Polypropylne

ASTM or UL TEST
PROPERTY
Unfilled
Physical
D792 Density (lb/in³) 0.033
N/A (g/cm³) 0.905
D570 Water Absorption, 24 hrs (%) < 0.01
Mechanical
D638 Tensile Strength (psi) 4,800
D638 Tensile Modulus (psi) 195,000
D638 Tensile Elongation at Break (%) 12
D790 Flexural Strength (psi) 7,000
D790 Flexural Modulus (psi) 180,000
D695 Compressive Strength (psi) 7,000
D695 Compressive Modulus (psi) ­
D785 Hardness, Shore D 92
D256 IZOD Notched Impact (ft-lb/in) 1.9
Thermal
D696 Coefficient of Linear Thermal Expansion (x 10^-5 in/in/˚F) 6.2
D648 Heat Deflection Temp (˚F/˚C) at 264 psi 125/ 52
D3418 Melting Temp (˚F/˚C) 327/ 164
N/A Max Operating Temp (˚F/˚C) 180/ 82
Thermal Conductivity
C177 (BTU-in/ft²-hr-˚F) 0.76-0.81
N/A (x 10^-4 cal/cm-sec-˚C) 2.6-2.8
UL94 Flammability HB
Electrical
D149 Dielectric Strength (V/mil) short time, 1/8" thick 500-600
D150 Dielectric Constant at 1 MHz 2.25
D150 Dissipation Factor at 1 MHz 0.0005-0.0018
D257 Volume Resistivity (ohm-cm) at 50% RH 8.5 x 10^14
D495 Arc Resistance (sec) 160