use fire brick to increase the length of brick or pull the amount of turn, and use high temperature mortar masonry
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 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 are the common thermal insulation materials for thermal conductivity?
Aerogels are known to be the lightest solid materials in the world. It is made of nanometer silica aerogel as main material and is compounded by special process. The utility model has the advantages of high temperature resistance, low thermal conductivity, small density, high strength, green environment protection, waterproof and non inflammable performance. At the same time, with excellent sound insulation and shock absorption performance, it is now widely used in metallurgy, chemical, national defense, aerospace and other fields, is an indispensable high-performance insulation materials.
Q:How to reduce the harm caused by two times mullite in high alumina refractory material
Prolong the sintering time and adjust the aluminum content of the high alumina brick.
Q:Corundum, high alumina and fireclay refractory difference is what
Corundum is unknown. The high alumina brick has higher aluminum content than the clay brick, and the temperature resistance is higher than 300 degrees. It is more durable and durable than the clay brick. The production process of high alumina brick is better than that of clay brick. For example, the weight of good clay brick is 3.7kg, and that of high alumina is 4.2kg. Good density. But the price of high aluminum is too high: ordinary clay brick (standard brick example) in 1.1--2.5 yuan / block, high aluminum to 4.5 yuan / block, or even more expensive. The extra high aluminum has reached 5000 tons. Say straight white point is: under the same conditions, clay brick for a period of one year, then the high aluminum for more than three years.
Q:The difference between light high alumina brick and heavy aluminum brick
Lightweight high alumina bricks, commonly called insulating refractory bricks, also known as insulating refractory bricks. First of all, literally, lightweight aluminum bricks and heavy aluminum bricks are very different in weight. Lightweight high alumina bricks, also called insulated high alumina bricks, are designed for insulation and heat preservation. In normal use, the utility model is not directly contacted with the furnace temperature, and is a refractory brick product which is close to the furnace wall and has the function of heat insulation and heat preservation.
Q:Which thermal shock stability of clay brick and high alumina brick is good?
High alumina brick is made of superfine alumina, fused corundum and fused mullite as main refractory materials.
Q:Introduction of high alumina brick
Three alumina silicate refractory product with a content of two Al2O3 (48%).
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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