BNZ Materials PA 20 Insulating Firebrick

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BNZ Materials PA 20 Insulating Firebrick
Categories:	Ceramic; Oxide; Silicon Oxide
Material Notes:	BNZ produces many types of Insulating Fire Brick (IFB) for use in applications from 2,000°F (1,093°C) to 3,200°F (1,760°C). Each type is formulated to meet specific thermal and physical requirements and after firing is machined to precise tolerances. Made from high purity refractory clays and other ceramic raw materials, these IFB contain a carefully graded organic filler which is burned out during manufacture to give a uniform controlled pore structure. Information provided by BNZ Materials Inc.
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Physical Properties	Metric	English	Comments

Density	0.625 g/cc	0.0226 lb/in³	ASTM C134
Deformation	0.50 % @Temperature 1093 °C, Time 5400 sec	0.50 % @Temperature 1999 °F, Time 1.50 hour	10 psi load, Hot Load Strength; ASTM C16

Mechanical Properties	Metric	English	Comments
Modulus of Rupture	0.000590 GPa	0.0856 ksi
Compressive Strength	0.686 MPa	99.6 psi	Cold Crush Strength

Thermal Properties	Metric	English	Comments
CTE, linear	5.60 µm/m-°C @Temperature 20.0 - 1093 °C	3.11 µin/in-°F @Temperature 68.0 - 1999 °F
Thermal Conductivity	0.200 W/m-K @Temperature 260 °C	1.39 BTU-in/hr-ft²-°F @Temperature 500 °F	ASTM C182
	0.260 W/m-K @Temperature 538 °C	1.80 BTU-in/hr-ft²-°F @Temperature 1000 °F	ASTM C182
	0.320 W/m-K @Temperature 816 °C	2.22 BTU-in/hr-ft²-°F @Temperature 1500 °F	ASTM C182
	0.350 W/m-K @Temperature 1093 °C	2.43 BTU-in/hr-ft²-°F @Temperature 1999 °F	ASTM C182
Maximum Service Temperature, Air	1093 °C	1999 °F
Shrinkage	0.00 % @Temperature 1232 °C, Time 86400 sec	0.00 % @Temperature 2250 °F, Time 24.0 hour	Permanent Linear Change; ASTM C210

Component Elements Properties	Metric	English	Comments
Al2O3	42.5 %	42.5 %
CaO	2.5 %	2.5 %
Fe2O3	0.70 %	0.70 %
MgO	0.10 %	0.10 %
Na2O	1.0 %	1.0 %	Includes K₂O
SiO2	51.5 %	51.5 %
TiO2	1.5 %	1.5 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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CBNZ924 / 149164

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