Yumin Refractory

The Magnesite refractory brick, Magnesia alumina spinel brick, Magnesia zirconium brick, Magnesia chrome brick have properties of good corrosion resistance to alkali steam and alkaline slag. It can be used in the alkaline material contact areas, like regenerator of glass kiln, cement kiln, non-ferrous Metal smelting furnaces, electric steel-making furnaces, open hearth furnaces, converters, and iron mixing furnaces, etc.

Technical Data Sheet:  

Index / Product Unit Magnesite Bricks Magnesia Alumina Bricks Magnesia Zircon Bricks Magnesia Chrome Bricks Magnesia-Alumina Spinal Bricks MZ-92 MZ-95 MZ-97 MZ-98 MLZ-80A MLZ-80B YMZ-A YMZ-B DMC-12 DMC-8 DMC-4 MLJ-80 MLJ-75 MLJ-70 MgO≧ % 92 95 97 98 80 80 77 73 70 73 80 80 75 70 CaO ≦ % 2.5 2.0 1.5 1.0 - - - - - - - - - - Al2O3 ≧ % - - - - 5-10 5-10 - - - - - 8-20 8-20 8-20 SiO2≦ % 4.0 2.0 1.2 0.6 - - - - 2.0 1.8 1.8 - - - ZrO2≧ % - - - - - - 12 12 - - - - - - Cr2O3≧ % - - - - - - - - 12 7 2 - - - Apparent Porosity   ≦ % 18 18 17 17 18 20 16 18 18 18 18 17 19 20 Cold Crushing Strength                ≧ Mpa 60 60 60 60 40 30 70 65 45 50 55 40 40 40 Refractories under Load( 0.2Mpa)≧ ℃ 1580 1650 1700 1700 1600 1580 1660 1600 1650 1650 1600 1700 1650 1600 Reheating Linear Change(1650℃*2h) % +0
-0.5 +0
-0.3 +0
-0.2 +0
-0.2 - - - - - - - - - - Bulk Density         ≧ g/cm3 2.9 2.92 3.0 3.02 2.88 2.85 3.1 3.0 3.0 2.95 2.90 2.9 2.88 2.85 Thermal shorck resistance 1100℃ water cycle - - - - 4 4 - - 5 5 5 10 10 8

Note: All chemical-physical data are obtained based on the corresponding refractory bricks of standard size.