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Zircar Ceramics ECO-20AA Alumina Insulation

Category Ceramic , Oxide , Aluminum Oxide
Manufacturer Zircar Ceramics
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Zircar Ceramics ECO-20AA Alumina Insulation.pdf
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Material Notes:
ECO-20AA is most commonly utilized as hotface insulation in furnaces with hydrogen rich atmospheres such as bright annealing furnaces.Information provided by Zircar Ceramics.
Physical Properties Metric English Comments
Density 0.310 g/cc
0.0112 lb/in³
Mechanical Properties Metric English Comments
Flexural Strength 0.310 MPa
45.0 psi
Parallel to thickness
Compressive Yield Strength 0.110 MPa
16.0 psi
at 10% Compression, Parallel to thickness
Thermal Properties Metric English Comments
Specific Heat Capacity 1.05 J/g-°C
0.250 BTU/lb-°F
Thermal Conductivity 0.0900 W/m-K

@Temperature 400 °C
0.625 BTU-in/hr-ft²-°F

@Temperature 752 °F
parallel to thickness; ASTM C177-76
0.210 W/m-K

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

@Temperature 2190 °F
Parallel to Thickness; ASTM C177-76
Maximum Service Temperature, Air 1600 °C
2910 °F
Shrinkage 4.00 %
4.00 %
Sag/Distortion, 1in. x 1in. beam on 5in. span, % after 4 hrs @ 1540°C (2740°F)
1.50 %

@Temperature 1650 °C,
Time 3600 sec
1.50 %

@Temperature 3000 °F,
Time 1.00 hour
Perpendicular to Thickness
Component Elements Properties Metric English Comments
Al2O3 98 %
98 %
SiO2 2.0 %
2.0 %
Descriptive Properties Value Comments
Color White
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