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Related Products
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High Density Insulating Firebrick Grade28NegotiableMOQ: 1000 Kilograms -
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Grade 26 Mullite Insulating Fire BricksNegotiableMOQ: 100 Pieces
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JM28 Grade Insulating Firebrick Refractory StoneNegotiableMOQ: 100 Pieces
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Grade 30 Kiln Insulating Fire BricksNegotiableMOQ: 100 Pieces
Insulating firebrick
Insulating firebrick gains typical advantages including low thermal conductivity,fine thermal shock resistance,low heatcontainment 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 highgrade 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
Description |
Grade 23 |
Grade 26 |
Grade 28 |
Grade 30 |
|
Classification Temperature |
1300C/2372F |
1400C/2552F |
1500C/2732F |
1550C/2822F |
|
Density(kg/m3) |
600 |
800 |
900 |
1000 |
|
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 (%)x24hrs |
≤0.6 |
≤0.6 |
≤0.8 |
≤0.9 |
|
Thermal Expansion (%)1000C |
0.5 |
0.52 |
0.52 |
0.53 |
|
Thermal Conductivity (W/m.k) |
350C |
0.18 |
0.25 |
0.33 |
0.38 |
400C |
0.20 |
0.29 |
0.35 |
0.40 |
|
600C |
0.24 |
0.32 |
0.37 |
0.42 |
|
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 |
|
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