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Chrome Corundum Brick

Bulk density: 2.9-3.35g/cm³

Alumina: 60-85%

good thermal stability

Custom shaped bricks

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Chrome corundum brick refer to corundum refractory bricks containing Cr2O3. At high temperature, Cr2O3 and Al2O3 form a continuous solid solution, so the high temperature performance of chrome corundum bricks is better than that of pure corundum bricks.

Chrome Corundum Brick Advantage

  • High temperature resistant
  • Good resistance to slag erosion
  • Excellent resistance to slag erosion

Chrome Corundum Brick Specification

ltem15 Chrome-Corundum Brick10 Chrome-Corundum Brick5 Chrome-Corundum BrickWear Resistance Skid RailZr-Cr-corundum Brick
ZrO2 (%)≥15
Apparent porosity(%)≤18≤18≤18≤16≤18
Bulk density (g/cm³)≥3.35≥3.3≥3.2≥3.2≥2.9
Cold crushing strength(MPa)≥120≥120≥120≥130≥90
Refractoriness under load,0.2MPa,0.6%≥1700≥1700≥1700≥1700≥1700

Chrome Corundum Brick Process

Chrome corundum brick is made of α-Al2O3 as raw material, adding appropriate amount of chromium oxide powder and chrome corundum clinker fine powder, forming and firing at high temperature. It can also be prepared by mud casting. α-Al2O3 powder and chromium oxide powder are mixed evenly. Thickeners are made by adding glue and organic binders. At the same time, part of the chrome corundum clinker is added, and the brick is made by grouting method.

Chrome Corundum Brick Application

chrome corundum bricks are mainly used as linings of slag oil gasification furnaces in petrochemical industry, tapping ports of heating furnaces, slide rails of rolling furnaces, tapping platforms, grooves and other industrial furnaces. It is used as the inner lining of glass kiln, brushed glass orifice cover brick, and used as the backing of molten iron pretreatment device, garbage incinerator, and coal-water slurry pressure gasifier.

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