Skamol Group SICAL 78 Silicon Nitride-Bonded Silicon Carbide Brick

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Skamol Group SICAL 78 Silicon Nitride-Bonded Silicon Carbide Brick
Categories:	Ceramic; Carbide
Material Notes:	Silicon nitride-bonded silicon carbide brick has the following characteristics: Max. service temperature 1580°C (2876°F) For sidewall lining of aluminum reduction cells High thermal conductivity Low porosity Low thermal expansion Low gas permeability Outstanding abrasion and erosion resistance High modulus of rupture Superior resistance to metal penetration and attack Extremely high crushing strength Excellent oxidation resistance and resistance to corrosion Information provided by Skamol.
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Physical Properties	Metric	English	Comments

Bulk Density	2.64 g/cc	0.0955 lb/in³	EN 993-1 1995
Porosity	17 %	17 %	Apparent; EN 993-1 1995
Permeability	<= 0.050	<= 0.050	nPm, Permeability to gases; EN 993-4 1995

Mechanical Properties	Metric	English	Comments
Modulus of Rupture	0.0440 GPa	6.38 ksi	EN 993-6: 1995
Compressive Strength	160 MPa	23200 psi	EN 993-5 1998

Thermal Properties	Metric	English	Comments
CTE, linear	4.30 µm/m-°C @Temperature 20.0 - 1000 °C	2.39 µin/in-°F @Temperature 68.0 - 1830 °F	ASTM C-372
Thermal Conductivity	21.0 W/m-K @Temperature 700 °C	146 BTU-in/hr-ft²-°F @Temperature 1290 °F	Hot strip, Mean temp.; SINTEF
	28.0 W/m-K @Temperature 500 °C	194 BTU-in/hr-ft²-°F @Temperature 932 °F	Hot strip, Mean temp.; SINTEF
	38.0 W/m-K @Temperature 200 °C	264 BTU-in/hr-ft²-°F @Temperature 392 °F	Hot strip, Mean temp.; SINTEF
Maximum Service Temperature, Air	1580 °C	2880 °F

Component Elements Properties	Metric	English	Comments
Al2O3 + Fe2O3 + CaO	0.50 %	0.50 %
Si3N4	18 %	18 %
SiC	78 %	78 %
Silicon, Si	0.50 %	0.50 %
SiO2 + Si2ON2	2.0 %	2.0 %

Descriptive Properties
Color	Grey
Corrosion Resistance	3		SINTEF
Dimensional Tolerances (Length/Width/Thickness)	±2.0/±2.0/±1.0 mm
Standard Sizes	510x300x50mm, 500x300x100mm, or 230x114x64mm		Other sizes made on request

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