High Density Flexible Graphite Sealing Material

Brand Name:CLINGSEAL
Certification:ISO,SGS
Model Number:CSG80
Minimum Order Quantity:500kg
Delivery Time:20 days
Payment Terms:T/T, Western Union, MoneyGram
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Location: Anqing Anhui China
Address: Economic development zone, AnQing, Anhui, China
Supplier`s last login times: within 2 hours
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Products Description

Flexible Graphite Material (Expanded Graphite Sheet)

Composed of natural graphite flakes processed through chemical treatment and thermal expansion, flexible graphite material—also referred to as expanded graphite foil or graphite tape—is engineered by exposing raw graphite to elevated temperatures. This process creates exfoliated graphite structures with an ultralow bulk density of approximately 3 kg/m³. These expanded graphite particles are subsequently compressed into rolls or sheets without binders or additives, ensuring exceptional purity and performance characteristics.

Key Properties

  • Corrosion & Radiation Resistance: Suitable for harsh chemical and nuclear environments.

  • Extreme Temperature Tolerance: Stable performance across a broad thermal range (-200°C to +3000°C).

  • Self-Lubrication & Sealing Efficiency: Inherent lubricity and impermeability for reliable low-pressure sealing.

  • Compressive Resilience: Maintains structural integrity under repeated compression cycles.

Applications

  1. Sealing Solutions: Serves as a primary material for manufacturing graphite packing rings and composite gaskets.

  2. Composite Materials: Combined with metal sheets to create multi-layered sealing plates, customizable into complex gasket geometries.

  3. Direct Industrial Use: Processed into thick sheets for crafting low-pressure seals or high-temperature insulation pads in industrial equipment.

Standard Specifications

  • Dimensions:

    • Width: 1000mm or 1500mm

    • Coil Length: 30m, 50m, or 80m

    • Sheet Thickness: 0.15–1.0mm (coils), 1.0–5.0mm (plates)

  • Density: Ranging from 0.8 to 1.25 g/cm³

  • Customization: Non-standard sizes, densities, or hybrid material configurations available upon request.

ItemStandard Value
C concentration99%
S concentration<1000ppm
chlorine concentration<45ppm
tensile strength4.5MPa
compressibility>40%
recovery>10%
Temperature-200ºC-600ºC
Pressure20MPa
Terence of Thickness-0.04mm~+0.04mm
Terence of DimensionIn accordance with your Gasket size
Terence of Density-0.06~g/cm3+0.06gcm3

Grades Separate :JB/T53392-1999
Mechanical DataQualified productTop GradeSuperior Grade
Density Tolerance
g/cm3
<0.4±0.10
±0.05
0.4±0.07
Tensile Strength MPa3.24.55.0
Compression Ratio %35~55
Rebound Rate %91112
Stress relaxation rate %10
Ash %6.03.01.0
Heat loss on ignation %450ºC1.00.5
600ºC2015

Sulphur content
1500ppm1000ppm600ppm

Chloride content
100ppm50ppm20ppm


China High Density Flexible Graphite Sealing Material supplier

High Density Flexible Graphite Sealing Material

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