Expanded Graphite Sheet

Expandedgraphite sheet is made with pure expanded mineral graphite.Ourexpanded graphite sheet has a high purity of 99% carbon content. Higher carbon content gives the flexible graphite better chemical resistance, better thermal conductivity, and better sealability. As gasket material, it is usually fabricated into Graphite Laminate, reinforced graphite sheet and widely used in fluid sealing applications: flange gasket, spiral wound gasket, heat exchanger gasket, etc. It can also be used as solid lubricant in metal stamping and forming applications, or as heat liner in industry furnaces and other heating devices. High Carbon content 99% Min.Contains no rubber or binder, 100% Asbestos free.Widely working temp. from -200 to +3300 in non-oxidizing.Chemistry resistance, oxidation resistant and corrosion resistant.Standard SizeThick (mm ) Width (mm) Length(mm) Sheets 0.2-6.0 1000, 1500 1000, 1500 Rolls 0.2-1.5 1000, 1500 30M,50M,70M,80M(Rolls) Technical Data Density 1.0g/cm3 Carbon Content 99% Ash Content ASTM C561 ≤1% Leachable Chloride ASTM D-512 50ppm Max. Sulphur Content ASTM C-816 1000ppm Max. Fluorides Content ASTM D-512 50ppm Max. Working Temperature -200 to +3300 Non-Oxidizing -200 to +500 Oxidizing -200 to +650 Steam Pressure 140bar Max. Tensile Strength 998psi Stress Relaxation DIN 52913 48N/mm2 Creep Relaxation ASTM F-38 <5% Compressibility ASTM F36A-66 40 45% Recovery ASTM F36A-66 ≥20% Ignition Loss Less than 1%(450/1Hr) Less than 20%(650/1Hr) Sealability ASTM F-37B fuel A <0.5ml/h Electrical Resistance 900 x 10-6 ohm cm parallel to surface 250, 000 x 10-6 ohm cm Perpendicular to surface Thermal Conductivity 120 Kcal/m Hr. parallel to surface 4Kcal/m Hr. Perpendicular to surface Thermal Expansion 5 x 10-6 / parallel to surface 2 x 10-6 / Perpendicular to surface Frictional Coefficient 0.149 PH 0-14