Magnesia Dolomite CaO Brick

MgO+CaO% (≥) 94
CaO% (≥) 18-48
Apparent Porosity(%) 15
Cold Crushing Strength (MPa) 60

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Dolomite bricks

Dolomite bricks are refractory products made from 50-75% MgO and 18-48% CaO and other binders and additives. This brick is also called magnesia calcium brick, MgO-CaO brick and so on. Due to the combination of high-quality materials, dolomite high temperature refractory brick has high-temperature resistance, thermal stability, and alkaline characteristics, which makes it ideal for various demanding environments. Calcium magnesia is used as raw material, and after crushing, batching, mixing, and shaping, it is fired at a high temperature of 1550 to 1600°C.

Item/Grade	MG-20	MG-20A	MG-30	MG-30A	MG-40	MG-40A	MG-50
(CaO)/%	18		28		38		48
(MgO+CaO)/%	92	94	92	94	92	94	94
(SiO2+Al2O3+Fe2O3)/%	3.0	2.5	3.0	2.5	3.0	2.5	2.5
Apparent Porosity/%	15.0
Cold Crushing Strength/MPa	60
0.2MPa Refractoriness Under Load T0.6/℃	1650	1700	1650	1700	1650	1700	1700