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LyTherm® 970-LK commercial grade paper is a lightweight refractory material processedfrom washed, spun, high purity alumina-silica fibers formed into a highly flexiblesheet. It is recommended for continuous use at temperatures up to 2300°F (1260°C) inapplications where insulating efficiency and high strength are important.
Features
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· Easy to cut, wrap, or form · Temperature stability · Low thermal conductivity |
· Low heat storage · Resilient · Light Weight |
· High heat reflectance · Excellent corrosion resistance · Good dielectric strength · Thermal Shock Resistant |
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Typical Applications |
Testing/Engineering Services |
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· Parting plane in refractory linings · Combustion chamber liners · Backup lining for metal troughs · Hot top linings · Thermal and electrical insulation · Refractory backup insulation · Coke oven door shock absorption medium · Kiln car deck covering |
· Thermal imaging for performance validation · Thermal conductivity for material characterization · Thermal modeling for engineering solutions
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Physical Properties |
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Melting Point, °F (°C) |
3200 (1760) |
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Use Limit, °F (°C) |
2300 (1260) |
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LOI, % |
8-10 |
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Density, lb/ft3(kg/m3 ) |
6-9 (96-144) |
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Dielectric Strength, V/mil |
50 |
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Chemical Properties % |
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Al2 O3 |
47.00 |
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SiO2 |
52.62 |
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Na2 O |
0.18 |
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Fe2 O3 |
0.03 |
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Others |
0.17 |
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Tensile Strength lb/in (kg/25mm) |
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Machine Direction Tensile |
16.53 (7.38) |
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Cross Direction Tensile |
13.23 (5.90) |
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Apparent Thermal Conductivity |
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Mean Temperature, °F (°C) |
Thermal Conductivity BTU in/hr ft2 °F (W/mK) |
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75 (167) |
0.040 (0.280) |
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177 (350) |
0.054 (0.375) |
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260 (500) |
0.066 (0.456) |
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343 (650) |
0.076 (0.530) |
Technical Data Sheet
