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

Categories: Polymer ; Thermoplastic; Polyethylene; 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), B low Molding Grade". Ea

property range of values reported is minimum and maximum values of appropriate MatWeb entries. The comments report the average value, and number of da

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 mos

affected by additives or processing methods.

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Physical Properties Metric English Commen

Bulk Density 0.585 - 0.610 g/cc 0.0211 - 0.0220 lb/in³  Average value: 0.593 g/cc Grade Coun

Density 0.923 - 1.01 g/cc 0.0333 - 0.0365 lb/ in³  Average value: 0.954 g/cc Grade Count:2

 Apparent Bulk Density 0.526 - 0.590 g/cc 0.0190 - 0.0213 lb/in³  Average value: 0.579 g/cc Grade Count:

Water Absorption 0.0100 - 0.0200 % 0.0100 - 0.0200 % Average value: 0.0150 % Grade Count:

Moisture Absorption at Equilibrium 0.0100 - 0.0500 % 0.0100 - 0.0500 % Average value: 0.0133 % Grade Count:

Viscosity 1.30e+6 - 1.30e+6 cP@Temperature 190 - 190 °C

1.30e+6 - 1.30e+6 cP@Temperature 374 - 374 °F

 Average value: 1.30e+6 cP Grade Coun

  1.30e+6 - 1.30e+6 cP@Shear Rate 100 - 100 1/s

1.30e+6 - 1.30e+6 cP@Shear Rate 100 - 100 1/s

 Average value: 1.30e+6 cP Grade Coun

Environmental Stress Crack R esistance 10.0 - 5000 hour 10.0 - 5000 hour Average value: 366 hour Grade Count:1

  >= 1000 hour @Temperature 50.0 - 50.0 °C

>= 1000 hour @Temperature 122 - 122 °F

 Average value: 241 hour Grade Coun

  13.0 - 530 hour @Temperature 50.0 - 50.0 °C

13.0 - 530 hour @Temperature 122 - 122 °F

 Average value: 241 hour Grade Count:

  13.0 - 530 hour @Thickness 1.90 - 2.00 mm

13.0 - 530 hour @Thickness 0.0748 - 0.0787 in

 Average value: 241 hour Grade Count:

Thermal Stress Crack Resistance 250 hour 250 hour Average value: 250 hour Grade Coun

Linear Mold Shrinkage 0.0150 - 0.0500 cm/cm 0.0150 - 0.0500 in/in Average value: 0.0242 cm/cm Grade Coun

Melt Flow 0.0100 - 50.0 g/10 min 0.0100 - 50.0 g/10 min Average value: 5.24 g/10 min Grade Count:2

 

Mechanical Properties Metric English Commen

Hardness, Shore D 55.0 - 73.0 55.0 - 73.0 Average value: 64.7 Grade Count:

Tensile Strength, Ultimate 11.7 - 44.0 MPa 1700 - 6380 psi Average value: 29.7 MPa Grade Count:

Tensile Strength, Yield 0.400 - 42.1 MPa 58.0 - 6100 psi Average value: 26.8 MPa Grade Count:2

  0.200 - 0.200 MPa@Temperature 150 - 150 °C

29.0 - 29.0 psi@Temperature 302 - 302 °F

 Average value: 0.200 MPa Grade Coun

Elongation at Br eak 7.00 - 2000 % 7.00 - 2000 % Average value: 627 % Grade Count:1

Elongation at Yield 6.00 - 13.0 % 6.00 - 13.0 % Average value: 8.78 % Grade Count:

Modulus of Elasticity 0.700 - 2.62 GPa 102 - 380 ksi Average value: 1.52 GPa Grade Count:

Flexural Modulus 0.179 - 2.62 GPa 26.0 - 380 ksi Average value: 1.20 GPa Grade Count:1

Charpy Impact Unnotched NB NB Grade Coun

Charpy Impact, Notched 0.400 J/cm² - NB 1.90 ft-lb/in² - NB Average value: 1.25 J/cm² Grade Coun

  0.430 - 2.50 J/cm²@Temperature -30.0 - -30.0 °C

2.05 - 11.9 ft-lb/in²@Temperature -22.0 - -22.0 °F

 Average value: 1.30 J/cm² Grade Coun

Tensile Impact Strength 50.0 - 4800 kJ/m² 23.8 - 2280 ft-lb/in²  Average value: 266 kJ/m² Grade Count:

Tensile Impact 53.4 - 131 J/cm 100 - 245 ft-lb/in Average value: 80.1 J/cm Grade Count:

Tensile Creep Modulus, 1 hour  360 - 510 MPa 52200 - 74000 psi Average value: 413 MPa Grade Coun

Tensile Creep Modulus, 1000 hours 250 - 340 MPa 36300 - 49300 psi Average value: 282 MPa Grade Coun

Izod Impact, Notched 0.320 - 8.90 J/cm 0.599 - 16.7 ft-lb/in Average value: 3.84 J/cm Grade Count:

 

Electrical Properties Metric English Commen

Electrical Resistivity 10000 - 1.00e+16 ohm-cm 10000 - 1.00e+16 ohm-cm Average value: 1.57e+15 ohm-cm Grade Count:

Surface Resistance 10000 - 1.00e+16 ohm 10000 - 1.00e+16 ohm Average value: 1.19e+15 ohm Grade Count:

Dielectric Constant 1.00 - 5.00 1.00 - 5.00 Average value: 2.69 Grade Count:Dielectric Strength 16.0 - 150 kV/mm 406 - 3810 kV/in Average value: 88.9 kV/mm Grade Count:

Dissipation Factor  0.000200 - 0.000350 0.000200 - 0.000350 Average value: 0.000246 Grade Count:

Comparative Tracking Index 600 V 600 V Average value: 600 V Grade Count

 

Thermal Properties Metric English Commen

CTE, linear  18.0 - 180 µm/m-°C 10.0 - 100 µin/in-°F  Average value: 120 µm/m-°C Grade Count:

Specific Heat Capacity 2.60 - 2.60 J/g-°C@Temperature 150 - 150 °C

0.621 - 0.621 BTU/lb-°F@Temperature 302 - 302 °F

 Average value: 2.60 J/g-°C Grade Coun

Melting Point 124 - 136 °C 255 - 277 °F Average value: 130 °C Grade Count:

Deflection Temperature at 0.46 MPa (66 psi) 48.0 - 99.0 °C 118 - 210 °F Average value: 73.7 °C Grade Count:

Deflection Temperature at 1.8 MPa (264 psi) 42.0 - 46.0 °C 108 - 115 °F Average value: 43.7 °C Grade Coun

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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 disclaimer and terms of use regarding this information. Click here to view all the property values for this datasheet as they were

originally entered into MatWeb.

Vicat Softening Point 75.0 - 131 °C 167 - 268 °F Average value: 121 °C Grade Count:1

Brittleness Temperature -118 - 180 °C -180 - 356 °F  Average value: -80.7 °C Grade Count:1

Flammability, UL94 HB - V-2 HB - V-2 Grade Count

Oxygen Index 17.0 % 17.0 % Average value: 17.0 % Grade Coun

 

Processing Properties Metric English Commen

Processing Temperature 160 - 260 °C 320 - 500 °F Average value: 192 °C Grade Count:

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