Applicationt:
General
Production Description:
Expanded graphite sheet is made with pure expanded graphite. With high purity of 99% carbon content.
Expanded graphite sheet is made with pure expanded mineral graphite. Our expanded 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 Size
Thick (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