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Magnesium Brick

The raw material of magnesium brick production mainly relies on magnesite. The production process of magnesia brick is to mix dead burned magnesia (particles below 5 mm to fine powder) with an appropriate amount of sulfite pulp waste liquid or caustic magnesia as the binder under the press molding. Magnesium brick components are: metallurgical magnesia , sulfite pulp waste liquid, caustic magnesia. Advantages High temperature resistance Resistance to alkaline slag erosion ability is strong Multi mineral composition, strong alkalinity, high density Magnesium brick has good thermal conductivity a

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Magnesium Brick

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Shape Refractory

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Magnesium Brick Details

Advantages

High temperature resistance

Resistance to alkaline slag erosion ability is strong

Multi mineral composition, strong alkalinity, high density

Magnesium brick has good thermal conductivity and low thermal insulation

magnesia brick

Precautions

High thermal conductivity, second only to carbon brick and silicon carbide brick in refractory products

The thermal shock resistance is poor, so the purity of magnesium brick can improve the thermal shock resistance

The ability to resist acid slag is very poor. It can not be directly contacted with silicon brick when used. Generally, it should be separated by neutral brick

Hydration resistance is poor, water is easy to hydrate, and produce cracks, reduce its strength. Therefore, in the storage and transportation should pay attention to moisture, rain and snow

Application

Magnesium brick can withstand high temperature heat load of liquid steel and molten slag, flow scouring of fluid and chemical erosion of liquid steel and strong alkaline slag, so it is widely used in high temperature industries such as steel, metallurgy, glass and cement

Physical And Chemical Indicators

Brand Properties		MD92	MD95	MD97	MD98
Bulk density(g/cm3)		2.90	2.95	3.00	3.00
Refractoriness under load T2 (ºC)		1550	1650	1700	1700
Apparent Porosity (%)		18	16	15	15
Cold Crushing Strength(MPa)		55	60	70	80
Thermal shock resistance 950deg air cool (times)		10	10	10	10
Composition(%)	MGO	92	95	97	97.5
	CaO	2.5	2.0	1.6	1.2
	SiO2	3.5	2.5	1.2	0.6

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