Thermoset Materials…

G10, FR4 G5, G9 G7 Grade X Phenolic Grade XX Phenolic Grade XXX Phenolic Grade C and CE Phenolic Grade L and LE Phenolic
Mechanical ASTM Test Method Glass Cloth Reinforced Epoxy Glass Cloth Reinforced Melamine Glass Cloth Reinforced Silicone Paper Phenolic Paper Phenolic Paper Phenolic Canvas Phenolic Linen Phenolic Units
Strength to Weight Ratio - - - - - - - - - ksi
Specific Gravity @73 F D792 1.82 1.9 1.68 1.36 1.34 1.32 1.35 1.34 -
Tensile Strength @73 F, (ult)/(yld) D638 40,000 37,000 23,000 20,000 16,000 15,000 9,500 12,500 psi
Tensile Modulus of Elasticity @73 F D638 - - - - - - - - psi
Tensile Elongation at Break @73 F D638 - - - - - - - - %
Flexural Strength @73 F D790 55,000 55,000 23,000 25,000 15,000 13,500 17,000 15,000 psi
Flexural Modulus of Elasticity @73 F D790 2,700,000 2,500,000 1,400,000 1,800,000 1,400,000 1,300,000 950,000 1,050,000 psi
Shear Strength @73 F D732 19,000 20,000 17,000 12,000 11,000 10,000 11,500 11,750 psi
Comprehensive Strength, (% Deformation) @73 F D695 60,000 (10) 70,000 (10) 45,000 (10) 36,000 (10) 34,000 (10) 32,000 (10) 37,000 (10) 37,000 (10) psi
Comprehensive Modulus of Elasticity @73 F D695 - - - - - - - - psi
Hardness, Rockwell, Scale as noted @73 F D785 M110 M120 M100 M110 M105 M110 M104 M105 -
Hardness, Durometer, Shore D @73 F D2240 - - - - - - - - -
Izod Impact, (Notched) @73 F D256 Type A 7.0 12.0 8.5 4.0 1.3 1.0 3.2/2.3 2.5/1.8 ft-lb/in of notch
Coefficient of Friction, (Dry vs Steel) Dynamic - - - - - - - - - -
Limiting PV, (with 4 to 1 factor of safety applied) - - - - - - - - - psi-ft/min
Thermal ASTM Test Method Glass Cloth Reinforced Epoxy Glass Cloth Reinforced Melamine Glass Cloth Reinforced Silicone Paper Phenolic Paper Phenolic Paper Phenolic Canvas Phenolic Linen Phenolic Units
Coefficient of Linear Thermal Expansion @73 F E-831 (TMA) - - - - - - - - in/in/F
Heat Deflection Temperature @264 psi D648 - - - - - - - - F
Tg-Glass transition termperature, (Amorphous) D3418 - - - - - - - - F
Melting Point, (VS=Vicat Softening Temp.) D3418 - 285 - - - - - - F
Continuous Service Temperature in Air, (Max.) - 285 - 465 285 285 285 265 265 F
Thermal Conductivity - - - - - - - - - BTU-in /
hr-ft2-F
Electric ASTM Test Method Glass Cloth Reinforced Epoxy Glass Cloth Reinforced Melamine Glass Cloth Reinforced Silicone Paper Phenolic Paper Phenolic Paper Phenolic Canvas Phenolic Linen Phenolic Units
Dielectric Strength, Short Term D149 400 350 350 500 500 470 150/360 150/360 Volts/mil
Volume Resistivity D257 - - - - - - - - ohm-cm
Dielectric Constant @10E6 Hz D150 5.2 7.1 4.2 6 5.5 5.3 -, 5.8 -, 5.8 -
Dissipation Factor @10E6 Hz D150 0.025 0.017 0.003 0.06 0.045 0.038 0.10, 0.055 0.10, 0.055 -
Flammability @3.1 mm unless noted UL94 V-0 V-0 V-0 HB HB HB HB - -
H2O ASTM Test Method Glass Cloth Reinforced Epoxy Glass Cloth Reinforced Melamine Glass Cloth Reinforced Silicone Paper Phenolic Paper Phenolic Paper Phenolic Canvas Phenolic Linen Phenolic Units
Water Absorption, Immersion, 24 hours D570(7) 0.10 0.40 0.15 1.10 0.55 0.45 1.2, 0.75 0.9, 0.7 % by weight
Water Absorption, Saturation D570(7) - - - - - - - - % by weight