Kaiyuan Refractories

A professional company produces and sales refractory materials for industry of cement, iron & steel ,non- ferrous metal and glass etc.
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High Alumina Refractory Brick

The brick is made from sintered special grade clay, pressed by high pressure and sintered at high temperature, with excellent spalling resistance, alkali,sodium,sulfur,chlorine and alkalic salt corrosion. Low thermal conductivity, a better and ideal choice for steel industry.
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Product Description

The high alumina brick feature:

high alumina bricks for steel making is made from special grade of bauxite as main raw material, added with little amount of white fused alumina and a alumina powder, shaped by high pressure and sintered at high temperature. The main mineral constituent includes mullite and corundum, with excellent high temperature physical performance and chemical resistance.

Features:

High alumina brick has the advantages of small high temperature creep, strong corrosion resistance, good thermal shock stability, etc. It is suitable for large and medium-sized hot blast stoves.

Application:

High alumina bricks are mainly used for masonry blast furnace, hot blast stove, electric furnace roof, blast furnace, rotary kiln lining. In addition, high alumina bricks are also widely used as open hearth regenerative checker bricks, plugs for pouring systems, nozzle bricks, etc.

ItemsHigh alumina brick
Al2O3,% ≥55657082
Fe2O3,%≤2222
Refractoriness,SK36373840
Refractoriness,ºC1790182018501920
Refractiriness under load,0.2Mpa1450148015301600
Apparent porosity,% ≤20-2320-2320-2218-20
Bulk density,g/cm32.25-2.42.3-2.52.4-2.62.5-2.7
Cold crushing strength,Mpa ≥45506070


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Zhengzhou Kaiyuan Refractories Co.,Ltd

 Plant add: Tancunwan village, Niudian town, Xinmi city, Henan, China
 +86-13592427095 
  sales@kaiyuanref.com    
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