Loading Port:China main port
Payment Terms:TT OR LC
Min Order Qty:10 m.t.
Supply Capability:100000 m.t./month
| 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 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.
