Alumina Carbon Bricks

Fired microporous alumina carbon bricks feature excellent resistance to alkali corrosion and titanium slag corrosion. They are non-wettable by slag and high-temperature melts, and possess outstanding thermal shock resistance, high strength, and excellent oxidation resistance.

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Physical and Chemical Indicators

Item	WLT1	WLT2
Al₂O₃ (%)	≥ 65	≥ 60
C (%)	≥ 11	≥ 11
Cold Crushing Strength (MPa)	≥ 70	≥ 60
Bulk Density (g/cm³)	≥ 2.85	≥ 2.65
Apparent Porosity (%)	≤ 16	≤ 17
Molten Iron Erosion Index (%)	≤ 2	≤ 3
Thermal Conductivity (W/(m·K))Room Temp	≥ 16	≥ 16
Thermal Conductivity (W/(m·K))300 ℃	≥ 15	≥ 15
Thermal Conductivity (W/(m·K))600 ℃	≥ 14	≥ 14
Thermal Conductivity (W/(m·K))800 ℃	≥ 13	≥ 13
Alkali Resistance (Strength Change Rate, %)	≤ 10	≤ 10
Permeability (m² (mDa))	≤ 4.94 × 10^-10 (0.5)	≤ 1.97 × 10^-9 (2.0)
Average Pore Diameter (μm)	≤ 0.5	≤ 0.7
Pore Volume < 1μm (%)	≥ 80	≥ 70

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