Reinforced Flexible Graphite Gasket Material 99% C Content Creep Resistant

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
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Product Details

Reinforced Flexible Graphite Gasket Material

Products Description

Material Composition & Production
Reinforced flexible graphite gasket material is manufactured through a multi-stage process: Natural graphite flakes undergo chemical intercalation and thermal expansion (1000-1200°C), generating expanded graphite with a bulk density of 3.2 kg/m³. This base material is then mechanically reinforced with stainless steel mesh (304/316L) or perforated alloy foils through high-pressure lamination, creating a hybrid structure that combines graphite's inherent properties with metallic reinforcement.

Structural Advantages

  • Enhanced Tensile Strength: 15-25 MPa vs. 5-8 MPa for non-reinforced grades

  • Directional Compression Stability: ≤5% thickness variation under 50 MPa cyclic loading

  • Pressure Adaptability: Effective sealing from vacuum (10⁻³ Pa) to 40 MPa systems

  • Thermal Bridging: Reduced heat transfer across sealed interfaces (Thermal conductivity: 5-20 W/m·K adjustable)

Operational Performance

  • Temperature Range: -240°C (cryogenic) to +850°C (oxidizing environments)

  • Chemical Compatibility: Resists 98% concentrated H₂SO₄, 50% NaOH, and hydrocarbon fluids

  • Creep Resistance: <0.2% permanent deformation after 2000h at 300°C/25 MPa

Industrial Applications

  1. High-Pressure Energy Systems:

    • Oil & gas wellhead sealing (API 6A/ISO 10423 compliant)

    • Hydrogen compressor valve stack gaskets

  2. Heavy Industrial Machinery:

    • Turbine flange seals for power generation

    • Hydraulic press platen insulation

  3. Transportation Engineering:

    • Fuel cell bipolar plate sealing in hydrogen vehicles

    • High-speed train brake system thermal barriers

  4. Process Industry:

    • Reactor manway seals in petrochemical plants

    • Pharmaceutical autoclave door gaskets (FDA 21 CFR 177.2600)

Technical Specifications

ParameterReinforced CoilReinforced Plate
Core Thickness0.3-1.2mm1.5-6.0mm
ReinforcementSS304/Inconel meshTitanium perforated foil
Working Pressure≤25 MPa≤40 MPa
Density1.1-1.8 g/cm³1.5-2.2 g/cm³
Standard Width1200/1500mm1000/1500/2000mm

Customization Options

  • Multi-layer staggered reinforcement patterns

  • Edge welding protection for corrosive media

  • Pre-cut gaskets with alignment dowel holes

  • Fire-safe certification (API 607/ISO 10497)

This engineered material achieves 50% longer service life than conventional graphite gaskets in pulsating pressure conditions, validated through ASTM F586 5000-cycle test protocols. Its hybrid design enables simultaneous sealing and structural load-bearing capabilities, particularly critical in modular equipment and compact flange configurations.

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 Reinforced Flexible Graphite Gasket Material 99% C Content Creep Resistant supplier

Reinforced Flexible Graphite Gasket Material 99% C Content Creep Resistant

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