anim_logo.gif (2572 bytes) Thermodynamics Style 7000
Pure Expanded Flexible Mineral Graphite Plain Homogeneous Gasketing Sheets with Inhibitor
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As frontiers of technology are pushed forward in a wide variety oof industries, parallel advances must be made in sealing techniques to meet new conditions and more stringent performance demands. The resources of Thermodynamics and the development of Style 7000 combine the best service with a sophisticated approach to the sealing of flanges which bring many cost-effective benefits to the user.

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TECHNICAL DATA
Purity/sulphur content max. ASTM C-816 98% / 700ppm
Bulk density ASTM C-559 1.0 to 1.1 g/cc
Ash content ASTM C-561 Less than 0.5%
Leachable chloride/fluorides 50ppm max. ASTM D-512
Temperature range -200°C to 3000°C Non-oxidizing
  -200°C to +500°C Oxidizing
  -200°C to +650°C Steam
Tensile strength/stress relaxation 998Psi / DIN 52913 - 48N/mm2
Shore hardness (D) / Creep relaxation 30 / At 100°C ASTM F-38 < 5%
Sealability, ml/h Fuel A ASTM F-37B < 0.2 to 0.5
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°C parallel to surface
  4 Kcal/m. Hr°C perpendicular to surface
Coefficient of Thermal Expansion 5 x 10-6 / °C parallel to surface
  2 x 10-6 / °C perpendicular to surface
Compressive strength more than 800kg/cm2
Ignition loss / operating pressure less than 1% / 140 bar (2058p.s.i)
Resilient rate / density more than 30% / 0.7 to 1.1 g/cu.cm
Compressibility Strength ASTM F36A-66 40 to 45%
Recovery ASTM F36A-66 20 to 40%
ASTM "m" factor 2
ASTM "y" stress 1500 Psi
Sliding-frictional coefficient 0.149
Permeability coefficient for air less than 2 x 10-5 cm2/sec perpendicular to surface
pH Range less than 2 x 10-5 cm2/sec perpendicular to surface
Oxidation rate exposed edge at 500°C 0.03 to 0.4 g/cm2/h
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