Flexible Graphite Sheet
Flexible graphite sheet/roll is made of quality flake graphite which has been chemically treated and expanded at high temperature. It has excellent sealing properties, high temperature resistance, corrosion resistance, resistance to radiation, low creep relaxation rate and excellent flexibility. It is a basic material for making graphite composite plates, graphite strips, fillers and gaskets. Operating temperature: -196°C～600°C (in air) and -196°C～3000°C (non-oxidized medium). The pure graphite gasket can be directly used for the sealing of flanges, observation holes, water level gauges, box covers and other parts under low pressure conditions in the media such as acid, alkali, steam, various solvents and oils.
Product Specifications:
Thickness (mm) | Width (mm) | Length (m) | Density (g/cm3) | |
Rolls | Plates | 100～1524 | ≤910 | 0.4-1.5 |
0.1-1.6 | 0.1-3.2 | |||
Technical data sheet:
Item | DP1101 | DP1102 | DP1103 | DP1104 | DP1107 |
Carbon content (%) | ≥99.5 | ≥99 | ≥99 | ≥99 | ≥99 |
Sulphur content (PPM) | ≤200 | ≤500 | ≤1000 | ≤1200 | ≤1200 |
Chlorine content (PPM) | ≤30 | ≤50 | ≤50 | ≤50 | ≤50 |
Density deviation (g/cm3) | ±0.05 | ±0.05 | ±0.05 | ±0.05 | ±0.05 |
Thickness deviation (mm) | ±0.05 | ±0.05 | ±0.05 | ±0.05 | ±0.05 |
Tensile strength (MPa) | ≥4.5 | ≥4.5 | ≥4.0 | ≥4.0 | ≥4.0 |
Compression (%) | 35-55 | 35-55 | 35-55 | 35-55 | 35-55 |
Rebound rate (%) | ≥9 | ≥9 | ≥9 | ≥9 | ≥9 |
Loss (%) | ≤0.5 (450°C) | ≤1.0 (450°C) | ≤1.0 (450°C) | ≤1.0 (450°C) | ≤12 (670°C) |
Stress relaxation rate (%) | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 |
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