tunnel kiln insulating refractory fire brick (74) Online Manufacturer
Al2O3: ≥60%
Fe2O3: ≤2%
Fe2O3: ≤2%
Apparent Porosity: ≤23%
Material: Bauxite
Color: White
Bulk Density ( G/cm3): ≤1.3
Cold Crushing Strength (MPa): ≥5.0
Cold Crushing Strength: ≥3.0 MPa
Linear Change On Reheating,(5h,≤2%): ≥1400 ℃
Product Description: Fireclay Refractory Brick Based On Chamotte, Fireclay, Ceramic Bond
Molding Method: Machine Pressed Brick
SiO2: 48%
Al2O3: 45%
SiO2: ≥94.5 %
Al2O3: ≤1.5 %
Bulk Density: ≤1.3 G/cm3
Cold Crushing Strength: ≥5.0 MPa
Bulk Density: ≤1.2 G/cm3
Linear Change On Reheating,(5h,≤2%): ≥1350 ℃
SiO2 %: ≥91
Bulk Density ( G/cm3): ≤1-1.2
Bulk Density: ≤0.8 G/cm3
Cold Crushing Strength: ≥3 MPa
Bulk Density: ≤1.2 G/cm3
Cold Crushing Strength: ≥4.5 MPa
Raw Material: Mullite
Al2O3: ≥50%
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