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Expandable graphite yarn is made of flexible graphite and reinforcing material such as natural fiber, synthetic fiber, metal alloy filament etc. According to clients’ requirements, the reinforcing material can be cotton fiber, glass fiber and carbonized fiber etc. To adapt different use condition, such metal filament can be added during twining as nickel alloy filament, stainless steel filament and copper filament etc.
 

Advantages and Usage:

The product can be woven into different expandable graphite packing using special process technique. It is suitable for use in sealing at different media, temperature and pressure. In addition, corrosion inhibitor can be added to graphite yarn to produce seal assembly according to extremely corrosive environment and users’ requirements, so that it has more perfect performance.

Specifications of Expandable graphite yarn

Types
Specification (g/m)
Nominal diametert
(2mm)
Nominal diametert
(3mm)
Expanded graphite yarns reinforced with cotton
about 3g/m about 5g/m
Expanded graphite yarns reinforced with cotton and SS wire about 3g/m about 5g/m
Expanded graphite yarns reinforced with cotton and Inconel wire about 3g/m about 5g/m
Expanded graphite yarns reinforced with glass fiber about 3g/m about 5g/m
Expanded graphite yarns reinforced with cotton and aramid fiber about 3g/m about 5g/m
Expanded graphite yarns reinforced with glass fiber and SS wire about 3g/m about 5g/m

Remark: Reinforcing fiber, metal filament and their mixture of the product can be produced according to the customer's requirements.

Main Technical indices of Expandable graphite yarn

Item Main Technical indices
Density (graphite) 0.6~1.0 g/cm3
Service pressure 3~50 MPa
Working Temperature -200℃~600℃
Sulphur Content <1100 ppm
Chloride Content <50 ppm
Carbon Content(graphite) 90 %
Ash Content 2 %
Ignition 12 % (450℃,burnt 3 hours)
PH Value 0~14

Remark:The above technical indices could be adjusted according to the customer's requirements.



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