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Rulon Bearings

Unifrax Isofrax® 1260C Blanket Thermal Insulation
Categories: Ceramic; Oxide; Magnesium Oxide; Silicon Oxide

Material Notes: Isofrax® Thermal Insulation from Unifrax is a fiber that utilizes a unique, patented silica-magnesia chemistry to solve a variety of demanding, high-temperature application problems. Isofrax 1260C Blanket is the product of a long-term research and development effort by Unifrax to produce an insulating blanket which has the high-temperature performance characteristics required in many applications at temperatures up to 2300°F/1260°C and also meets European regulatory requirements (Directive 97/69/EC). Isofrax 1260C Blanket provides low thermal conductivity, excellent thermal stability, thermal shock resistance, low weight, required handling strength, low heat storage, flexibility, and excellent corrosion resistance. Isofrax 1260C Blanket has excellent chemical stability and is unaffected by most chemicals except hydrofluoric and phosphoric acids and concentrated alkalies. If wet by water or steam, thermal and physical properties remain unaffected after drying. Isofrax 1260C Blanket also provides superior resistance to attack from molten aluminum alloys at high temperatures.

    Applications
  • Removable insulating blankets for weld stress relieving
  • Reusable insulation for steam and gas turbines
  • High-temperature kiln and furnace insulation
  • Furnace door linings and seals
  • Furnace repairs
  • Boiler and incinerator linings
  • Seals and gaskets
  • Automotive heat shields
  • Appliance insulation
  • Fire protection
  • Duct, stack and flue linings
  • Vessel covers and lids
  • Personnel heat shields
  • Molten metal splash protection

Information Provided by Unifrax I LLC

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Physical PropertiesMetricEnglishComments
Specific Gravity 2.54 g/cc2.54 g/cc
Density 0.0961 g/cc0.00347 lb/in³
 0.128 g/cc0.00463 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Yield 0.0345 MPa5.00 psiASTM 686-76
 0.0414 MPa6.00 psiASTM 686-76
 
Thermal PropertiesMetricEnglishComments
Melting Point 1500 °C2730 °F
Maximum Service Temperature, Air 1260 °C2300 °FRecommended Operating Temperature
 
Component Elements PropertiesMetricEnglishComments
MgO 18 - 27 %18 - 27 %
Other, total 0.00 - 4.0 %0.00 - 4.0 %Trace Elements
SiO2 70 - 80 %70 - 80 %
 
Descriptive Properties
ColorBluish White
Compression Recovery (%)78at 50% Compression
 89at 30% Compression
 96at 10% Compression
Fiber Diameter (microns)3.0 to 5.0
Temperature Grade (°C)1260

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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