used for making Graphite Packing ---expanded graph

Expanded graphite sheet&roll are selected from the high purity natural flake graphite .They are made through the advanced chemical treatment and mech anical procedure etc.This products enhance excellent properties such as thermal steble,with stand high and low temperature,corrosion,resistance.It has been widely used for die formed packing rings and various kinds of gaskets.It is a basic material for making different kinds of graphite seals.Specifications can be ordere on customer’s demands Size of sheet density(g/cm3)length(mm)width(mm)thickness(mm)0.7-1.2≤1100≤11000.2-3.0 Size of roll density(g/cm3)length(mm)width(mm)thickness(mm)0.7-1.24.5-300000≤11000.2-1.5 Service range temperaturePressure MPaIn oxidizing atmosphereIn non-oxidizing atmospherepressurePH range240-450240-3500300-14 Main properties Tolerance of density (g/cm3)±0.03±0.05Tolerance of thickness(g/cm3)±0.03±0.04Carbon content (%)≥99≥97Tensile strength (MPa)≥4.8≥4.5Compressibility (%)≥40≥40Recovery (%)≥20≥15Sulphur content(ppm)40-9001500Chorine content(ppm)2530Stress relaxation (%)1010Ignition loss (%)0.50.1