High Alumina Ceramic Fiber Paper HA Refractory Paper Insulation 1mm - 10mm Thickness
Leadsun ceramic fiber paper, is a lightweight refractory material processed from a blend of high purity alumina-silica fibers into a highly flexible, uniform sheet.
Ceramic fiber paper, has low shrinkage, good handling strength, and low thermal conductivity. it contains a small amount of organic binder for processing which makes it flexible, yet reduces off-gassing and odour during use. our product has a highly uniform structure due to its controlled basis weight and thickness, assuring homoaeneous thermal conductivity and a clean, smooth surface ideal for gasketing or sealing.
Ceramic fiber paper is completely free to asbestos and is designed to be an economic replacement for asbestos paper in most applications.
| Grade | Standard | High Pure | High Aluminium | Zirconium | |||
|---|---|---|---|---|---|---|---|
| Max. Temperature (C) | 1050 | 1150 | 1260 | 1430 | |||
| Shrinkage on Heating (%) | 800C×24h≤-3 | 1000C×24h≤-3 | 1280C×24h≤-3 | 1400C×24h≤-3 | |||
| Organic Content (%) | ≤5 | ≤5 | ≤5 | ≤5 | |||
| Thermal conductivity by mean temp. (W/m.k.) (250kg/m3) | 200℃ | 0.055～0.065 | 0.060～0.070 | ||||
| 400℃ | 0.110～0.120 | 0.105～0.125 | |||||
| 600℃ | 0.160～0.170 | 0.170～0.180 | |||||
| Chemical Composition (%) | AL2O3 | 43 | 47 | 55 | 38 | ||
| SiO2 | 53 | 51 | 44 | 44 | |||
| Fe2O3 + Ti2O3 | ≤1.2 | ≤0.3 | ≤0.3 | ≤0.2 | |||
| CaO + MgO | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.2 | |||
| NaO + KO2 | ≤0.5 | ≤0.3 | ≤0.3 | ≤0.2 | |||
| Density (kg/m3) | 170~230 | ||||||
- Easy to wrap, shape or cut
- Lightweight
- Low thermal conductivity; Low heat storage
- Good uniformity and smooth appearance
- Good flexibility and toughness and resistance to avulsion
- Good dielectric strength and sound insulation
- Excellent thermal shock resistance
- Excellent chemical satability and machining property
- Excellent corrosion resistance
- Die cut gaskets between castings in coke oven doors, blast furnace hot air piping, aluminium heat treating furnace, tuyeres and heat treat furnaces.
- Backup for brick and monolithic refractories in blast furnace stoves, piping, tundish, ladle, hot metal cars, trough etc.
- Mould wrapping for controlled cooling
- SEN isulation wraping
- Shield for welding & brazing operation
- Rotary klin back-up insulation
- Fabricated into tapout cones for Aluminium industry.
- Strips in bottom of ingot mould for sealing
- Expansion joint packing
- Induction coil liner Mould liner
- Silencer interleaf
- Ladle & tundish insulation
- Asbestos paper replacement
- Hot top linings
- Thermal and electrical insulation
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