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General Properties of "CEPLA"
Mechanical Properties

property

unit

 Typical Value Test Method ASTM
CEPLA EXTRA CEPLA-G II
23ºc 260ºc 23ºc 300ºc 23ºc 260ºc
Tensile strength Mpa 116 41 82 24 73 30 D-638
Tensile Elongation % 5.0 6.0 2.0 1.5 3.0 2.6 D-638
Flexural Strength Mpa 161 59 101 41 80 36 D-790
Flexural Modules Gpa 4.2 2.1 8.0 3.7 4.9 2.6 D-790

Compressive

Stress(1%deformation)

 Mpa 26 - 40 - 24 - D-695
Compressive Modulus Gpa 2.6 - 4 - 2.3 - D-695
Izot Impact (notched, unnotched) J/min 77.5 956.5 - - 22.4 113.2 - - 21.4 162.1 - - D-265
Rockwell Hardness M scale 114 - 113 - 94 - D-785
Compressive Creep % 150ºc 0.83 0.86 1.16  
Density - 1.40 1.48 1.49 D-792
Thermal Properties
Property Unit Temperature（ºc） Typical Value Test Method ASTM
CEPLA EXTRA CEPLA-G II
Co efficiency of Linear Thermal Expansion ppm/ºc 20-100 36.2 25.0 - E-233
100-200 63.5 38.0 -
200-300 82.5 66.0 -
300-400 - 101.0 -
20-250 55.2 36.9 -
20-300 - - 63.0
20-400 - 59.2 -
Thermal Conductivity W/m・ºc 25 0.395 0.453 1.256 -
Specific Heat J/g・ºc 25 1.05 1.05 0.97 -
Thermal Decomposition Temperature ºc - 548 592 553 10% Reduced
Thermal Weight Reduction % - 0.20 1.7 0.15 0.88 0.50 2.10 300ºcｘ18H 400ºcｘ18H
Heat Distortion Temperature ºc - 360 500 370 D-648 （1.82MPa)
Electrical Properties
Property Unit Temperature（ºc） Typical Value Test Method ASTM
CEPLA EXTRA
Dielectric Constant(2mm Thick) KV/mm 23 18.0 19.0 D-149
Dielectric Constant(1KHz) - 23 3.59 3.58 D-150
Dissipation Factor - 23 0.0012 0.0015 D-150
Volume Resistivity Ω-cm 23 D-257
Surface Resistivity Ω 23 D-257
Arc Resistance Sec 23 124 122 D-495