Alumina silica fire brick low porosity refractory clay fire bricks for furnace

Short Description:

Clay refractory bricks is a kind of refractory fire clay brick, the bauxite and flint clay as main raw material with add the sillimanite and the andalusite, the binder according to the proportion, then forming the low porosity clay products after mixing, molding, and drying.


Product Detail

Product Tags

Alumina silica fire brick low porosity refractory clay fire bricks for furnace6
Alumina silica fire brick low porosity refractory clay fire bricks for furnace7
Color earthy yellow
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.
Work Temperature 1400℃
Material clay,kaolin,flint clay
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

Item Clay brick
K30 K32 K34 K35
Al2O3,% ≥ 30 32 38 45
Fe2O3,%≤ 2.5 2.5 2 2
Refractoriness,SK 30 32 34 35
Refractoriness,℃ 1670 1710 1750 1770
Softening Temperature under load,0.2Mpa 1250 1350 1370 1420
Apparent Porosity,% ≤ 22-26 20-24 20-22 18-20
Bulk density,g/cm3 1.9-2.0 1.95-2.1 2.1-2.2 2.15-2.22
Cold crushing strength,Mpa ≥ 20 25 30 40

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