Common Magnesia Chrome
1. MG-4
MgO 74%min
Cr2O3 4%min
Apparent Porosity 20%max
Cold Crushing Strength 35%min
0.2MPA refractoriness under load 1560℃ min
Thermal shock stability 5%
2. MG-4
MgO 65%min
Cr2O3 8%min
Apparent Porosity 20%max
Cold Crushing Strength 35%min
0.2MPA refractoriness under load 1580℃ min
Thermal shock stability 5%
3. MG-12
MgO 60%min
Cr2O3 12%min
Apparent Porosity 20%max
Cold Crushing Strength 35%min
0.2MPA refractoriness under load 1580℃ min
Thermal shock stability 5%
4. MG-16
MgO 50%min
Cr2O3 16%min
Apparent Porosity 19%max
Cold Crushing Strength 35%min
0.2MPA refractoriness under load 1610℃ min
Thermal shock stability 5%
5. MG-20
MgO 42%min
Cr2O3 20%min
Apparent Porosity 19%max
Cold Crushing Strength 35%min
0.2MPA refractoriness under load 1640℃ min
Thermal shock stability 5%
Direct-bounded magnesia chrome brick
1. ZMG-4
MgO 75%min
Cr2O3 4%min
SiO2 2.5%max
Apparent Porosity 18%max
Cold Crushing Strength 45%min
0.2MPA refractoriness under load 1650℃ min
Thermal shock stability 6%
2. ZMG-8
MgO 70%min
Cr2O3 8%min
SiO2 2%max
Apparent Porosity 18%max
Cold Crushing Strength 45%min
0.2MPA refractoriness under load 1650℃ min
Thermal shock stability 6%
3. ZMG-12
MgO 65%min
Cr2O3 12%min
SiO2 21.5%max
Apparent Porosity 18%max
Cold Crushing Strength 45%min
0.2MPA refractoriness under load 1650℃ min
Thermal shock stability 6%
4. ZMG-16
MgO 60%min
Cr2O3 16%min
SiO2 1.5%max
Apparent Porosity 18%max
Cold Crushing Strength 40%min
0.2MPA refractoriness under load 1700℃ min
Thermal shock stability 6%
5. ZMG-20
MgO 55%min
Cr2O3 20%min
SiO2 1.2%max
Apparent Porosity 18%max
Cold Crushing Strength 35%min
0.2MPA refractoriness under load 1700℃ min
Thermal shock stability 6%