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Magnesia-calcium brick

Magnesia-calcium bricks are made of two-step calcined magnesia-calcium sand and high-quality high-purity (fused or sintered) magnesia as raw materials.

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Refractory materials for the iron and steel industry

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Magnesia-calcium brick is made of two-step calcined magnesia-calcium sand and high-quality high-purity (electric fusion or sintering) magnesia as raw materials, and MgO/CaO ratio is selected according to different needs. After high-pressure molding, high-temperature sintering and vacuum impregnation of asphalt or paraffin wax, the product has the characteristics of compact structure, low porosity, high strength, strong resistance to alkaline slag erosion, low high-temperature creep rate and so on, it is an ideal environmental protection material for refining furnaces such as AOD and VOD.

Brand	Index	MgO + high (%)	High (%) later	Sio₂ + al₂o₃ + fe₂o₃ (%)≤	apparent porosity A ·P(%)≤	Compressive strength C · C · S (MPa)≥	Softening temperature of 0.2MPa load R · U · L(T · L) ≥
HTMCa-15A		94	15	2.5	8	60	1700
HTMCa-15B		92	15	3.0	8	55	1650
HTMCa-20A		94	18	2.5	8	60	1700
HTMCa-20B		92	18	3.0	8	55	1650
HTMCa-25A		94	23	2.5	8	60	1700
HTMCa-25B		92	23	3.0	8	55	1650
HTMCa-30A		94	28	2.5	8	60	1700
HTMCa-30B		92	28	3.0	10	55	1650
HTMCa-40A		94	38	2.5	10	60	1700