high porosity fire retardant bricks (4) Online Manufacturer
Cold Crushing Strength: ≥3 MPa
Linear Change On Reheating,(5h,≤2%): ≥1250 ℃
Cold Crushing: ≥ 3MPa
Linear Change On Reheating,(5h,≤2%): ≥ 1250℃
Bulk Density: ≤0.7 G/cm3
Cold Crushing Strength: ≥2.0 MPa
Al2O3: ≥50
Apparent Porosity: ≤23
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