Specifications

MgO:91-98% Min
SiO2:1.0-3.5%Max
It's used in cement and stell industries....

Physical and chemical index :

Quality Magnesia Brick MZ-91 MZ-92 MZ-95 MZ-96 MZ-97 MZ-98 MgO % ≥91 ≥92 ≥94.5 ≥95.5 ≥96.5 ≥97.5 SiO2 % ≤3.5 ≤3.0 ≤2.0 ≤1.5 ≤1.0   CaO % ≤3 ≤2.5 ≤2.0 ≤1.8 ≤1.5 ≤1.2 Apparent Porosity % ≤18 ≤18 ≤18 ≤18 ≤17 ≤17 Cold Crushing Strength Mpa ≥58 ≥60 ≥60 ≥60 ≥60 ≥60 Bulk Density g/cm3 ≥2.9 ≥2.9 ≥2.95 ≥3.0 ≥3.05 ≥3.1 0.2Mpa Refractoriness Under Load T0.6 ≥1550 ≥1600 ≥1650 ≥1650 ≥1700 ≥1700 Thermal Stability 950°C Wind cycles     ≥20 ≥20 ≥20 ≥20 Reheat liner change 1650°C×2h % ≤0.5