Polyurethane Rubber (AU, EU)
AU is a thermoset elastomer or rubber material. It has the highest tensile strength and a fairly high ductility among rubber materials. The graph bars on the material properties cards below compare AU to other rubber materials (top) and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elongation at Break
580 %
Tensile Strength: Ultimate (UTS)
39 MPa 5.6 x 103 psi
Thermal Properties
Glass Transition Temperature
-50 °C -58 °F
Maximum Temperature: Autoignition
360 °C 670 °F
Maximum Temperature: Decomposition
330 °C 620 °F
Maximum Temperature: Mechanical
90 °C 190 °F
Specific Heat Capacity
1760 J/kg-K 0.42 BTU/lb-°F
Thermal Conductivity
0.19 W/m-K 0.11 BTU/h-ft-°F
Followup Questions
Further Reading
Polyurethane Elastomers: From Morphology to Mechanical Aspects, Cristina Prisacariu, 2011
Polyurethanes: Science, Technology, Markets, and Trends, Mark F. Sonnenschein, 2015
Rubber Formulary, The, Peter A. Ciullo and Norman Hewitt, 1999