Graphite Rigid Felt
Product Description
Zibo Gotrays' carbon graphite felt are widely applied as Insulation Lining materials for high temperature furnaces. There are soft and hard carbon graphite felt, classified into PAN based and rayon based types.
Applications of Carbon Graphite Felt Insulation Lining Materials:
u Vacuum furnaces
u Inert gas furnaces
u Heat treatment furnaces (like hardening, carbonization and brazing etc.)
u Hard alloys production
u Sintering applications
u Specialty ceramics production, like production of boron nitride, boron carbide, silicon cabride products etc.
u CVD/PVD Coating
Advantages of Zibo Gotrays Carbon Graphite Felt
v High temperature resistance: Up to 2300 ℃ heat treatment enables Zibo Gotrays' graphite felt withstand high temperature without slags falling off for long lifespan.
v Superior insulation performance
v High purity. Normal ash content of Zibo Gotrays' graphite felt is 500ppm, if higher purity is required by customers, we can do further purification to 10 ppm at best.
v Custom cut into sizes and shapes like round sleeves, discs etc.
Technical Properties of Carbon Graphite Felt
| Soft Graphite Felt Technical References | ||||
| Grade | GTR-SF-GX | GTR-SF-PAN2500 | GTR-SF-RY2500 | |
| Material | PAN Based | PAN Based | Rayon Based | |
| Bulk Density (g/cc) | 0.09-0.1 | 0.12～0.14 | 0.08-0.1 | |
| Carbon Content | 99.9% min. | 99% min. | 99% min. | |
| Thermal conductivity)W/Mk | 0.08-0.12 ((1150℃) | 0.08-0.14 ((1150℃) | 0.06-0.14 ((1150℃) | |
| Tensile Strength (Mpa) | 0.12 | 0.14 | 0.1 | |
| Crushing strength ( N/cm2) | 6-10 (at 10% compression) | 8-10 (at 10% compression) | 5-8 (at 10% compression) | |
| Ash Content (ppm) | 50 max | 50 max | 50 max | |
| Heat Treatment Temperature (℃) | 2300 | 2500 | 2500 | |
| Plate Standard Sizes | Length (mm) | 9,000-15,000 | 9,000-12,000 | 16,000-18,000 |
| Width (mm) | 1000, 1200, 1300 | 1000-1300 | 1000-1300 | |
| Height (mm) | 3, 5, 8. 10, 12 | 3, 5, 8. 10 | 3, 5, 8. 10 | |
| Max Working Temperature | in the air(℃) | 400 | 400 | 400 |
| Vacuum Condition (℃) | 2200 | 2200 | 2200 | |
| Inert Atmosphere (℃) | 2500 | 2500 | 2500 | |
| Technical References for Hard Composite Graphite Felt With Protection Layer | |||
| Grade | GTR-HFP-PAN2500 | GTR-HFC-PAN2500 | |
| Material | PAN Based | PAN Based | |
| Protection Layer | Graphite Paper | Graphite Cloth | |
| Bulk Density (g/cc) | 0.25-0.28 | 0.25～0.28 | |
| Carbon Content | 99% min. | 99% min. | |
| Thermal conductivity)W/Mk | 0.2-0.3 ((1150℃) | 0.2-0.3 ((1150℃) | |
| Flexural Strength (Mpa) | 1.3-3.0 | 1.75～3.2 | |
| Bending Strength (Mpa) | 1.0-2.5 | 1.5～3.0 | |
| Crushing strength ( Mpa) | 0.4 (at 5% compression) | 0.7 (at 5% compression) | |
| Ash Content (ppm) | 200 max | 200 max | |
| Heat Treatment Temperature (℃) | 2500 | 2500 | |
| Plate Standard Sizes | Length (mm) | 1000, 1500, 1800 | 1000, 1500, 1800 |
| Width (mm) | 1000, 1300 | 1000, 1300 | |
| Height (mm) | 20-250 | 20-250 | |
| Tube Standard Sizes | Diameter (mm) | Φ250-1600 | Φ250-1600 |
| Wall Thickness (mm) | 30-130 | 30-130 | |
| Height (mm) | 300-3000 | 300-3000 | |
| Max Working Temperature | in the air(℃) | 400 | 400 |
| Vacuum Condition (℃) | 2200 | 2200 | |
| Inert Atmosphere (℃) | 3200 | 3200 | |
| Carbon Felt Technical References | |||
| Grade | GTR-CF-RYN1200 | GTR-CF-PAN1200 | |
| Material | RAYON Based | PAN Based | |
| Bulk Density (g/cc) | 0.1～0.12 | 0.14～0.17 | |
| Carbon Content | 98.5% min. | 98.5% min. | |
| Thermal conductivity)W/Mk | 0.08-0.15 ((1150℃) | 0.12-0.18 ((1150℃) | |
| Tensile Strength (Mpa) | 0.13 | 0.15 | |
| Ash Content (ppm) | 500 max | 500 max | |
| Heat Treatment Temperature (℃) | 1200 | 1200 | |
| Standard Sizes | Length (mm) | 16,000-18,000 | 9,000-12,000 |
| Width (mm) | 1000-1300 | 1000-1300 | |
| Height (mm) | 3, 5, 8. 10 | 3, 5, 8. 10 | |
| Max Working Temperature | in the air(℃) | 400 | 400 |
| Vacuum Condition (℃) | 1500 | 1500 | |
| Inert Atmosphere (℃) | 1800 | 1800 | |
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