Overview of materials for Linear Medium Density Polyethylene (LMDPE), Rotational Molded

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Overview of materials for Linear Medium Density Polyethylene (LMDPE), Rotational Molded
Categories:	Polymer; Thermoplastic; Polyethylene (PE); Medium Density (MDPE); Linear Medium Density Polyethylene (LMDPE), Rotational Molded
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Linear Medium Density Polyethylene (LMDPE), Rotational Molded". 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	Metric	English	Comments

Density	0.924 - 0.945 g/cc	0.0334 - 0.0341 lb/in³	Average value: 0.937 g/cc Grade Count:69
Environmental Stress Crack Resistance	10.0 - 1000 hour	10.0 - 1000 hour	Average value: 413 hour Grade Count:25
	>= 1000 hour @Temperature 50.0 - 50.0 °C	>= 1000 hour @Temperature 122 - 122 °F	Average value: 1000 hour Grade Count:2
Melt Flow	2.00 - 50.0 g/10 min	2.00 - 50.0 g/10 min	Average value: 6.22 g/10 min Grade Count:69

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	50.0 - 67.0	50.0 - 67.0	Average value: 56.5 Grade Count:54
Tensile Strength, Ultimate	11.7 - 1000 MPa	1700 - 145000 psi	Average value: 116 MPa Grade Count:10
Tensile Strength, Yield	11.0 - 22.0 MPa	1600 - 3190 psi	Average value: 18.1 MPa Grade Count:67
Elongation at Break	150 - 1000 %	150 - 1000 %	Average value: 556 % Grade Count:63
Elongation at Yield	10.0 - 13.0 %	10.0 - 13.0 %	Average value: 11.6 % Grade Count:7
Flexural Modulus	0.317 - 0.931 GPa	46.0 - 135 ksi	Average value: 0.633 GPa Grade Count:68
Falling Dart Impact	27.1164 - 65.0794 J @Temperature -40.0 - -40.0 °C	20.0000 - 48.0001 ft-lb @Temperature -40.0 - -40.0 °F	Average value: 46.1 J Grade Count:2
Dart Drop Total Energy	200 - 220 J/cm	0.375 - 0.412 ft-lb/mil	Average value: 208 J/cm Grade Count:4
	>= 200 J/cm @Temperature -20.0 - -20.0 °C	>= 0.375 ft-lb/mil @Temperature -4.00 - -4.00 °F	Average value: 200 J/cm Grade Count:1

Thermal Properties	Metric	English	Comments
Melting Point	125 - 128 °C	257 - 262 °F	Average value: 126 °C Grade Count:9
Deflection Temperature at 0.46 MPa (66 psi)	40.0 - 67.0 °C	104 - 153 °F	Average value: 54.1 °C Grade Count:14
Deflection Temperature at 1.8 MPa (264 psi)	37.0 - 40.0 °C	98.6 - 104 °F	Average value: 38.0 °C Grade Count:5
Vicat Softening Point	113 - 118 °C	235 - 244 °F	Average value: 115 °C Grade Count:4
Brittleness Temperature	-71.0 - -70.0 °C	-95.8 - -94.0 °F	Average value: -70.2 °C Grade Count:5

Optical Properties	Metric	English	Comments
Transmission, Visible	90.0 %	90.0 %	Average value: 90.0 % 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 view all the property values for this datasheet as they were originally entered into MatWeb.

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O3916 / 78274

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