Thermoset Materials…

  • G5 corresponds with MIL-I- 24768/8
  • G7 corresponds with MIL-I-24768/17
  • G9 corresponds with MIL-I-24768/1
  • FR4 corresponds t0 MIL-I-24768/27 and MIL-P-18177 GEE-F
  • G10 corresponds to MIL-I-24768/2 and MIL-P-18177 GEE
  • FR5 corresponds to MIL-I-24768/28
  • G11 corresponds with MIL-I-24768/3 and MIL-P-18177 GEB
  • Grade X Phenolic corresponds to MIL-I-24768/12
  • Grade XX Phenolic corresponds to MIL-I-24768/11
  • Grade XXX Phenolic corresponds to MIL-I-24768/10
  • Grade C Phenolic corresponds to MIL-I-24768/16 and MIL-P-15035 (FBM)
  • Grade CE Phenolic corresponds to MIL-I-24768/14 and MIL-P-15035 (FBG)
  • Grade L Phenolic corresponds to MIL-I-24768/15 and MIL-P-15035 (FBI)
  • Grade LE Phenolic corresponds to MIL-I-24768/13 and MIL-P 15035 (FBE)
G10, FR4 (MIL-I-24768/2, MIL-I-24768/27, MIL-P-18177 GEE, MIL-P 18177 GEE-F) G5, G9 (MIL-I-24768/5, MIL-I-24768/1) G7 (MIL-I-24768/17) G11, FR5 (MIL-I-24768/3, MIL-I-24768/28, MIL-P-18177 GEB, MIL-P-18177 GEB-F) Grade X Phenolic (MIL-I-24768/12) Grade XX Phenolic (MIL-I-24768/11) Grade XXX Phenolic (MIL-I-24768/10) Grade C and CE Phenolic (MIL-I-24768/16, MIL-P-15035 FBM, MIL-I-24768/14, MIL-P-15035 FBG) Grade L and LE Phenolic (MIL-I-24768/15, MIL-P-15035 FBI, MIL-I-24768/13, MIL-P-15035 FBE)
Mechanical ASTM Test Method Glass Cloth Reinforced Epoxy G10 Glass Cloth Reinforced Melamine Glass Cloth Reinforced Silicone Glass Cloth Reinforced Epoxy G11 Paper Phenolic X Paper Phenolic XX Paper Phenolic XXX Canvas Phenolic Linen Phenolic Units
Strength to Weight Ratio - - - - - - - - - - ksi
Specific Gravity @73 F D792 1.82 1.9 1.68 1.85 1.36 1.34 1.32 1.35 1.34 -
Tensile Strength @73 F, (ult)/(yld) D638 40,000 37,000 23,000 43,000 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 75,000 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 2,700,000 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 19,000 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) 63,000 (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 M115 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 12.0 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 G10 Glass Cloth Reinforced Melamine Glass Cloth Reinforced Silicone Glass Cloth Reinforced Epoxy G11 Paper Phenolic X Paper Phenolic XX Paper Phenolic XXX 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 - 465 285 285 285 285 265 265 F
Thermal Conductivity - - - - 2.0 - - - - - BTU-in /
hr-ft2-C
Electric ASTM Test Method Glass Cloth Reinforced Epoxy G10 Glass Cloth Reinforced Melamine Glass Cloth Reinforced Silicone Glass Cloth Reinforced Epoxy G11 Paper Phenolic X Paper Phenolic XX Paper Phenolic XXX Canvas Phenolic Linen Phenolic Units
Dielectric Strength, Short Term D149 400 350 350 900 500 500 470 150/360 150/360 Volts/mil
Volume Resistivity D257 - - - - - - - - - ohm-cm
Dielectric Constant @10E6 Hz D150 5.2 7.1 4.2 4.5 6 5.5 5.3 -, 5.8 -, 5.8 -
Dissipation Factor @10E6 Hz D150 0.025 0.017 0.003 0.022 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 HB - -
H2O ASTM Test Method Glass Cloth Reinforced Epoxy G10 Glass Cloth Reinforced Melamine Glass Cloth Reinforced Silicone Glass Cloth Reinforced Epoxy G11 Paper Phenolic X Paper Phenolic XX Paper Phenolic XXX Canvas Phenolic Linen Phenolic Units
Water Absorption, Immersion, 24 hours D570(7) 0.10 0.40 0.15 0.10 1.10 0.55 0.45 1.2, 0.75 0.9, 0.7 % by weight
Water Absorption, Saturation D570(7) - - - - - - - - - % by weight