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James Walker® Gaskets & Jointings > Supagraf® expanded graphite



  Supagraf® expanded graphite
Supagraf® Laminated Jointing S10
 
DESCRIPTION
Sheet jointing of 98% pure exfoliated graphite with a bonded central layer of 50μm thick stainless steel foil. Sheets thicker than 2.0mm have two layers of metal foil and three of graphite.

PRIME FEATURES
• Extra strength for ease of handling and fitting.
• Excellent sealing integrity.
• Can be cut with hand tools.
SPECIFICATIONS
S10 grade is BAM approved for use with liquid and gaseous oxygen in flange connections of copper, copper alloys or steel at operating conditions up to 130bar and 200°C.
 
PHYSICAL PROPERTIES
(Typical values for 2.0mm thick sheet.)
 Density (graphite) Mg/m3    1.0   
 Compressibility, %    41    (ASTM F36A)  
 Recovery, %    22    (ASTM F36A)  
 Leachable chloride ion content, ppm    <50   
 
SERVICE CAPABILITIES
 Maximum temperature (oxidising media)    400°C  
 Maximum temperature (*inert/reducing media)    700°C  
 Minimum temperature    –200°C  
(*Ensure that temperatures above 400°C on atmosphere side of flange do not cause gasket to oxidise inwards from the outside edge.)
 
HOW SUPPLIED
Precision cut gaskets to any shape, size and quantity. In sheets 1.0m x 1.0m. Thicknesses: 1.0mm, 1.5mm, 2.0mm, 3.0mm.