Burned magnesia

Burned magnesia burned magnesia is made from natural magnesite quarry, high temperature shaft kiln calcination of. It is a brick and unshaped refractory materials production, product used in steelmaking, electric stove and ramming lining grade index MgO% ≥ SiO2% ≤ CaO% ≤ on ignition% ≤ MS-93 93 3.5 1.6 0.3 MS- 92 92 4.0 1.6 0.3 MS-91 91 4.5 1.8 0.3 MS-90 90 4.5 2.0 0.3 MS-89 89 5.0 2.5 0.5