Polystyrene (PS)

Compressive Yield Strength 13100 psi
CTE, linear 20°C 44.3 µin/in-°F
Deflection Temperature at 1.8 MPa (264 psi) 181 °F
Density 0.0379 lb/in³
Dielectric Constant 2.5
Dielectric Strength 1550 kV/in
Electrical Resistivity 1.00E+16 ohm-cm
Elongation at Break 6.9 %
Flexural Yield Strength 12200 psi
Hardness, Rockwell R 120
Izod Impact, Notched 0.656 ft-lb/in
Izod Impact, Unnotched 2.06 ft-lb
Max Service Temperature, Air 177 °F
Melt Flow 9 g/10 min
Modulus of Elasticity 435 ksi
Specific Heat Capacity 0.43 BTU/lb-°F
Tensile Strength, Ultimate 6510 psi
Tensile Strength, Yield 6370 psi
Thermal Conductivity 0.972 BTU-in/hr-ft²-°F
Water Absorption 0.088 %