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Zircar Refractory Composites RS-99-45 Refractory Sheet

Category Ceramic , Oxide , Aluminum Oxide
Manufacturer Zircar Refractory Composites, Inc.
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Zircar Refractory Composites RS-99-45 Refractory Sheet.pdf
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Material Notes:
ZRCI Refractory Sheet Type RS-99-45 is comprised of 99% alumina. This "All-Alumina" material is strong, uniform, rigid, refractory structure composed of alpha alumina fibers and high purity inorganic binders. Type RS-99-45 has a high purity alumina bond making it well suited for use in high vacuum and reducing environments where silica cannot be tolerated, such as power metal and MIM furnaces with H2 atmospheres. It also has high electrical resistivity at elevated temperatures allowing it to be used in direct contact with resistance heating elements. It exhibits superior hot strength and dimensional stability to 1650°C (3000°F).Information provided by ZIRCAR Refractory Composites, Inc. (ZRCI)
Physical Properties Metric English Comments
Density 0.720 g/cc
0.0260 lb/in³
Porosity 85 %
85 %
Mechanical Properties Metric English Comments
Modulus of Rupture 0.00207 GPa
0.300 ksi
parallel to thickness
Compressive Yield Strength 1.31 MPa
190 psi
at 10% compression, parallel to thickness
Thermal Properties Metric English Comments
CTE, linear 4.00 µm/m-°C

@Temperature 20.0 - 400 °C
2.22 µin/in-°F

@Temperature 68.0 - 752 °F
Thermal Conductivity 0.120 W/m-K

@Temperature 427 °C
0.833 BTU-in/hr-ft²-°F

@Temperature 801 °F
0.160 W/m-K

@Temperature 900 °C
1.11 BTU-in/hr-ft²-°F

@Temperature 1650 °F
0.220 W/m-K

@Temperature 1200 °C
1.53 BTU-in/hr-ft²-°F

@Temperature 2190 °F
0.290 W/m-K

@Temperature 1650 °C
2.01 BTU-in/hr-ft²-°F

@Temperature 3000 °F
Maximum Service Temperature, Air 1650 °C
3000 °F
Shrinkage 1.00 %

@Temperature 1200 °C,
Time 14400 sec
1.00 %

@Temperature 2190 °F,
Time 4.00 hour
Component Elements Properties Metric English Comments
Al2O3 99 %
99 %
SiO2 1.0 %
1.0 %
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