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Product Description
SSF 321 sheet is manufactured from plain SS sheet sandwich between two layers of flexible pure graphite sheet. The manufacturing process is mechanical without incorporation of any additives on bonding materials. SS sheet insert graphite gaskets are suitable for metallic, glass, enamel flanges and are designed for trouble-free change over which ultimately reduces maintenance cost. Dimensionally stable under extreme pressure surge and suitable for cryogenic services.
Quick Specifications
Temperature Range
Min. -200°C to Max. +650°C
pH Range
0-14
Pressure
500 BAR
Thickness
1mm to 6mm
Technical Data
Specifications
Temperature RangeMin. -200°C to Max. +650°C
pH Range0-14
Pressure500 BAR
Thickness1mm to 6mm
Carbon Content99% to 99.9%
Sulphur ContentLess than 500ppm
Chloride ContentLess than 30ppm
Ash ContentLess than 1%
Additional Technical Data
MaterialPlain SS foil sandwiched between flexible pure graphite sheets
Manufacturing ProcessMechanical process without additives or bonding materials
Reinforcement Thickness0.05mm ~ 0.1mm
Sheet Tolerance1mm ~ 6mm (Thickness)
Tolerance on Density±0.05g/cc
Tolerance on Thickness±0.1mm ~ 0.25
Bulk Density1.1gms/cc to 1.4gms/cc
Temperature - Reducing-200 to 3315°C
Temperature - Oxidizing+600°C
Temperature - Steam+650°C
Pressure RangeVacuum 28Hg to 300 BAR
Benefits
Key Features
SS foil reinforcement increases mechanical strength
Chemical properties of flexible pure graphite remain intact
Resistant to almost all non-chemicals
Good compressibility (35-40%) and recovery (15-18%)
Seals perfectly with enhanced pressure capability
Does not age or creep under hot or cold working conditions
Dimensionally stable under extreme pressure
Enhanced temperature range up to +650°C in steam
Low permeability (0.40 nitrogen cc/min)
Superior m-factor (2.8) and y-factor (4700 psi)
Use Cases
Applications
Pipe flange gasket applications
Valve bonnet sealing systems
Heat exchanger gasket systems
Metallic, glass-lined, and enamel flange assemblies
Refinery and petrochemical process plants
Power generation facilities
Steam distribution systems
Hydrocarbon processing systems
Cryogenic process applications
Chemical processing industries
Fuel and lubricating oil systems
Gas and fluid handling equipment
Additional Support?
Contact our sales team for pricing, availability, and technical specifications.