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Supagraf® N7

Supagraf N7 is a high purity nickel foil laminated graphite sealing system.

  • General industry

Supagraf Laminated N7 is a sheet jointing of 98% pure exfoliated graphite with a bonded central layer of 13 μm thick nickel foil. Sheets thicker than 2.0 mm have two layers of metal foil and three of graphite.

  • Can be easily cut using basic hand tools
  • High grade graphite >98% carbon content
  • 13 μM nickel core reinforcement with adhesive laminating system
  • Suitable up to ASME Class 300 or PN40 piping applications
  • Suitable for high gasket stress applications

  • Piping flange gaskets, heat exchangers, boilers, reactors, vessels and OEM equipment
  • Compatible with HP steam, hydrocarbons and a wide range of chemicals within HPI and CPI industries
  • High pressures (up to 50 bar)
  • Suitable for ASME, EN, JIS, DIN flanges

  • Maximum temperature: +500°C (+932°F)
  • Minimum temperature: -196°C (-321°F)
  • Maximum pressure: 5 MPa/50 bar (750 psi)

  • Available in thicknesses from 1.0 mm to 3.0 mm
  • Sheet size of 1000 x 1000 mm gaskets can be produced up to a diameter of 1000 mm in one piece

The operational life span of graphite at high temperatures might be limited due to media or environmental influences. Please contact us for continuous exposure in oxidising environments above +450°C.

Related Downloads

Supagraf N7 datasheet

English pdf (490 KB) Download

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