Magnesite alumina refractory bricks

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Magnesite alumina refractory bricks

With high magnesite clinker and periclase magnesite alumina spinal as raw material,the brick is made under high pressure,and has a very good thermal spalling resistance.it is widely used in high temperature zones in all industrial furnaces and kilns.

 

	ML-80A	ML-80B	ML-85A	ML-85B	ML	MJ-80	Magnesite alumina chrome brick
MgO ≥(%)	80	80	85	85	85-88	78	84
Al2O3 %	5-10	5-10	4-8	4-8	6-8	8-13
Al2O3+Cr2O3%							5-8
Cr2O3%							1-2
0.2MPa Initial softening T	1600	1580	1650	1630	1630	1600	1630
Appearent Porosity≤(%)	18	20	18	19	18	18	17
Cold Crushing Strength	39.2	29.4	45	38	40.6	40	45
Thermal Shock Resistance	3	3	3	3	3	4(no lower than 1100°C	4(no lower than 1100°C

 

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