Overview of materials for High Density Polyethylene (HDPE), Rotational Molding Grade

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Overview of materials for High Density Polyethylene (HDPE), Rotational Molding Grade
Categories:	Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE); High Density Polyethylene (HDPE), Rotational Molding Grade
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "High Density Polyethylene (HDPE), Rotational Molding Grade". Each property range of values reported is minimum and maximum values of appropriate MatWeb entries. The comments report the average value, and number of data points used to calculate the average. The values are not necessarily typical of any specific grade, especially less common values and those that can be most affected by additives or processing methods.
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Physical Properties	Original Value	Comments

Density	0.939 - 0.952 g/cc	Average value: 0.945 g/cc Grade Count:30
Environmental Stress Crack Resistance	8.00 - 1000 hour	Average value: 419 hour Grade Count:18
	42.0 - 42.0 hour @Temperature 50.0 - 50.0 °C	Average value: 863 hour Grade Count:6
Melt Flow	0.0500 - 6.00 g/10 min	Average value: 3.01 g/10 min Grade Count:30

Mechanical Properties	Original Value	Comments
Hardness, Shore D	63.0 - 67.0	Average value: 65.0 Grade Count:11
Tensile Strength, Yield	17.9 - 26.6 MPa	Average value: 22.2 MPa Grade Count:34
Elongation at Break	350 - 1100 %	Average value: 599 % Grade Count:23
Elongation at Yield	9.00 - 20.0 %	Average value: 16.2 % Grade Count:14
Flexural Modulus	0.600 - 1.15 GPa	Average value: 0.893 GPa Grade Count:33
Izod Impact, Notched	2.29577 - 2.40255 J/cm @Temperature -40.0 - -40.0 °C	Average value: 2.32 J/cm Grade Count:4
Tensile Impact Strength	120 - 120 kJ/m² @Temperature -30.0 - -30.0 °C	Average value: 120 kJ/m² Grade Count:1
Dart Drop Total Energy	>= 200 J/cm @Temperature -20.0 - -20.0 °C	Average value: 200 J/cm Grade Count:1

Thermal Properties	Original Value	Comments
Melting Point	126 - 133 °C	Average value: 130 °C Grade Count:18
Deflection Temperature at 0.46 MPa (66 psi)	43.0 - 142 °C	Average value: 77.6 °C Grade Count:20
Deflection Temperature at 1.8 MPa (264 psi)	41.0 - 99.0 °C	Average value: 57.5 °C Grade Count:15
Heat Distortion Temperature	43.0 - 63.0 °C	Average value: 52.8 °C Grade Count:4

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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