Composite Brown Corundum Bricks
zhengzhoujianxin@126.com
- Description
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The composite brown corundum brick is mainly made of high quality brown corundum, silicon carbide, fused mullite, silicon metal, composite ultrafine powder and special admixtures combined by high pressure forming and high temperature sintering. It is mainly applied to the masonry of iron outlet, tuyere and hearth of blast furnace. It has the characteristics of high bending strength at high temperature, high softening temperature under load, corrosion resistance and high temperature volume stability.
General Properties
Chemical Analysis Item Standard Al2O3 ≥75% Fe2O3 ≤1.0% SiC 6~10% Physical Properties
Item Unit Standard Apparent Porosity % ≤16 Bulk Density g/cm³ ≥2.95 Cold Crushing Strength MPa ≥100 Refractoriness Under load （T0.2）
℃ ≥1660 Permanent Linear Change 1450℃×2h % -0.2~0.1
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Songlou lndustrial Zone Xinmi Henan China