Magnesia Chrome Brick

Magnesite chrome brick is a good refractory material. It consists of magnesium oxide and chromium oxide, which have good refractoriness and chemical resistance. It resists the alkaline slag in high-temperature environments. Magnesite chrome brick/magnesia chrome brick is usually used for the top of electrical furnaces, non-ferrous metal smelting furnaces, rotary cement kilns, and glass kilns.

Technical Data

Item/Grade		MGe-16A	MGe-16B	MGe-12A	MGe-12B	MGe-8A	MGe-8B
MgO, %	≥	50	45	60	55	65	60
Cr2O3, %	≥	16	16	12	12	8	8
Apparent Porosity, %	≤	19	22	19	21	19	21
Cold Crushing Strength, MPa	≥	35	25	35	30	35	30
0.2MPa Refractoriness Under Load, ℃	≥	1650	1550	1650	1550	1650	1530

Characteristics of Magnesia Chromium Bricks

High Working Temperature

Magnesite chrome brick can withstand 2000℃ and more. Even in the high-temperature working time, it could keep stable. Mag chrome brick is often used in the metallurgical industry, such as the lining of steelmaking furnaces and high-temperature kilns.

High Refractoriness Under Load

Refractoriness under load of Magnesite chrome brick can reach 1550℃. It can withstand high-temperature and high pressure at the same time. Rebonded magnesium chromium brick has a high purity that could effectively improve the refractoriness under load. But the price will be higher than normal magnesia chrome brick. It is usually used for RH furnace vacuum chamber lower groove and impregnation tube.

Excellent Thermal Stability

Chrome magnesite brick has excellent thermal stability. The great thermal shock resistance is conducive to forming excellent thermal stability. The thermal shock resistance is 4 times in 1100℃ and cold water. Using it for regenerators of glass furnaces can extend the life cycle of glass furnaces.

Strong Alkaline Slag Resistance

Magnesium oxide belongs to alkaline oxide so that could resist alkaline slag and erosion. Besides, magnesia chrome can resist acid gases. It will not react with SO2 while the steelmaking furnaces are in working time.

Applications of Mag Chrome Bricks

Magnesium chromium brick is mainly used in the metallurgical industry and high-temperature kilns, such as the top of electrical furnaces, non-ferrous metal smelting furnaces, the AOD furnace air eye area of the external refining device, glass kilns, and rotary cement kilns.

Kerui will provide high-quality mag chrome bricks that have passed the inspection in authority institutions. Our products are widely used in refractory enterprises in many countries. And we build a stable cooperation relationship with our customers. We will give you a suitable discount like our regular partners. Moreover, we have a professional technical team to ensure a smooth progress from your purchase to construction.