Zircon mullite brick selected high quality mullite sand and zircon powder as its main raw material. Molded by high pressure and sintered by high temperature , the zircon-mullite brick has such advantages as high bulk density, high strength, good thermal shock resistance, high temperature erosion resistance and good slag resistance. It is mainly used in long-life orifice rings, tank bottom, tank superstructure, perfume-bottle feeder, covers for working tanks and soda lime glass.
1, High strength
2, Good thermal shock resistance
3, High temperature erosion resistance
4, Good slag resistance
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ZA-17 |
ZA-20 (Zirmul) |
ZA-25 (Vista) |
ZA-30 |
ZA-11 |
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Al2O3 |
Greater than or equal to 70 |
Greater than or equal to 59 |
Greater than or equal to 57 |
Greater than or equal to 47 |
Greater than or equal to 72 |
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ZrO2 |
Greater than or equal to 17 |
Greater than or equal to 19.5 |
Greater than or equal to 25.5 |
Greater than or equal to 30 |
Greater than or equal to 11 |
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SiO2 |
Less than or equal to 12 |
Less than or equal to 20 |
Less than or equal to 14.5 |
Less than or equal to 20 |
Less than or equal to 12 |
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Fe2O3 |
Less than or equal to 0.5 |
Less than or equal to 0.5 |
Less than or equal to 0.5 |
Less than or equal to 0.3 |
Less than or equal to 0.5 |
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Less than or equal to 17 |
Less than or equal to 17 |
Less than or equal to 17 |
Less than or equal to 18 |
Less than or equal to 17 |
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Bulk Density g/cm3 |
Greater than or equal to 3.15 |
Greater than or equal to 2.95 |
Greater than or equal to 3.15 |
Greater than or equal to 3.10 |
Greater than or equal to 3.1 |
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Greater than or equal to 90 |
Greater than or equal to 100 |
Greater than or equal to 120 |
Greater than or equal to 100 |
Greater than or equal to 90 |
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{{0}}.1Mpa Refractoriness Under Load T0.6 degree |
Greater than or equal to 1650 |
Greater than or equal to 1650 |
Greater than or equal to 1650 |
Greater than or equal to 1650 |
Greater than or equal to 1630 |
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Permanent Linear Change On Reheating( percent )1500 degree X2h |
±0.3 |
±0.3 |
±0.3 |
±0.3 |
±0.3 |
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20-1000 degree Thermal Expansion percent (x 10-6) |
0-0.6 |
0-0.6 |
0-0.6 |
0-0.6 |
0-0.6 |
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Thermal Conductivity (Average800 degree ) W / (M.K) |
Less than or equal to 2.19 |
Less than or equal to 2.19 |
Less than or equal to 2.1 |
Less than or equal to 2.1 |
Less than or equal to 2.19 |
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31 |
31 |
31 |
31 |
31 |
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