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high alumina refractory brick for lime kilns
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Specifications
1.Strong volume stability at high temperatures
2.good thermal shock resistant
3.wear resistance and chemical attack resistanc
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trademark |
YRS-70 |
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item |
index |
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Chemical composition(%) |
Al2O3 |
≥70 |
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Fe2O3 |
≤2 |
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Refractory temperature(°C) |
≥1790 |
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Volume density (g/cm3) |
2.50-2.60 |
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Apparent porosity(%) |
≤22 |
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Cold crushing strength(MPa) |
≥60 |
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Refractoriness under load(T0.6,°C) |
≥1500 |
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Thermal expansion rate (1000°C,%) |
0.4-0.5 |
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conductive coefficient (W/m.K) |
1.2-1.4 |
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Thermal shock resistance,time(1100°C,water-cooling) |
≥20 |
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