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Parameters
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Comments
MgO,% ≥: | 80 | Cr2O3,% ≥: | 12 |
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SiO3,≤: | 2.5 | Bulk Density,g/cm3,≥: | 3.0 |
Apparent Porosity ,%≤: | 17 | Cold Crushing Strength, Mpa≥: | 50 |
Name: | Refractory Fire Bricks |
Magnesia Chrome Bricks are made from high grade magnesite clinker and chrome oxide. By high pressure shaping and high temperature firing, its characteristic is the high direct-bonding rate, and big crystallite. It has a good thermal spalling resistance. The low-basic neutral nature gives itself a good slag resistance when servicing low-acid feed furnaces. The bricks is a realistic lining material for refining furnace, electric furnace, glass melting furnace and cement rotary kiln etc.
Specification
Item |
Chrome Magnesite Brick |
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Mg-Cr-6 |
Mg-Cr-8 |
Mg-Cr-9 |
Mg-Cr-12 |
Mg-Cr-16 |
Mg-Cr-18 |
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Chemical Content |
MgO |
≥86 |
≥84 |
≥83 |
≥80 |
≥76 |
≥74 |
|
Cr2O3 |
≥6 |
≥8 |
≥9 |
≥12 |
≥16 |
≥18 |
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SiO3 |
≤1.8 |
≤1.8 |
≤1.8 |
≤2.5 |
≤2.8 |
≤2.8 |
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Bulk Density, g/cm3 |
≥2.90 |
≥2.95 |
≥3.0 |
≥3.0 |
≥3.05 |
≥3.10 |
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Apparent porosity ,% |
≤18 |
≤17 |
≤17 |
≤17 |
≤17 |
≤17 |
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Cold Crushing Strength, Mpa |
≥50 |
≥50 |
≥50 |
≥50 |
≥45 |
≥45 |
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Refractoriness, ℃ |
T0.6 |
≥1600 |
≥1650 |
≥1700 |
≥1700 |
≥1700 |
≥1700 |
|
Thermal shock resistance (1100℃ water), time |
≥4 |
≥5 |
≥7 |
≥7 |
≥7 |
≥7 |
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Performance |
High temperature structure with high intensity, high refractoriness under load, strong resistance to chemical attack, etc. |
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Application |
Widely used in cement rotary kiln calcining zone, glass furnace, steel-making furnace, converter, as well as the melting furnace of non-ferrous metal. |