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Magnesia Chrome rotary kiln brick

Magnesia chrome brick is an alkaline refractory product, which is made of periclase and magnesia chrome spinel, and is fired at 1600~1800 °C in an oxidizing atmosphere. It can also be made into non-burned brick by chemical bonding agent such as water glass.

Other name: Magnesia Chrome brick

Model Number: HCR8A,HCR12A,HCR9A,HCR6,HCR4,HCR Ge

Certification: ISO 9001-14001

Minimum Order Quantity: 5MT

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Direct bonded magnesia-chrome brick

Introduction:

Direct bonded magnesia-chrome brick is made of chromium concentrate and high purity sintered or fused magnesia, by high temperature or super temperature sintering.

Advantages:

Low apparent porosity, high cold crushing strength, strong wear resistance, erosion resistance, excellent thermal shock resistance

Application:

Calcining zone of more than 1000t/d NSP cement rotary kiln


Special magnesia-chrome brick

Introduction:

Super magnesia-chrome brick is made of high purity compound spinel, by high pressure molding and high temperature sintering.

Advantages:

Excellent resistance to peeling and erosion, excellent cold crushing strength and thermal stability, strong thermal shock resistance, low Cr2O3 content

Application:

Calcining zone of more than 4000t/d NSP cement rotary kiln


Magnesia-chrome brick phycial 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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