Loading Port:Tianjin
Payment Terms:TT OR LC
Min Order Qty:1 m.t.
Supply Capability:20000 m.t./month
Description of Insulating Fire Brick
Insulating Fire Brick 65% Al2O3 min High Alumina is a kind of insulation material adopting organic matter as ignition loss substance in order to increase the porosity of refractory, which has such advantages as high porosity, small volume density, good insulation effect, high mechanical intensity, small thermal conductivity and long service life. For various industrial kilns & furnaces, Insulating Fire Brick is a kind of essential refractory for energy saving and temperature preservation.
This series of High Alumina Insulating Fire Brick are made of selected high alumina bauxite, kaolin caly, hollow microsphere as the mian material. By shaping at high pressure and sintering at high temperature.
Features of Insulating Fire Brick
1. Lower content of iron, alkaline and impurities, good high temperature properties.
2. Homogeneous structure, light weight, energy saving because lower heat storage in the furnace during cooling cycles.
3. High strength, good thermal shock resistance under high temperature.
4. Precise sizes due to grinding and shaping after firing, which meets the requirement of construction.
Specifications for Insulating Fire Brick
SSW-23 | SSW-25 | SSW-26 | SSW-28 | SSW-30 | SSW-32 | ||
ASTM C155-97 °C Classification Temperature °F | 1260 2300 | 1350 2500 | 1430 2600 | 1540 2600 | 1650 3000 | 1760 3200 | |
ASTM C134-95 g/cm³ Bulk Density ib/ft³ | 0.60 37 | 0.80 50 | 0.80 50 | 0.90 56 | 1.03 64 | 1.25 78 | |
ASTM C133-97 Mpa Cold Crushing Strength ib/in² | 1.2 170 | 2.0 284 | 2.0 284 | 2.6 370 | 2.8 398 | 3.4 484 | |
ASTM C133-97 Mpa Modulus of rupture ib/in² | 0.9 128 | 1.2 170 | 1.5 218 | 1.6 232 | 1.7 247 | 2.0 290 | |
ASTM C210-95 % Permanent Liner Change °C*hrs | 0 1230*24 | -0.5 1350*24 | -0.5 1400*24 | -0.8 1510*24 | -0.9 1620*24 | -0.9 1730*24 | |
ASTM C182-88 Thermal Conductivity (W/m.k) | 400°C | 0.17 | 0.24 | 0.24 | 0.30 | 0.40 | 0.49 |
600°C | 0.19 | 0.28 | 0.27 | 0.32 | 0.42 | 0.50 | |
800°C | 0.22 | 0.32 | 0.30 | 0.35 | 0.44 | 0.51 | |
1000°C | 0.25 | 0.37 | 0.32 | 0.38 | 0.45 | 0.53 | |
1200°C | --- | --- | 0.35 | 0.39 | 0.47 | 0.55 | |
Chemical Analysis of Insulating Fire Brick | |||||||
Al2O3 % | 45 | 50 | 55 | 65 | 72 | 76 | |
Fe2O3 % | 0.9 | 0.8 | 0.8 | 0.5 | 0.4 | 0.3 | |
SiO2 % | 50 | 45 | 42 | 32 | 26 | 22 | |
CaO+MgO % | 0.7 | 0.6 | 0.3 | 0.2 | 0.3 | 0.2 | |
K2O+Na2O % | 1.3 | 1.0 | 1.0 | 0.8 | 0.2 | 0.1 | |
Images of Insulating Fire Brick
Applications of Insulating 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 Insulating Fire Brick
1. Which products do you have?
We have all kinds of refractory brick, castable, mortar, cement, ceramic fiber products, etc.
Or you could browse our products to choose what you need.
2. Can you give me a general idea of the specification and technical data of your products?
CNBM offer a range of refractory and insulation products. We provide refractory bricks, monolithic refractories as well as ceramic fiber products. And On your given shapes, drawings or description, we are producing refractories with all sizes and shapes, resistant to temperature from 800 °C till 1800 °C, using various machines and equipments for cutting, grinding, drilling, polishing, shaping processes.
Every refractory product by CNBM is of superior quality. Lesser refractory products can not approach. CNBM utilizes proprietary testing methods, testing for chemical content, density, apparent porosity, cold crush strength and modulus of rapture. With stringent quality control, you can count on CNBM products to exceed refractory industry standards and your expectations.
3. Can you give me a brief introduction of the application of your products?
We are mainly specializing in the refractory materials in iron and steel, cement, glass, ceramics, petrochemical, electric power Industry, etc.
4. If I need your offer, what information do you need?
In order to choose suitable products, it will be appreciated to provide us the information, such us specification, technical data, order quantity, products application etc.
If any question, please contact us freely.
