Polymers: Data Sheet terms (Plastics)

Terms found on Data Sheets

•	Mechanical Properties
	-	Modulus of Elasticity (Young's Modulus) or, more commonly, Secant Modulus.
	-	Flexural Modulus, Tensile and Compressive Flexural Strengths.
	-	Ultimate Tensile Strength.
	-	Ultimate Tensile Strength at Yield.
	-	Yield Stress, Yield Strain.
	-	Nominal Strain at Break.
	-	Charpy Impact, Notched Impact Strength.
	-	Puncture Force, Energy.
	-	Lubricity (Coefficient of Friction).
	-	Coefficient of Thermal Expansion.
	-	Fatigue Properties.
	-	Creep Properties: These are often difficult to find.
	-	Density (specific gravity).
	-	Hygroscopic Degree (Water, Humidity Absorption).
	-	Mold Shrinkage (mm/mm or in/in).
	-	Fatigue strength (especially for living hinge design).
	-	Typical safety factors for tensile, flexural, and shear strength.
•	Thermal Properties
	-	Deflection Temperature : Vicat.
	-	Chemical Interaction.
	-	Flammability Properties.
	-	Melting Temperature.
	-	Glass Transition Temperature.
•	Electrical Properties
	-	Dielectric Constant.
	-	Relative Permittivity.
	-	Surface Resistivity.
	-	Volume Resistivity.
•	Rheological Properties
	-	Melt Volume Flow Rate.
	-	Mold Shrinkage.

Glossary

Materials » Alloys » Aluminum Alloy » Wrought » AA 7072

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