High Alumina Insulating Fire Brick for Boiler/Furnace
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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: Is there a big difference between two high alumina brick and one high alumina brick?
- The difference between the two kinds of high alumina bricks is great. I perennial in Zhengzhou was responsible for the production and sale of colt refractories
- Q: In 2016, a few of the traditional refractory materials will be able to survive
- The other is in large enterprises and individual has the unique advantage of the small enterprises, with independent technology system, production equipment advanced, there are certain funds set up to deal with risk, timely reform, such enterprises compared to a few years ago the productivity and sales or have declined, but overall is still in the stage of production increased steadily.
- Q: Introduction of high alumina brick
- Made from alumina or other raw materials of high alumina content; formed and calcined. High thermal stability, fire resistance above 1770. Slag resistance is good, used for masonry steel smelting furnace, glass furnace, cement rotary furnace lining.
- Q: What is the price of the latest thermal insulation material?
- Also through online pre understand the products and prices, and now have large-scale manufacturers are generally opened on the cable business. Goods than three, manufacturers on-site inspection, confirm the quality of goods after considering cooperation.
- Q: What is the standard size of high alumina brick?
- The country has laid down a number of criteria for the use of refractory bricks to unify market demand.
- Q: Which is faster for heat transfer between corundum bricks and high alumina bricks?
- 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: What are the characteristics of high alumina bricks?
- A neutral refractory with an alumina content of more than 48%. Made from alumina or other raw materials of high alumina content; formed and calcined.
- Q: Which is better, the soft core or the hard core?
- The wire has two kinds of hard core and soft core, the hard core line is only one wire core, and the soft core line has a plurality of wire cores. For the same sectional area, the 7 core is more than the more than 30 core. There is a difference in use. Generally used for DC is the use of hard core line, because of its small line consumption; and for communication, we should use soft core line, but also in order to reduce its line consumption
- Q: Corundum, high alumina and fireclay refractory difference is what
- In fact, they are not consistent with raw materials, corundum refractories can use white corundum, white corundum, brown corundum corundum material, alumina content of these materials is higher than 90%, while the high aluminum refractory material is bauxite, alumina in 90 to less than 70, and clay raw materials the aluminum content is less than 70..
- Q: The difference between light high alumina brick and heavy aluminum brick
- Lightweight high alumina brick, also called high alumina insulation brick. Alumina content of 48% or more, mainly from mullite and glass phase or corundum composition of lightweight refractory. Volume density 0.4 - 1.35g/cm3. Porosity 66% - 73%, compressive strength 1 - 8MPa. Better thermal shock resistance. Usually, a high alumina clinker is added with a small amount of clay. After grinding, it is poured and shaped in the form of slurry by gas generation or foam method, and it is fired at 1300 - 1500 DEG C. Sometimes industrial alumina can be used instead of some bauxite clinker. Used for lining and insulation of masonry kilns, as well as for areas where there is no strong, high temperature molten material erosion and erosion. When contacting the flame directly, the surface contact temperature shall not be higher than 1350 degrees centigrade.
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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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