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 PRODUCT>REFRACTORY BRICK |
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Item
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MLJ-70
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MLJ-75
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MLJ-80
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MgO (%) min
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70
|
75
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80
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Al2O3 (%)
|
8-13
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8-13
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8-13
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Fe2O3(%) max
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1.5
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1.5
|
1.5
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CaO(%) max
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2.0
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2.0
|
1.5
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SiO2(%) max
|
3
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2
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1.5
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Refractoriness under load,
0.2MPa, Ta, (°C)
|
1600
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1600
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1650
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Porosity (%) max
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19
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18
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17
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Bulk density (g/cm3) min
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2.95
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2.95
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3.0
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Cold crushing strength (MPa) min
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45
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45
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50
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Thermal Shock (1100℃water)
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8
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10
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10
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