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Insulating Firebrick
Insulating Firebrick
Descriptions
Zhongzi insulating firebrick gains typical advantages including low thermal conductivity, fine thermal shock resistance, low heat containment and low iron content ,meanwhile, the outstanding mechanical flexibility, coupled with high insulating efficiency expands the extensive applications of IFB in a variety of industrial markets. Our insulating firebrick is manufactured from high-grade refractory powder and materials in good purity. During the
process of production, organic and multiple filling materials are injected according to the required proportion, the brick is compressed in vacuum and sintered under high temperature.
Features
Low thermal conductivity
High purity and low iron content
Good thermal resistance with direct access to fire
Superior thermal shock resistance
Accurate dimension and easy cutting
Typical Applications
Cracking Furnace
Conversion Furnace
Heating equipment
Refining equipment
Reproduction equipment
Hot Blast Stove
Typical Parameters
|
Description |
Grade 23 |
Grade 26 |
Grade 28 |
Grade 30 |
|
Chemical Composition (%) |
||||
|
Al2O3 |
42 |
56 |
67 |
73 |
|
SiO2 |
55 |
41 |
30 |
24 |
|
Fe2O3 |
≤1 |
≤0.8 |
≤0.7 |
≤0.7 |
|
K2O + Na2O |
1.1 |
1.7 |
1.7 |
1.7 |
|
Physical Properties |
||||
|
Density (kg/m3) |
600 |
800 |
900 |
1000 |
|
Classification Temperature (°C ) |
1300 |
1400 |
1500 |
1550 |
|
Cold Crushing Strength (MPa) |
1.2 |
1.8 |
2.5 |
3.3 |
|
Modulus of Rupture (MPa) |
1.0 |
1.7 |
2.3 |
3.1 |
|
Permanent Linear Change(%)x 24hrs |
≤0.6 |
≤0.6 |
≤0.8 |
≤0.9 |
|
Thermal Expansion(%)1000°C |
0.5 |
0.52 |
0.52 |
0.53 |
|
Thermal Conductivity (W/m.k) |
||||
|
350°C |
0.18 |
0.25 |
0.33 |
0.38 |
|
400 °C |
0.20 |
0.29 |
0.35 |
0.40 |
|
600 °C |
0.24 |
0.32 |
0.37 |
0.42 |
The data shown are average results of tests under standard procedures and are subject to variation. Results should not be used for specification purposes or creating any contractual obligation. For more information on the safety application or materials, please refer to the work practices and material safety data sheet.
Advantages of our bricks
ZHONGZI INSULATING FIREBRICK
Correct size and cut
Pure raw materials
Standard open porosity
High strength
Low shot content
"XX"BRAND INSULATING FIREBRICK
Coarse appearance and color
Bad cutting and wrong dimension
Mixed with poor raw materials
Fragile and low C.C.S.
Irregular porosity and high impurities
The above comparision image shows our consistent quality and advantages.We supply the bricks under strict control on quality, which ranges from the inspection on raw materials, the supervision on the production technique and process, the check on the delivered materials before dispatch. Our bricks are proved to be a state-of-art thermal insulating materials in the industrial furnaces and kilns due to its features such as low thermal conductivity, the low iron content and good strength, as a qualified member of the family of refractories in LUYANG company, the applications and engineering together with our refractory ceramic fibers are obtaining increasing and unparalleled popularity.
Dimensions
Standard dimensions:
230x114x64mm
230x114x76mm
Customized production for bricks with special dimension is available
Shaped bricks such as arch or key can be produced according to the drawings
Packages
Packed in carton box:
Bricks are paved inside the cartons and normally, 8 or 10 pcs bricks per carton box, this way of package is suitable for the procurement in small quantities.
Packed in wooden pallet:
Bricks are paved onto the pallet in a row, each layer shall be separated and the wooden case is wrapped by film, the cardboard around the four sides of pallet will protect bricks in the transportation.
230x114x64mm, 668pcs/pallet
230x114x76mm, 560pcs/pallet