Home > Products > Insulation Firebrick > High Purity Grade 28 Insulating Firebrick
High Purity Grade 28 Insulating Firebrick
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Product Details
| Place of Origin | Shandong, China | Shape | Brick | |
| Material | Mullite | SiO2 Content (%) | 30 | |
| Al2O3 Content (%) | 67 | |||
| Model Number | Grade28 | Brand Name | JIUCHEN |
Product Description
High Purity Grade 28 Insulating Firebrick gains typical advantages including low thermal conductivity,
fine thermalshock 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 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
Application of insulating firebricks:
Technical Data:
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 | |
If u need our products, pls contact with us.
Contact Us
- Zibo JC Eco-Tech Co., Ltd.
- Contact nameSelena Guo Chat Now
- Phone0086-533-3593322
- AddressNo.99,Beiyuan Industrial Park,Liuquan Road,Zibo City,Shandong,China, Zibo, Shandong
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