Polystyrene Data Sheet

||Polystyrene Data Sheet
Polystyrene Data Sheet2017-01-23T10:00:36+00:00

Polystyrene is a synthetic aromatic polymer made from the monomer styrene.

Mechanical ASTM Test Method Value Units
Strength to Weight Ratio - 3.8 ksi
Specific Gravity @73 F D792 1.04 -
Tensile Strength @73 F, (ult)/(yld) D638 4,000 (ult) psi
Tensile Modulus of Elasticity @73 F D638 - psi
Tensile Elongation at Break @73 F D638 50 %
Flexural Strength @73 F D790 - psi
Flexural Modulus of Elasticity @73 F D790 260,000 psi
Shear Strength @73 F D732 - psi
Comprehensive Strength, (% Deformation) @73 F D695 - psi
Comprehensive Modulus of Elasticity @73 F D695 - psi
Hardness, Rockwell, Scale as noted @73 F D785 (L56) -
Hardness, Durometer, Shore D @73 F D2240 - -
Izod Impact, (Notched) @73 F D256 Type A - 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 Value Units
Coefficient of Linear Thermal Expansion @73 F E-831 (TMA) - in/in/F
Heat Deflection Temperature @264 psi D648 183 F
Tg-Glass transition termperature, (Amorphous) D3418 - F
Melting Point, (VS=Vicat Softening Temp.) D3418 - F
Continuous Service Temperature in Air, (Max.) - - F
Thermal Conductivity - - BTU-in/hr-ft2-F
Electric ASTM Test Method Value Units
Dielectric Strength, Short Term D149 - Volts/mil
Volume Resistivity D257 - ohm-cm
Dielectric Constant @10E6 Hz D150 - -
Dissipation Factor @10E6 Hz D150 - -
Flammability @3.1 mm unless noted UL94 - -
H2O ASTM Test Method Value Units
Water Absorption, Immersion, 24 hours D570(7) - % by weight
Water Absorption, Saturation D570(7) - % by weight