Property Terms Cheat Sheet

Coefficient of FrictionThe resistance of a material to sliding forces where, the higher the number, the higher the friction.
Coefficient of Linear
Thermal Expansion
Measure of growth of a material as temperature changes.
Compressive Modulus of ElasticityThe ratio of force to deformation as a material is being squeezed.
Compressive StrengthThe resistance of a material to being deformed under a squeeze load.
Dielectric ConstantThe ability of a material to store an electrical charge.
Dielectric StrengthThe amount of volts/mil required to cause an electrical "breakthrough".
Dimensional StabilityChange in height, width, and shape when exposed to changes in temperature.
Dissipation FactorThe ability of a material to dissipate an electrical charge.
Durometer HardnessThe ability of a non-metallic material to resist indentation using a Shore tester.
Flammability RatingThe ability of a material to harbor a flame.
Flexural Modulus of ElasticityThe ratio of force to deformation when a material is being flexed or bent.
Flexural StrengthThe resistance of a material to being bent or flexed.
Glass Transition Temperature(Tg)The temperature at which crystalline materials change from solid to a rubbery state.
Heat Deflection TemperatureThe temperature at which a material will bend a given distance when a given load is applied.
Izod ImpactThe ability of a material to resist fracture at a machined "V" notch when hit with a swinging
Melting PointThe temperature at which a materials change from a solid to a liquid.
PV or Limiting PVThe ratio of simultaneous load and speed in relation to wear.
Rockwell HardnessThe ability of a material to resist indentation using a Rockwell Tester.
Shear StrengthThe resistance of a material to being punched or sheared.
Specific GravityThe ratio of the weight of an object, to the weight of the same volume of water.
Surface ResistivityThe ability of a material to impede the flow of electricity across its surface.
Tensile ElongationThe % a material will stretch as it is pulled in a slow stretch until it breaks.
Tensile Modulus Of ElasticityThe ratio of force to deformation when a material is being slowly pulled apart.
Tensile StrengthThe resistance of a material to being slowly pulled apart.
Thermal ConductivityThe ability of a material to insulate changes in temperature.
Volume ResistivityThe ability of a material to impede the flow of electricity through itself.
Water AbsorptionThe ability of a material to absorb moisture.
Wear or "K" FactorThe ability to resist wear against steel.