Corundum mullite refractory castable for sale is the refractory castable, of which Al2O3 is more than 90%. It is made of corundum, dispersant, coagulant, and stainless steel fiber according to a certain formula. It is featured with high temperature strength, wear resistance, high thermal conductivity, good thermal shock resistance, and air tightness. In addition, it cures fast with high strength at the early stage. Corundum mullite castable is widely used in circulating fluidized bed boiler, metallurgy, oil chemical, thermal power, and other areas of the industry.
Corundum Mullite Refractory Castable Specifications
|Chemical composition (%) ≥||Al2O3+SiO||90||80||70|
|Bulk density dried (kg/cm3) ≥||110℃×24h||3000||2900||2750|
|Cold crushing strength Mpa≥||110℃×24h||150||100||100|
|Cold modules of rupture Mpa≥||110℃×24h||15||12||10|
|Permanent linear change (%)||1100℃×3h||±0.3||±0.3||±0.3|
|Maximum service temp (℃)||1750||1600||1600|
|Water addition (%)||4.5-5.0||4.5-5.0||4.5-5.0|
|application||Out, burner||Out, burner||Out, burner|
Buy Corundum Mullite Refractory Castable
People buy corundum refractory castable for the special component. It is a kind of refractory castable that takes corundum as aggregate and power, plus boning agent. It is better than high aluminum refractory castable and mullite refractory castable, such as higher mechanical strength and resistance to abrasion. It has the advantages of corundum castable and mullite castable.
The main raw materials of corundum mullite castable is lightweight aluminium oxide aggregate, high quality pure natural mullite ore, and calcium aluminate cement as the bonding agent. It is made through high temperature burning by the advanced industrial furnace.
Corundum mullite flexural strength and compressive strength increase first and decrease then with the increase of heat treatment temperature. And when alumina micro power content is 5%, the flexural strength reaches to the top.
Components: lightweight aluminium oxide aggregate
high quality pure natural mullite ore
calcium aluminate cement
Properties: high mechanical strength, wear resistance
light weight, good thermal shock resistance
and air tightness, etc.
Corundum Mullite Refractory Castable Uses
Corundum mullite refractory castable is featured with uniform expansion, excellent thermal shock resistance, high temperature volume stability, high temperature strength, high refractoriness under load, low high-temperature creep rate, high crushing strength, low linear dimensional change rate, high hardness, good resistance to chemical corrosion, spalling and wear resistance. In addition, such product has advantages of anti-scouring, good chemical resistance performance.
Because of such characters, it is durable in use and is widely applied in different industrial kiln, high temperature furnace and other key parts of high temperature, such as:
- Boiler, blast furnace, hot blast stove, heating furnace;
- Ceramic tunnel kiln, cement kiln, coal burner;
- Furnace door, feed opening, steel furnaces, iron making furnaces;
- Combustion chamber, inclined flue;
- Large power station boiler, glass kiln, etc.
Corundum Mullite Refractory Castable Price
Corundum mullite refractory castable price from RS is lower than the other manufacturers, for the advantages of abundant and high quality raw materials and convenient transportation. As a professional supplier, RS provides not only the superior products, but also the best services about the delivery and installation, etc. So it has customers from all over the world.
RS is looking forward to your cooperative relationship.Leave your requirements about the refractories you need. We will reply you within 24 hours. :