Hengrui Insulating Firebricks
Descriptions
Hengrui insulating firebricks is characterized by lightweight, highly efficient, energy-saving, which is developed by our company according to foreign advanced standard. Such products are made of high purity refractory clays, alumina and some organic filler. there are well-distributed tiny pores inside and the porosity is high. Thus, the heat energy can get restored, and the cost of fuel will be saved. The light-weight of IFB means that less heat storage, so cyclic operation can be accelerated for both of the heating and cooling are quick.
Hengrui insulating firebricks is the best lining and insulation materials for metallurgical, petrochemical, building materials, machinery and other industries of thermal equipment.the products is also used as insulating layer or work lining where there is no erosion caused by high temperature molten mass. The working temperature of Hengrui insulating firebricks ranging from 900℃ to 1600℃, and every client can buy the most economical products according to one’s actual demands.
Characteristics
Low thermal conductivity, low thermal capacity,low impurity.
Resistance to heat-attack, high strength and corrosion resistance.
Strong resistance to bending and pressure.
Application
Refractory of heat surface and back lining insulation for steel industry,petrochemical,ceramic industry, non-ferrous metal industry,etc.
Refractory lining for cement kilns, glass furnaces, hot blast furnace, trolley furnace, coke furnaces, boilers and other thermal equipment.
Pipeline, heating device and refining apparatus.
Technical Index
| Insulating Firebricks | HR23 | HR26 | HR28 | HR30 | HR32 | |
| Classification Temperature(℃) | 1300 | 1400 | 1500 | 1600 | 1700 | |
| Cold compressive strength(Mpa) | 1.2 | 1.6 | 2.1 | 2.1 | 3.5 | |
| Flexural strength（Mpa） | 1.0 | 1.5 | 1.8 | 2.0 | 2.1 | |
| Density（Kg/m3） | 800 | 800 | 900 | 1000 | 1200 | |
Thermal Conductivity (W/m.k) at℃ | 400 | 0.12 | 0.25 | 0.30 | 0.38 | 0.49 |
| 600 | 0.14 | 0.27 | 0.32 | 0.39 | 0.50 | |
| 800 | 0.17 | 0.30 | 0.34 | 0.40 | 0.50 | |
| 1000℃ | 0.19 | 0.33 | 0.36 | 0.41 | 0.53 | |
| 1200℃ | - | 0.35 | 0.38 | 0.42 | 0.56 | |
Chemical Composition（%） | Al2O3≥ | 42 | 55 | 67 | 74 | 77 |
| SiO2≥ | 45 | 42 | 32 | 22 | 43 | |
Fe2O3≤ | 0.8 | 0.7 | 0.6 | 0.5 | 0.4 | |
MgO≤ | 0.3 | 0.2 | 0.2 | 0.1 | 0.1 | |
| 1.1 | 1.3 | 0.9 | 0.9 | 0.9 | ||
The result is average value not guarantee value,fluctuate within the standard value, for more details about our products properties or technical support, please contact Hengrui Technical Department.