Mag Chrome Brick is mainly used in metallurgical industry, such as for building open-hearth furnace top, electric furnace top, finery out of furnace and all kinds of non-ferrous metal metallurgy furnace. Fused cast magnesite chrome brick is adopted for high temperature position of furnace wall in electric furnace with ultra high power.

Magnesia chrome brick that made of synthetic compost is adopted for strong erosion area in finery out of furnace. Fused cast magnesite chrome brick or magnesia chrome brick that made of synthetic compost is adopted for strong erosion area of non ferrous metals flash smelting furnace. Besides, Magnesia Chrome Brick also can be used for burning zone in rotary cement kiln and regenerative chamber in glass furnace.

Key Features for Mag Chrome Brick

  • High Refractoriness
  • High Temperature Strength
  • Strong Basic Slag Erosion Resistance
  • Good Thermal Shock Resistance
  • Certain Resistance to Acid Slag
  • Good Refractoriness 
  • Good Corrosion 
  • Low Electrical Conductivity

Product Data

Product ZMC-35 ZMC-28 ZMC-27/13 ZMC-27/10 ZMC-22/12 ZMC-22/10 ZMC-20 ZMC-18 ZMC-15
Chemical Composition
MgO (%) ≥50 ≥55 ≥53 ≥55 ≥58 ≥64 ≥55 ≥66 ≥60
Cr₂O₃ (%) 35-37 28-30 27-28 27-28 20-22 20-22 20-22 18-20 15-18
Fe₂O₃ >13 >10 >12 >10
Mechanical Properties
Refractoriness Under Load 0.2MPa°C 1700 1700 1700 1650 1700 1700 1700
Apparent Porosity (%) ≤16 ≤16 ≤16 ≤16 ≤16 ≤16 ≤16
Cold Crushing Strength (Mpa) ≥45 ≥45 ≥45 ≥45 ≥45 ≥40 ≥40
Bulk Density (Kg/m³) 3350 3250 3250 3250 3200 3100 3050
Thermal Shock Resistance (950°C Air Cooling) 40

Please see our digital catalogue for general size of firebricks