Expanded Graphite Sheet

* Brief:

HEROOS-440 Description:Grafoil is Selected from the high purity natural flake graphite. They are made through the advanced chemical treatment and mechanical procedure without fibers, binders or other additives. It offer excellent sealing capabilities under extreme conditions with a longer life and less maintenance.Nuclear Style grade:440N

APPLICATION: Made for packing rings and various kinds of gaskets. Cut into strip for filler of spiral wound gasket - Style Used widely in chemical, automotive and pump, valve industries. As a superior replacement for asbestos, new more applications are Being identified daily. Temperature: -240~500°C under oxidizing environment -240~3500°C under non-oxidizing environment PH Range: 0 - 14 PARAMETER:

Item	Nuclear grade	Industrial grade
Tolerance of Density g/cm3	±0.05	±0.06
Carbon Content ≥%	99.5	98/99
Tensile strength ≥Mpa	5	4
Compressibility ≥%	30	30
Recovery ≥%	15	15
Sulphur Content ≤%	700	1200
Chlorine Content ≤%	25	50
Stress relaxation rate %	10	10
Lgnition loss ≤%	0.5	2.0

DIMENSIONS:

Item	Sheets	Rolls
Density g/cm3	1.0	1.0
Length	1000, 1500mm	30~100m
Width mm	5~1000, 1500	3~1000~1500
Thickness mm	0.5~3	0.2~1.1

Special density, thickness, shape or grade available on request.