This kind of brick is we developed the other type light weight refractory product according to the market need , it has advantages of high temperature resistance ,low thermal conductivity ,low iron content ,high compression strength and good thermal stability which could be used directly on the heat insulation separator and the heat insulation surface of back-end furnace wall .
high alumina low iron thermal insulation brick
Technical performance index:
|Index||Al2〇3||Fe203||Volume density g/cm3 ≤||Withstand pressure&strong pressure under room temperature||Reheating linear change rate||Thermal conductivity W/m.k||0.2 refractoriness-under-load℃≥|
|(%)≥||(%)≤||MPa ≥||°C x H ≤2||200°C||400°C||800°C|
|DFD-0.8||60||1.0||0.8||5.0||1400 x 12||0.24||0.27||0.32||1400°C|
|DFD-1.0||60||1.0||1.0||6.5||1400 x 12||0.28||0.3||0.35||1400°C|
|DFD-1.2||65||1.0||1.2||8.0||1400 x 12||0.38||0.4||0.44||1450°C|
Remark: We could adjust technical performance index according to client’s working condition.
- 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
High strength wear-resisting refractory bricks are using corundum ,carborundum and high alumina as main raw materials ,it is formed by high temperature sintering through matrix strengthening and pellet’s combination tightly and mix with compound binder .it has characteristics of high strength compression 、high abrasion resistance , steady volume and good thermal shock performance. …
Alumina bricks are made from bauxite of super quality, bonding chamotte and additives. The main Al203 content is 48%-99%. The advantages of high alumina bricks are high refractoriness, anti alkaline/acid erosions, good strength under high temperature and good thermal shock resistance. …
1.FEDEX/DHL/UPS/TNT for samples.
2.By Sea for batch goods.
3.Customers specifying freight forwarders or negotiable shipping methods!
4.Delivery Time:3 days for common shape samples;15 days for special shape samples.Within 30 days for batch goods.
1.Payment: T/T, Western Union,LC; Usually 30% paid by T/T as deposit,the rest 70% balance paid by T/T before delivery .
2.MOQ: Usually 1Tons,Customers can order certain PCS for special brick.
3.Quality Warranty: 3years.
1.On wooden pallets with plastic cover.
2.According to customer’s requirements.