Rayon Graphite Felt is a high-purity insulation material engineered from regenerated cellulose (viscose) fibers. Specifically designed for extreme-temperature environments, it offers superior thermal barrier performance, making it ideal for high-purity vacuum and inert-atmosphere furnaces.
packing and delivery
Carton package
Product feature
- Exceptionally low thermal conductivity for optimal heat containment
- High-temperature stability (usable above 2500°C)
- Very low bulk density, resulting in a lightweight structure
- High purity with minimal ash content
- Good flexibility and ease of custom shaping
- Excellent chemical and oxidation resistance
Product advantage
- Maximizes energy efficiency by minimizing heat loss
- Provides long-term thermal stability and dimensional integrity
- Reduces system weight and simplifies installation
- Ensures process purity in sensitive applications (e.g., crystal growth)
- Offers excellent durability and a long service life
Product application
Primary insulation in Czochralski (CZ) furnaces for monocrystalline silicon and sapphire growth
Thermal management in vacuum sintering furnaces and powder metallurgy
High-temperature sealing and gasketing in chemical and energy processing
Heat shielding in aerospace and advanced industrial heating systems
technical specification
|
Bulk density |
0.1 g/cm³ |
|
Tensile strength |
≥0.14 MPa |
|
Carbon content |
≥99.9 |
|
Thermal conductivity |
0.1~0.25 W/(m.k)(1150℃) |
|
Ash content |
Standard ≤200 ppm |
|
Treatment temperature |
≥2200 ℃ |
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