al2o3 high alumina insulating brick (131) Online Manufacturer
SiO2: 40~55
Al2O3: 30~60
Refractoriness: SK36
Fe2O3: ≤2%
Al2O3: ≤1.0%
Fe2O3: ≤1.3%
SiO2: ≥94.5 %
Al2O3: ≤1.5 %
Cold Crushing Strength: ≥4.5 MPa
Linear Change On Reheating,(5h,≤2%): ≥1400 ℃
Raw Material: Mullite
Al2O3: ≥50%
Al2O3: ≥48%
Fe2O3: ≤2%
Al2O3: ≤1.0%
Fe2O3: ≤1.3%
Al2O3: ≤1.0%
Fe2O3: ≤1.3%
Colore: Red
Al2O3: ≥48
Al2O3: ≤1.0%
Fe2O3: ≤1.3%
Raw Material: Silica Sand
SiO2: ≥95%
Raw Material: Silica Sand
SiO2: ≥95%
Fe2O3: ≤2%
Bulk Density: ≤1.0g/cm3
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