Refractory High Alumina Fire Brick for Thermal Insulating

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1 m.t.
Supply Capability:
2000 m.t./month

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Description of Refractory High Alumina Fire Brick

Refractory High Alumina Fire Brick for Thermal Insulating is a kind of insulation refractory product  taking bauxite as main raw material and including not less than 48% of AL2O3. Refractory High Alumina Fire Brick can be used in building insulation layer and parts not being affected by strong high-temperature molten material erosion and scoured. The surface temperature of the common Refractory High Alumina Fire Brick cannot exceed 1350° C when it directly contacts the flame.

 

Features of Refractory High Alumina Fire Brick

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

 

Specifications for Refractory High Alumina Fire Brick

 

Description of parameters

Refractory High Alumina Fire Brick

  LG- 1.0 

   LG-0.9 

  LG-0.8  

  LG-0.7 

  LG-0.6 

LG-0.5 

LG-0.4 

 

AL2O3 %

≥48

 

Fe2O3 %

≤2.0

 

Bulk   Density, g/cm3

≤1.0

≤0.9

≤0.8

≤0.7

≤0.6

≤0.5

≤0.4

 

Cold  Crushing Strength MPa

≥3.9

≥3.4

≥2.9

≥2.5

≥2.0

≥1.5

≥0.8

 

Test temp linear change within

2%on reheating 

1400

1400

1400

1350

1350

1250

1250

 

Thermal  conductivity  /W.(m.k)-1

≤0.5

≤0.45

≤0.35

≤0.35

≤0.30

≤0.25

≤0.20

 

Images of Refractory High Alumina Fire Brick

 

 

Applications of Refractory High Alumina Fire Brick

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 construction material in steel industry

6. For ladle

 

FAQ of Refractory High Alumina Fire Brick

1.    Can we visit your factory?

Sure, we warmly welcome you to visit our factory any time. Seeing is believing. 

2.    After an order is placed, when you will deliver?

10-30days.

3.    Does your company accept customization?

We have a strong technical force. Our production methods are unique in that in allows us to be responsive to the needs and specification of our customers.  We use a batch method of production, so each technician on the line is responsible for a specific area of expertise. at any point in our production, we can make changes and incorporate the feedback from our clients. We accept OEM service.

4.    How is your products quality?

We specialize in fire brick ,our products are superior in quality to any other brand available on the market. These fire brick are gaining popularity because of their fine quality, competitive prices, and our honest dealings.

 

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Q:What should be used as binder for making high alumina bricks?
Bond for making high alumina brick: soft clay has good plasticity, so the high alumina brick is usually made of soft clay as bond. However, the free Al2O3 free SiO2 and bauxite clinker clay in under 1200 degrees occurred two times of Mullization reaction, generate large volume expansion, silicon porosity, strength reduction. Therefore, the amount of clay powder in the ingredient should be no more than 5%.
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:High alumina brick 80 with which high aluminum cement?
Which kind should be chosen should be determined according to the conditions of use, life expectancy and cost control. By the way, the quality of masonry is also very influential.
Q:What refractory material does cupola lining use?
It's made of high quality refractory material: 1770 ~ 2000 centigrade.
Q:What is the difference between corundum and high alumina??
The main components of high alumina brick are high alumina bauxite, mullite and partial corundum sand.
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: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: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%.
Q:What are the specific raw materials for plastic pallets?
There are two kinds of raw materials for plastic pallets: one is polypropylene (PP) and the other is polyethylene (HDPE).Plastic pallets for logistics storage: pp+pe material, recycled material 10%;Plastic trays for food trays: food grade PP, PE, pc;Polyethylene (HDPE) has excellent impact resistance and cold resistance, and it can resist environmental stress cracking. Excellent chemical stability, good oil resistance. Water absorption and tiny, low permeability, organic vapor transmission rate is larger. Electrical insulation is good, in all frequency range, dielectric properties are extremely excellent.
Q:What is the difference between T3 refractory bricks or high alumina refractory bricks?
High aluminum refractory brick brick is all in one type of material classification, the material is AL2O3 high bauxite content above 55%, refractory brick by material into clay bricks, high aluminum brick brick brick corundum brick

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