Dead burned magnesite- DBM-is produced using selected natural magnesite that is purified and is calcined in a shaft kiln.The final product is used for electric furnacefloors and furnace liner tamping..,. MgO ≥ CaO ≤ SiO2 ≤ L.O.I. ≤ BD ≥ g/cm3 size mm RGMS-87 87 2.2 7.0 0.5 3.1 according to the requirement of customer RGMS-90 90 2.2 5.0 0.3 3.15 RGMS-91 91 2.0 4.5 0.3 3.18 RGMS-92 92 1.8 4.0 0.3 3.18 RGMS-93 93 1.6 3.5 0.3 3.18 MgO ≥ SiO2 ≤ CaO ≤ Fe2O3 ≤ Al2O3 ≤ L.O.I.≤ BD≥(g/cm3) MS–95 95 2.0 1.6 1.0 1.0 0.3 3.20 MS–94 94 2.5 1.8 1.1 1.0 0.3 3.2 size 60-0mm,30-0mm MgO ≥ SiO2 ≤ CaO ≤ Fe2O3 ≤ L.O.I.≤ BD≥(g/cm3) size GMS–98 97.7 0.5 1.2 0.5 0.3 3.30 0–30mm GMS–97a 97.5 0.6 1.2 0.7 0.3 3.30 GMS–97b 97 0.7 1.4 0.8 0.3 3.25 GMS–96 96 1.0 1.4 0.8 0.3 3.25