Half of graphite carbon brick with high temperature point section of anthracite as main raw materials, medium temperature pitch as binder, forming after the high temperature roasting, finish machining. The product has certain coefficient of thermal conductivity, good alkali resistance, can meet the basic requirement of blast furnace, mainly is suitable for the blast furnace throat opening position.
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Half of graphite carbon block YB/T4037-2005
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Item
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Ash
（%）≥
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True density（g/cm3)≥
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Thermal conductivity 400℃ w/(m.k)≥
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Compression strength
（Mpa）≥
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Volume density（g/cm3)≥
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Breaking strength
（Mpa）≥
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coefficient of linear expansion℃-1(20-900℃)
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Porosity
（%）≤
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carbon block
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8
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1.90
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13.96
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38
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1.55
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9.8
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3.3*10-6
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18
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carbon additive carbon raiser
ferro alloys furnace use carbon block
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