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 brick for steel making

The product features: 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 erosion resistance.
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Product Description

High alumina brick for steel making

Performance:

excellent high temperature physical performance

chemical erosion resistance

itemsDL-80DL-75BDL-80BDL-75BDL-83BDL-85
Al2O3 %                ≥807580758385
Fe2O3%                ≤1.51.51.51.51.51.5
Apparent porosity  %     ≤19(21)19(21)18(20)18(20)17(19)17(19)
Bulk density  g/cm³      ≥2.72.62.82.72.852.9
Cold crushing strength Mpa ≥706060557080
Refractoriness under load ºC154015201550153015501560
P.L.C %±0.2±0.4±0.2±0.4±0.2±0.2

Aluminum silicate refractory bricks with aluminum oxide (Al2O3) content higher than 48%.

High alumina refractory brick is formed and calcined from bauxite or other raw materials with high alumina content. High thermal stability, refractoriness above 1770℃. It has good slag resistance and is used for the lining of steel-making electric furnaces, glass melting furnaces, cement rotary furnaces, etc.

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.

Our products are exported to Japan, South Korea, UK, Germany and many other countries.


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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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