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High alumina refractory fire brick for steel industry

The bricks to be packed by fumigation wooden pallets.
  • BDL-75
  • Dezhen
  • 690220

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.

Al2O%                ≥807580758385
Fe2O3%                ≤
Apparent porosity  %     ≤19(21)19(21)18(20)18(20)17(19)17(19)
Bulk density  g/cm³      ≥
Cold crushing strength Mpa ≥706060557080
Refractoriness under load ºC154015201550153015501560
P.L.C %±0.2±0.4±0.2±0.4±0.2±0.2

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