Properties
Plastic Properties Index
Every technical property tracked in PlasticsDB. Each page ranks all materials by that property so you can pick the strongest, stiffest, lightest, most heat-resistant polymer for your part.
physical properties
mechanical properties
Tensile Strength
Maximum stress a plastic can withstand while being stretched before breaking.
Unit: MPa
Young's Modulus
Stiffness of a plastic in its elastic deformation range.
Unit: GPa
Flexural Strength
Resistance of a plastic to bending forces.
Unit: MPa
Impact Strength (Izod)
Energy absorbed by a plastic during sudden impact.
Unit: J/m
Elongation at Break
How much a plastic can stretch before rupturing.
Unit: %
Hardness (Rockwell)
Surface hardness of a plastic on the Rockwell R or M scale.
Unit: Rockwell
thermal properties
Melting Point
Temperature at which a crystalline plastic transitions to a melt.
Unit: °C
Glass Transition Temperature
Temperature at which a polymer transitions from rigid glass to rubbery state.
Unit: °C
Heat Deflection Temperature
Temperature at which a plastic deforms under a specified load.
Unit: °C
Continuous Service Temperature
Maximum temperature a plastic can withstand long-term without significant property loss.
Unit: °C
Thermal Conductivity
How efficiently a plastic conducts heat.
Unit: W/m·K
Coefficient of Thermal Expansion
How much a plastic expands per degree of temperature rise.
Unit: ×10⁻⁶/K