Chrome Magnesite Bricks

Kerui chrome magnesite bricks are an alkaline refractory material with excellent performance. Prices for magnesite chrome bricks start at $450 per ton or $2.41 per brick. In addition, we will have bigger discounts for customers who buy in bulk. The promotion is ongoing, welcome to contact us to get the best price!

  • MgO(≥): 45% – 65%
  • Apparent Porosity: 19% – 22%
  • 0.2MPa Refractoriness Underload: 1530℃ – 1650℃
  • Cold Crushing Strength: 20MPa – 35MPa
Chrome Magnesite Bricks

What are Chrome Magnesite Bricks?

The chromite bricks are a composite alkaline refractory brick containing 18% to 30% chromium oxide and 25% to 55% magnesium oxide, which is made from chromium ore and sintered magnesia as raw materials. When the ratio of chromium ore and sintered magnesia is 50% each, the product has the greatest thermal shock resistance. Sometimes we also call it thermal shock stable chrome magnesia brick, we mainly use it as alkaline open hearth roof brick.

The main components of chrome magnesite bricks are chromium oxide and magnesium oxide. Therefore, it has good thermal stability and refractoriness above 2000℃(3632℉). Generally speaking, we call magnesia-chrome bricks with a chromium ore content of less than 50% and chrome-magnesia bricks with a chromium ore content of greater than or equal to 50%. In addition, Kerui not only produces burnt mag chrome brick fired in a weak oxidizing atmosphere but also sells unburnt mag chrome brick.

Mgo Bricks
Magnesia Brick
Magnesia Chromite Bricks

Physical and Chemical Indicators of Chrome Magnesite Bricks

Tips: this table is formulated concerning Chinese refractory industry standards. Contact us or follow us on Linkedin for more information.

ω (MgO)/%μ0504560556560
ω (Cr2O3)/%μ01616121288
Apparent Porosity/%μ0192219211921
Cold Crushing Strength/MPaμ0352535303530
0.2MPa Refractoriness Underload T0.6/℃μ0165015501650155016501530

4 Types and Properties of Magnesite Chrome Bricks

Common Burnt Chrome Magnesite Bricks

These magnesite refractory bricks have the characteristics of high temperature resistance, strong resistance to alkaline slag erosion, good thermal stability and resistance to spalling. Moreover, it also has a certain adaptability to acidic residues.Kerui Common Burnt Magnesia Chrome Brick

Direct Bonded Chrome Magnesite Bricks

This magnesia brick has fewer impurities and the crystalline phases are directly bonded. It has low porosity, high compressive strength, strong wear resistance, strong erosion resistance, good thermal shock resistance and good spalling resistance.Directly Bonded Magnesia Chrome Bricks

Fused Rebonded Chrome Magnesite Bricks

Fused rebonded chrome magnesia bricks are heatproof bricks with particularly good corrosion resistance. Moreover, its high temperature performance is between that of fused cast magnesia chrome bricks and burnt magnesia chromium bricks.Kerui Fused Bonded Magnesia Chrome Brick

Unburnt Chrome Magnesite Bricks

Compared with burnt magnesite chrome bricks, these wholesale fire bricks have a simplified manufacturing process and low cost. Besides, it also has high normal temperature compressive strength, low porosity and good thermal shock stability.Unburnt Chrome Magnesite Bricks

Application of magnesite chrome bricks

Magnesia chrome bricks have almost replaced magnesium bricks in the steel smelting and non-ferrous metal smelting industries. In addition, the chromium oxide (Cr2O3) contained in it can continue to diffuse, making the magnesia chrome bricks easy to stick to the kiln skin. Therefore, in the past 30 years, it has been a frequently used refractory material in the cement kiln firing zone. The following are the specific application scenarios of magnesia chrome bricks.

  • Used in equipment in the metallurgical industry. Such as constructing open hearth furnace tops, electric furnace tops, external refining furnaces and various non-ferrous metal smelting furnaces;
  • Used in the high-temperature parts of the furnace wall of high-power electric furnaces;
  • Used in the high-erosion area of the refining furnace outside the furnace;
  • Used in the high erosion area of the non-ferrous metal flash smelting furnace;
  • Used in the firing zone of cement rotary kilns and the regenerator of glass kilns.

Uses of Chrome Magnesite Bricks

The Best Price of Kerui Magnesia Chromite Bricks Supplier

We are very confident to say that the price of our Kerui chrome magnesia bricks is really cheap! It only costs US$450 per ton and only US$2.41 per block. Besides, our products are of high quality and great performance and this price is simply unbeatable! As fire brick suppliers, we are well aware of the fierce competition in the market. So, we work hard to ensure that our products are not only affordable but also of excellent quality. Choosing Kerui magnesia chrome bricks will not only save you a lot of costs on your project but also ensure you get the best performance and long-lasting durability.

This price advantage can not only attract more customers but also bring stable profits to your business. Take advantage of this excellent price and order now, so that your project can get twice the result with half the effort in terms of cost control and quality assurance!

Kerui Fire Bricks Manufacturers


Kerui Refractory has professional production equipment and advanced manufacturing technology. Kerui can adjust the performance of fire refractory products in the production environment according to the different parts and temperature requirements of each thermal kiln. At the same time, Kerui’s professional engineers will also help customers design special-shaped bricks for masonry in complex parts of industrial equipment. In other words, we take into account the customer’s business economic benefits and subsequent maintenance needs. Welcome to Kerui to buy cost-effective refractory bricks!

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