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Magnesia chrome brick

Magnesia chrome brick is a basic refractory product, which has a very high refractoriness under load and is usually operated in harsh environments in metallurgical industrial furnaces, such as the tuyere of copper smelting furnaces.

Other name: Magchrome brick

Model Number: HCR 12A,HCR 9A,HCR 8A,HCR 6,HCR 4,HCR Ge

Certification: ISO 9001-14001

Minimum Order Quantity: 5 MT

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Magnesia chrome brick

Description:

Magnesia chrome brick is a basic refractory product, which is made of periclase and magnesia chrome spinel. According to the raw materials and process characteristics of the products, it can be divided into silicate-bonded magnesia-chrome bricks, direct-bonded magnesia-chromium bricks, re-combined magnesia-chrome bricks, semi-recombined magnesia-chrome bricks, pre-reacted magnesia-chrome bricks and fused cast magnesia chrome bricks.

Advantages:

High strength, good thermal shock resistance, erosion resistance, wear resistance

Application:

Metallurgy furnace, copper smelting furnace, cement rotary kiln, glass industry furnace


Magnesia chrome brick physical and chemical

ItemHCR 8AHCR 12AHCR 9AHCR 6HCR 4HCR Ge
MgO  min%827570758080
Cr₂O₃ min%8129643~5
SiO₂ MAX%1.51.52.82.82.51.5
Apparent porosity MAX %171719181818
Bulk Density g/cm³33.0532.952.933
Cold Crushing Strength Mpa ≥454540404045
Refractoriness under load of 0.2Mpa(℃)170017001600160016001650
Thermal shock stability (950℃ air cold)>808060606080
Thermal Conductivity (1000℃)W/m.k ≤2.82.82.82.9--
Therm.Exp (1400℃) %1.51.51.51.4--




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