High Alumina Insulating Fire Brick for Boiler/Furnace
- Ref Price:
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- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 100000 m.t./month
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Quick Details
| Place of Origin: | Henan, China (Mainland) | Shape: | Brick | Material: | Mullite |
| SiO2 Content (%): | 0 | Al2O3 Content (%): | 52-72% | MgO Content (%): | 0 |
| CaO Content (%): | 0 | Refractoriness (Degree): | 1770°< Refractoriness< 2000° | CrO Content (%): | 0 |
| SiC Content (%): | 0 | Brand Name: | Lite | Size: | 230*114*65mm |
| Fe2O3 /%: | 0.8-1.0 | Bulk Density g/cm3: | 1.0~1.2 | Cold crushing strength/ Mpa: | 2.5~5.0 |
| Reheating Linear Change(%)°C X 12H: | ≤1 (1350℃-1650°C) | Thermal Conductivity(W/m.k)(350°C): | 0.32-0.44 | Weight of brick: | 1.0-2.0kg |
| Working temperature: | less than 1600°C | Sample: | free |
Packaging & Delivery
| Packaging Details: | 1.On wooden pallets with plastic cover 2.According to customer's demands |
| Delivery Detail: | Within 30 days |
Brick Shape and Mullite Material high temperature light weight high alumina insulating fire brick for boiler/furnace
Product Description
1.Description
High alumina insulating fire brick, using high pure mullite as raw material, is made by adding alumina powder according to different type and then sintering in high temperature. The Al2O3 content is 50-85%.
2.Feature
1.Low levels of iron and other impurities
2.High mechanical intensity
3.High refractoriness, can contact with the flame directly, suitable for various atmosphere
4.High porosity, low volume density, low thermal conductivity
5.Good heat insulating performance and energy-efficient
6.Low creep rare at high temperature,good thermal shock stability
7.Chemical corrosion resistance
8.Long service life
3.Technical Data
Item | High alumina insulating fire brick | |||||
1.0 | 1.0 | 1.0 | 1.0 | 1.2 | 1.2 | |
Al2O3/% | ≥52 | ≥55 | ≥60 | ≥65 | ≥65 | ≥72 |
Fe2O3/% | ≤1.0 | ≤0.8 | ≤0.8 | ≤0.8 | ≤0.8 | ≤0.8 |
Bulk Density(g/cm3) | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.2 | ≤1.2 |
Cold Crushing Strength Mpa | ≥3.5 | ≥3.5 | ≥4.0 | ≥3.0 | ≥5.0 | ≥2.5 |
Reheating Linear Change (%)°C X 12H | 1350℃ ≤1 | 1400℃ ≤1 | 1500℃ ≤1 | 1550℃ ≤1 | 1550℃ ≤1 | 1650℃ ≤1 |
Thermal Conductivity(W/m.k)(350°C) |
0.33 |
0.33 |
0.33 |
0.32 |
0.35 |
0.44 |
4.Application
High alumina insulating fire brick 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.
- Q: What are the grades of high alumina bricks?
- High alumina brick according to the aluminum content is generally divided into: super high alumina brick, a high aluminum brick, two high alumina brick, three high alumina brick
- Q: The difference between aluminium refractory and magnesia refractory
- Magnesia refractory belongs to alkaline refractory materials refers to refractory products such as magnesia magnesia brick magnesium iron spinel magnesium aluminum spinel magnesia ramming materials and other products of raw materials is the main crystal phase is periclase magnesia products
- Q: Aluminum content 38, silicon content 55 What refractory bricks?
- Hello Only on behalf of the Zhengzhou colt as refractory product index your answer to this question is not entirely separate from the chemical index of aluminum content, silicon content and judgment, personally think that three types of refractory bricks may respectively is: Two: semisilica brick high alumina brick
- Q: How to reduce porosity of high alumina brick
- High alumina brick used as refractory products in refractory material, has a great application in masonry kilns, insiders pointed out that the quality of high alumina brick general porosity and it has a great relationship! So, how to reduce the porosity of high alumina brick rate is very important!
- Q: What kinds of minerals are there in the five major categories of ore crystal chemistry?
- Halide. A few species, about 120 species, accounting for only 0.1% of the earth's crust. Most of them formed in the surface conditions, forming a salt mineral, containing less pigment ions, light color, low hardness, generally less than 3.5. Common mineral halite (NaCl), potassium (KCl), fluorite (CaF2) etc..
- Q: How much is one ton / ton of high alumina refractory brick?
- The market price of about super high aluminium brick price at 3000 yuan / ton, a high aluminum brick at around 2500 yuan / ton, two high aluminum bricks at around 2100 yuan / ton three grade high alumina bricks at around 1850 yuan / ton for reference, choose to buy the area is not the same as the prices are not the same.
- Q: What is spalling resistant high alumina brick?
- Using bauxite as main raw materials, the introduction of a small amount of ZrO2 (ZrO2 is due to phase transition, between monoclinic and tetragonal type can improve the thermal stability of the products), adding a certain amount of binder and additives, the particle size distribution control mud, forming and sintering of refractory products produced, called anti stripping high alumina brick.
- 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: What causes breakage of refractory bricks?
- There are many factors that lead to the damage of refractory brick, can be divided into: the chemical loss (e.g. salt penetration, redox phenomenon), heat loss (burning, thermal shock), mechanical loss (kiln deformation, thrust, brick masonry quality etc.).
- Q: Use of high alumina refractory bricks?
- Because of the high Al2O3 high aluminum products, low impurity content, the formation of fusible vitreous body less so than the clay brick high load softening temperature, but because mullite crystallization has not formed the network organization, so the load softening temperature is not high silica brick.
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High Alumina Insulating Fire Brick for Boiler/Furnace
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 100000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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