Cerachrome Blanket

Note: This is a variation of Kaowool Blanket Products (1800ºF – 2600ºF Insulation Blankets).

Kaowool Blanket, Cerawool® Blanket, Cerablanket®, Cerachem® Blanket and Cerachrome® Blanket are air laid into a continuous mat and mechanically needled for added strength and surface integrity. Blanket products do not contain organic binders. Thermal Ceramic Blankets providcell namexcellent resistance to chemical attack. Exceptions include hydrofluoric acid, phosphoric acid, and strong alkalies (ie. Na2O, K2O). Thermal Ceramic Blankets arc unaffected by oil or water. Thermal and physical properties are restored after drying.

Specifications

Thermal Conductivity at 500ºF (260ºC)0.44 BTU-in/hr-ft²-ºF at 8 pcf
0.47 BTU-in/hr-ft²-ºF at 6 pcf
0.54 BTU-in/hr-ft²-ºF at 4 pcf
Melting Point ( ºC )1760
Melting Point ( ºF )3200
Military Specifications and ApprovalsMil-1-231228B - 6, 8 blanket
Mil-1-23128A - 3, 6 pcf blanket
Mil-1-24244 - All blankets
Water Leachable Elements on Surface of Fiber, Typical QuantitiesBoron - 40
Chlorine - <10
Fluorine - <5
Silicate - 125
Sodium - 10
Sulphur - 10
Acoustical Performance per ASTM C-423 A and E-795, Sound Absorption Coefficient (1" - 4 pcf)0.29 at 250 Hz
0.85 at NRC
0.98 at 4000 Hz
0.99 at 2000 Hz
1.00 at 500 Hz
1.04 at 1000 Hz
Acoustical Performance per ASTM C-423 A and E-795, Sound Absorption Coefficient (1" - 8 pcf)0.50 at 250 Hz
0.80 at NRC
0.91 at 1000 Hz
0.91 at 2000 Hz
0.92 at 500 Hz
0.94 at 4000 Hz
Acoustical Performance per ASTM C-423 A and E-795, Sound Absorption Coefficient (2" - 4 pcf)0.92 at 250 Hz
1.00 at NRC
1.01 at 1000 Hz
1.01 at 500 Hz
1.03 at 2000 Hz
1.10 at 4000 Hz
Acoustical Performance per ASTM C-423 A and E-795, Sound Absorption Coefficient (2" - 8 pcf)0.72 at 500 Hz
0.80 at 250 Hz
0.85 at NRC
0.86 at 1000 Hz
0.92 at 2000 Hz
1.02 at 4000 Hz
Density ( lb/ft³ )4
6
8
Thermal Conductivity at 1000ºF (540ºC)0.93 BTU-in/hr-ft²-ºF at 8 pcf
1.06 BTU-in/hr-ft²-ºF at 6 pcf
1.34 BTU-in/hr-ft²-ºF at 4 pcf
Thermal Conductivity at 1500ºF (816ºC)1.09 BTU-in/hr-ft²-ºF at 6 pcf
1.60 BTU-in/hr-ft²-ºF at 8 pcf
2.48 BTU-in/hr-ft²-ºF at 4 pcf
ColorBlue/Green
Thickness ( in )1/2 to 2
Thickness ( mm )12.5 to 50
Maximum Temperature Rating ( ºC )1426
Maximum Temperature Rating ( ºF )2600
Maximum Cont. Use Limit ( ºC )1371
Maximum Cont. Use Limit ( ºF )2500
Nominal Chemical AnalysisAlumina, Al2O3 - 43
Chromium Oxide, Cr2O3 - 3
Other - Trace
Silica, SiO2 - 54
Thermal Conductivity at 1800ºF (837ºC)2.05 BTU-in/hr-ft²-ºF at 8 pcf
2.45 BTU-in/hr-ft²-ºF at 6 pcf
3.23 BTU-in/hr-ft²-ºF at 4 pcf
Thermal Conductivity at 2000ºF (1093ºC)2.65 BTU-in/hr-ft²-ºF at 8 pcf
2.83 BTU-in/hr-ft²-ºF at 6 pcf
3.74 BTU-in/hr-ft²-ºF at 4 pcf

Additional Information

Made from spun alumina-silica-chromia fiber, Cerachrome Blanket is well suited for hot face lining applications where higher temperatures arcell namencountered, such as soaking pit covers, reheat and forging furnaces. Cerachrome Blanket with its chromia-stabilized chemistry offers improved long term shrinkage characteristics over zirconia containing blankets such as Cerachem. Cerachrome Blanket effectively fills the gap between zirconia blankets and high alumina products.

Back to top