Abbott Plastics: Materials -HDPE & Polypro


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Typical Properties of HDPE & Polypropylene

Property	Test Method	HDPE	Polypropylene
*Mechanical Properties*
Density (g/cc)	ASTM D792	0.963	0.91
Tensile Strength (p.s.i.)	ASTM D638	4,500	4,900
Elongation at Break (%)	ASTM D638	250	50-250
Flexural Modulus (p.s.i.)	ASTM D790	233,000	210,000
Izod Impact (ft-lbs/in²)	ASTM D256	3.2	1.5
Rockwell Hardness	ASTM D785	65	95
*Thermal Properties*
Heat Distortion at 66 psi (°F)	ASTM D648	175	210
Heat Distortion at 264 psi (°F)	ASTM D648	118	120
Coefficient of Linear Thermal Expansion (in/in/°C)	ASTM D696	0.00007	0.000145
*Electrical Properties*
Volume Resistivity (Ohm-cm)	ASTM D257	>6x10¹⁶	>10¹⁶
*Water Absorption Rates*
Water Absorption -24 hrs.(%)	ASTM D570	0.01	-

NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets.

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