Physical Properties Metric English Comments Density 1.05 g/cc 0.0379 lb/in3 ISO 1183 Water Absorption 1.6 % 1.6 % Mechanical Properties Metric English Comments Tensile Strength, Yield 40.0 MPa 5800 psi ISO 527 Elongation at Break >= 50 % >= 50 % ISO 527 Elongation at Yield 5.0 % 5.0 % ISO 527 Tensile Modulus 1.30 GPa 189 ksi ISO 527 Charpy Impact Unnotched NB NB 23; ISO 179/1eU NB @Temperature -30.0 °C NB @Temperature -22.0 °F 0; ISO 179/1eU Charpy Impact, Notched 2.40 J/cm2 @Temperature 23.0 °C 11.4 ft-lb/in2 @Temperature 73.4 °F ISO 179/1eA 3.20 J/cm2 @Temperature -30.0 °C 15.2 ft-lb/in2 @Temperature -22.0 °F ISO 179/1eA Thermal Properties Metric English Comments Melting Point 190 °C 374 °F ISO 1183 Vicat Softening Point 154 °C @Load 5.10 kg 309 °F @Load 11.2 lb Method B; ISO 306 Glass Transition Temp, Tg 35.0 °C 95.0 °F IOS 1183