The corundum-mullite castable
The corundum-mullite castable uses high-quality refractory materials, and the castable has good thermal shock resistance.
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- Description
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The corundum-mullite castable is made from brown corundum, white corundum, andalusite, mullite, and high-quality bauxite as the main raw materials, combined with ultrafine refractory powder through a scientifically formulated mixing process. It has high purity, relatively high density, good structural integrity, low creep rate, small thermal expansion, excellent thermal shock resistance, and strong chemical erosion resistance. It is widely used in refractory materials and other industries. The corundum-mullite castable, made from high-quality refractory raw materials, exhibits good thermal shock resistance.
Chemical Analysis Item Standard Al2O3 ≥85% Fe2O3 ≤1％ Physical Properties
Item Unit
GMJ-85 GMJ-90 Refractoriness °C ≥1800 ≥1800 High Temperature crushing Strength 1100°C×24h
MPa ≥60 ≥80 1100°Cx3h ≥80 ≥100 1500°Cx3h ≥100 ≥120 Modulus Of Rupture 110℃x24h MPA ≥6 ≥8 1100'℃x3h ≥7 ≥10 1500°Cx3h ≥10 ≥12 Reheating linear Change 1100°C×3h % ±0.2 ±0.2 1500°C×3h ％ ±0.3 ±0.3 Bulk Density 110°C×24h g/cm³ ≥2.90 ≥3.10
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