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

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Overview of materials for High Density Polyethylene (HDPE), Blow Molding Grade
Categories:	Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE); High Density Polyethylene (HDPE), Blow Molding Grade
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "High Density Polyethylene (HDPE), Blow 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	Metric	English	Comments

Density	0.935 - 1.06 g/cc	0.0338 - 0.0383 lb/in³	Average value: 0.954 g/cc Grade Count:393
Water Absorption	0.0100 %	0.0100 %	Average value: 0.0100 % Grade Count:6
Moisture Absorption at Equilibrium	0.0100 - 0.0500 %	0.0100 - 0.0500 %	Average value: 0.0167 % Grade Count:6
Environmental Stress Crack Resistance	3.00 - 5000 hour	3.00 - 5000 hour	Average value: 347 hour Grade Count:232
	10.0 - 1000 hour @Temperature 50.0 - 80.0 °C	10.0 - 1000 hour @Temperature 122 - 176 °F	Average value: 276 hour Grade Count:45
	13.0 - 530 hour @Temperature 40.0 - 50.0 °C	13.0 - 530 hour @Temperature 104 - 122 °F	Average value: 276 hour Grade Count:16
	13.0 - 530 hour @Thickness 0.300 - 2.00 mm	13.0 - 530 hour @Thickness 0.0118 - 0.0787 in	Average value: 276 hour Grade Count:16
Thermal Stress Crack Resistance	250 hour	250 hour	Average value: 250 hour Grade Count:4
Oxidative Induction Time (OIT)	7.00 - 105 min @Temperature 200 - 200 °C	7.00 - 105 min @Temperature 392 - 392 °F	Average value: 41.9 min Grade Count:27
Linear Mold Shrinkage	0.0150 - 0.0500 cm/cm	0.0150 - 0.0500 in/in	Average value: 0.0219 cm/cm Grade Count:4
Melt Flow	0.0100 - 57.0 g/10 min	0.0100 - 57.0 g/10 min	Average value: 6.45 g/10 min Grade Count:394
Ash	0.0300 - 0.0600 %	0.0300 - 0.0600 %	Average value: 0.0467 % Grade Count:3

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	50.0 - 79.0	50.0 - 79.0	Average value: 64.3 Grade Count:167
Ball Indentation Hardness	44.0 - 63.0 MPa	6380 - 9140 psi	Average value: 52.0 MPa Grade Count:7
Tensile Strength, Ultimate	11.7 - 44.0 MPa	1700 - 6380 psi	Average value: 29.3 MPa Grade Count:130
Film Tensile Strength at Yield, MD	20.0 - 27.0 MPa	2900 - 3920 psi	Average value: 24.7 MPa Grade Count:11
Film Tensile Strength at Yield, TD	19.0 - 30.0 MPa	2760 - 4350 psi	Average value: 22.7 MPa Grade Count:12
Tensile Strength, Yield	15.2 - 43.0 MPa	2200 - 6240 psi	Average value: 27.3 MPa Grade Count:326
Film Elongation at Break, MD	240 - 810 %	240 - 810 %	Average value: 560 % Grade Count:15
Film Elongation at Break, TD	350 - 980 %	350 - 980 %	Average value: 625 % Grade Count:15
Elongation at Break	7.00 - 2000 %	7.00 - 2000 %	Average value: 708 % Grade Count:274
Elongation at Yield	4.00 - 13.0 %	4.00 - 13.0 %	Average value: 9.04 % Grade Count:91
Modulus of Elasticity	0.650 - 4.30 GPa	94.3 - 624 ksi	Average value: 1.30 GPa Grade Count:40
Flexural Modulus	0.120 - 2.62 GPa	17.4 - 380 ksi	Average value: 1.25 GPa Grade Count:310
Secant Modulus	0.900 - 1.36 GPa	131 - 197 ksi	Average value: 1.02 GPa Grade Count:6
Izod Impact, Notched	0.250 - 5340 J/cm	0.468 - 10000 ft-lb/in	Average value: 3.36 J/cm Grade Count:86
Izod Impact, Unnotched	2.70 - 7.20 J/cm	5.06 - 13.5 ft-lb/in	Average value: 4.96 J/cm Grade Count:9
Izod Impact, Notched (ISO)	8.00 - 24.0 kJ/m²	3.81 - 11.4 ft-lb/in²	Average value: 13.5 kJ/m² Grade Count:29
Charpy Impact Unnotched	0.600 - 0.650 J/cm² @Temperature -30.0 - -30.0 °C	2.86 - 3.09 ft-lb/in² @Temperature -22.0 - -22.0 °F	Average value: 0.625 J/cm² Grade Count:2
Charpy Impact, Notched	0.400 J/cm² - NB	1.90 ft-lb/in² - NB	Average value: 1.98 J/cm² Grade Count:20
	0.550 - 5.50 J/cm² @Temperature -30.0 - -30.0 °C	2.62 - 26.2 ft-lb/in² @Temperature -22.0 - -22.0 °F	Average value: 2.22 J/cm² Grade Count:9
Tensile Impact Strength	50.0 - 4800 kJ/m²	23.8 - 2280 ft-lb/in²	Average value: 270 kJ/m² Grade Count:91
	65.0 - 399 kJ/m² @Temperature -40.0 - -30.0 °C	30.9 - 190 ft-lb/in² @Temperature -40.0 - -22.0 °F	Average value: 151 kJ/m² Grade Count:10
Tensile Impact	53.4 - 131 J/cm	100 - 245 ft-lb/in	Average value: 77.4 J/cm Grade Count:25
Tensile Creep Modulus, 1 hour	360 - 510 MPa	52200 - 74000 psi	Average value: 413 MPa Grade Count:6
Tensile Creep Modulus, 1000 hours	250 - 340 MPa	36300 - 49300 psi	Average value: 282 MPa Grade Count:6
Tear Strength Test	23.5 - 30.0	23.5 - 30.0	Average value: 28.4 Grade Count:4
Elmendorf Tear Strength MD	12.0 - 25.0 g	12.0 - 25.0 g	Average value: 18.0 g Grade Count:14
Elmendorf Tear Strength TD	25.0 - 260 g	25.0 - 260 g	Average value: 146 g Grade Count:15
Dart Drop Test	20.0 - 350 g	0.0441 - 0.772 lb	Average value: 153 g Grade Count:15
Film Tensile Strength at Break, MD	39.0 - 68.9 MPa	5660 - 10000 psi	Average value: 56.6 MPa Grade Count:15
Film Tensile Strength at Break, TD	25.0 - 67.6 MPa	3630 - 9800 psi	Average value: 42.4 MPa Grade Count:15

