Alumina silica fire brick low porosity refractory clay fire bricks for furnace
|Size||230X114x65/75mm,230×150×75mm,230×150/135×75mm,ect.(According to customer demand processing and production)|
|Shape||arch bricks,Straight Brick,special-shaped brick,checher brick,trapezoidal brick,Bricks with taper,arch brick,skew brick,ect.|
|Field of Application||industry Furnace|
|Service||clay refractory bricks design,Production,Construction|
Clay bricks of over SK30 contain over 30% Alumina and are made from raw materials of unusually high degree of purity of Bauxite and refractory clay. For serve under severe conditions,Rewell clay Alumina bricks have excellent mechanical strength, good resistance to thermal spalling, and are highly resistant to chemical attack by vilatile alkaies and some slag. We manufacture and design alumina bricks to meet the requirements of a great variety of service conditions thorough quality control.
Clay fire brick is one of the most common fire bricks. Its Al2O3 content is between 30% and 48%. The clay fired bricks are made of refractory clay or kaolin and clay clinker combined with clay, which is formed by semi-dry or plastic method and roasted at the temperature of 1250-1420.
Characteristics of clay refractory bricks:
1. Low porosity and strong density.
2. Good resistance to permeability and good corrosion resistance.
3. High temperature strength, long service life.
Clay refractory bricks index
|Softening Temperature under load,0.2Mpa||1250||1350||1370||1420|
|Apparent Porosity,% ≤||22-26||20-24||20-22||18-20|
|Cold crushing strength,Mpa ≥||20||25||30||40|