// SPEC · Ceramic Fiber
Polycrystalline Alumina Loose Bulk Fiber Al2O3 95% 1600°C
Al2O3 95% polycrystalline loose bulk alumina fiber for 1600°C packing; creep-resistant and chemically pure for glass furnace expansion seals, vacuum furnace hot zones, and high-temperature sintering furnaces.
// Key Features
- Polycrystalline alumina structure ensuring dimensional stability and creep resistance at 1600°C
- High chemical purity minimizing contamination in precision sintering and heat treatment processes
- Loose bulk form enabling controlled packing density in complex geometries and tight cavities
- Excellent resistance to thermal cycling stress with low linear shrinkage at maximum service temperature
// Technical Specifications
| Al2O3 (%) | 95 |
| Melting Point (°C) | 2050 |
| Fiber Diameter (μm) | 5–10 |
| Max Service Temp (°C) | 1600 |
| Tensile Strength (MPa) | 1.8 |
// Applications
Glass tank furnace crown expansion joint and perimeter seal fillingVacuum furnace hot zone thermal barrier and packing insulationElectric arc furnace electrode port seal and insulation packingHigh-temperature fiber module interstitial gap and joint fillingContinuous sintering furnace muffle and pusher tray insulation packing
// Quick Specs
Max Temperature1600°C
Thermal Conductivity0.25 W/(m·K) at 1000°C
Density40–100 kg/m³
StandardGB/T 17393
// Get Pricing
WhatsApp Us