Electrical Properties	Metric	English	Comments
Electrical Resistivity	10000 - 1.00e+15 ohm-cm	10000 - 1.00e+15 ohm-cm	Average value: 8.57e+14 ohm-cm Grade Count:7
Surface Resistance	10000 - 1.00e+14 ohm	10000 - 1.00e+14 ohm	Average value: 8.57e+13 ohm Grade Count:7
Dielectric Constant	2.40	2.40	Average value: 2.40 Grade Count:6
Dielectric Strength	150 kV/mm	3810 kV/in	Average value: 150 kV/mm Grade Count:6
Dissipation Factor	0.000200	0.000200	Average value: 0.000200 Grade Count:6
Comparative Tracking Index	600 V	600 V	Average value: 600 V Grade Count:6

Thermal Properties	Metric	English	Comments
CTE, linear	18.0 - 170 µm/m-°C	10.0 - 94.4 µin/in-°F	Average value: 121 µm/m-°C Grade Count:17
Melting Point	26.0 - 139 °C	78.8 - 282 °F	Average value: 128 °C Grade Count:49
Crystallization Temperature	108 - 120 °C	226 - 248 °F	Average value: 116 °C Grade Count:14
Deflection Temperature at 0.46 MPa (66 psi)	48.0 - 99.0 °C	118 - 210 °F	Average value: 72.9 °C Grade Count:134
Deflection Temperature at 1.8 MPa (264 psi)	42.0 - 46.0 °C	108 - 115 °F	Average value: 43.7 °C Grade Count:6
Vicat Softening Point	62.0 - 131 °C	144 - 268 °F	Average value: 123 °C Grade Count:211
Softening Point	70.0 - 80.0 °C	158 - 176 °F	Average value: 76.8 °C Grade Count:4
Heat Distortion Temperature	38.0 - 75.0 °C	100 - 167 °F	Average value: 58.2 °C Grade Count:3
Brittleness Temperature	-118 - 82.2 °C	-180 - 180 °F	Average value: -80.7 °C Grade Count:185
Flammability, UL94	HB - V-2	HB - V-2	Grade Count:7
Oxygen Index	17.0 %	17.0 %	Average value: 17.0 % Grade Count:6

Optical Properties	Metric	English	Comments
Gloss	25.0 - 90.0 %	25.0 - 90.0 %	Average value: 41.7 % Grade Count:3

Processing Properties	Metric	English	Comments
Processing Temperature	157 - 250 °C	315 - 482 °F	Average value: 199 °C Grade Count:55
Die Temperature	5.00 - 220 °C	41.0 - 428 °F	Average value: 182 °C Grade Count:15
Melt Temperature	130 - 280 °C	266 - 536 °F	Average value: 194 °C Grade Count:56
Head Temperature	185 - 204 °C	365 - 399 °F	Average value: 194 °C Grade Count:3
Mold Temperature	5.00 - 40.0 °C	41.0 - 104 °F	Average value: 19.4 °C Grade Count:8

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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