Overview of materials for High Density Polyethylene (HDPE), Extruded
Categories: Polymer; Thermoplastic; Polyethylene (PE); High Density (HDPE); High Density Polyethylene (HDPE), Extruded

Material Notes: This property data is a summary of similar materials in the MatWeb database for the category "High Density Polyethylene (HDPE), Extruded". 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 PropertiesMetricEnglishComments
Density 0.933 - 1.27 g/cc0.0337 - 0.0459 lb/in³Average value: 0.958 g/cc Grade Count:175
Water Absorption 0.010 - 0.30 %0.010 - 0.30 %Average value: 0.113 % Grade Count:7
Viscosity Test 300 - 500 cm³/g3.00 - 5.00 dl/gAverage value: 409 cm³/g Grade Count:7
Environmental Stress Crack Resistance 10 - 10000 hour10 - 10000 hourAverage value: 1030 hour Grade Count:54
 200 - 200 hour
@Temperature 50.0 - 50.0 °C
200 - 200 hour
@Temperature 122 - 122 °F
Average value: 963 hour Grade Count:7
 139 - 139 hour
@Temperature 50.0 - 50.0 °C
139 - 139 hour
@Temperature 122 - 122 °F
Average value: 963 hour Grade Count:3
 139 - 139 hour
@Thickness 2.00 - 2.00 mm
139 - 139 hour
@Thickness 0.0787 - 0.0787 in
Average value: 963 hour Grade Count:3
Oxidative Induction Time (OIT) 10 - 200 min10 - 200 minAverage value: 62.5 min Grade Count:4
 20 - 50 min
@Temperature 200 - 210 °C
20 - 50 min
@Temperature 392 - 410 °F
Average value: 42.9 min Grade Count:7
Linear Mold Shrinkage 0.0050 - 0.040 cm/cm0.0050 - 0.040 in/inAverage value: 0.0137 cm/cm Grade Count:6
Melt Flow 0.040 - 63 g/10 min0.040 - 63 g/10 minAverage value: 4.31 g/10 min Grade Count:173
Ash 0.040 - 0.060 %0.040 - 0.060 %Average value: 0.0553 % Grade Count:14
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell R 80 - 11280 - 112Average value: 90.7 Grade Count:3
Hardness, Shore D 55 - 6955 - 69Average value: 62.1 Grade Count:71
Ball Indentation Hardness 40.0 - 58.0 MPa5800 - 8410 psiAverage value: 46.8 MPa Grade Count:11
Tensile Strength, Ultimate 15.2 - 45.0 MPa2200 - 6530 psiAverage value: 26.8 MPa Grade Count:63
 11.0 - 25.0 MPa
@Temperature -30.0 - 70.0 °C
1600 - 3630 psi
@Temperature -22.0 - 158 °F
Average value: 20.3 MPa Grade Count:1
Tensile Strength, Yield 2.69 - 200 MPa390 - 29000 psiAverage value: 25.8 MPa Grade Count:111
 6.89476 - 30.0 MPa
@Temperature -30.0 - 70.0 °C
1000.00 - 4350 psi
@Temperature -22.0 - 158 °F
Average value: 20.6 MPa Grade Count:1
Film Elongation at Break, MD 400 - 600 %400 - 600 %Average value: 500 % Grade Count:4
Film Elongation at Break, TD 450 - 650 %450 - 650 %Average value: 550 % Grade Count:4
Elongation at Break 3.0 - 1900 %3.0 - 1900 %Average value: 616 % Grade Count:109
 200 - 500 %
@Temperature -30.0 - 70.0 °C
200 - 500 %
@Temperature -22.0 - 158 °F
Average value: 367 % Grade Count:1
Elongation at Yield 7.0 - 14 %7.0 - 14 %Average value: 9.37 % Grade Count:29
 4.0 - 9.0 %
@Temperature -30.0 - 70.0 °C
4.0 - 9.0 %
@Temperature -22.0 - 158 °F
Average value: 5.67 % Grade Count:1
Modulus of Elasticity 0.483 - 1.45 GPa70.0 - 210 ksiAverage value: 0.966 GPa Grade Count:30
Flexural Yield Strength 16.5 - 91.0 MPa2400 - 13200 psiAverage value: 48.7 MPa Grade Count:8
Flexural Modulus 0.500 - 4.83 GPa72.5 - 700 ksiAverage value: 1.18 GPa Grade Count:76
Secant Modulus 0.531 - 1.24 GPa77.0 - 180 ksiAverage value: 0.788 GPa Grade Count:4
Izod Impact, Notched 0.200 - 7.50 J/cm0.375 - 14.1 ft-lb/inAverage value: 2.30 J/cm Grade Count:31
 0.700 - 1.10 J/cm
@Temperature -40.0 - -40.0 °C
1.31 - 2.06 ft-lb/in
@Temperature -40.0 - -40.0 °F
Average value: 0.900 J/cm Grade Count:2
Izod Impact, Unnotched 2.40 - 5340 J/cm4.50 - 10000 ft-lb/inAverage value: 2.40 J/cm Grade Count:3
Izod Impact, Notched (ISO) 3.00 - 3.00 kJ/m²
@Temperature -20.0 - -20.0 °C
1.43 - 1.43 ft-lb/in²
@Temperature -4.00 - -4.00 °F
Average value: 3.00 kJ/m² Grade Count:1
Charpy Impact, Notched 0.400 - 10.5 J/cm²1.90 - 50.0 ft-lb/in²Average value: 4.43 J/cm² Grade Count:3
 0.450 - 0.800 J/cm²
@Temperature -30.0 - -30.0 °C
2.14 - 3.81 ft-lb/in²
@Temperature -22.0 - -22.0 °F
Average value: 0.617 J/cm² Grade Count:3
Tensile Impact Strength 70.0 - 480 kJ/m²33.3 - 228 ft-lb/in²Average value: 224 kJ/m² Grade Count:9
 90.0 - 280 kJ/m²
@Temperature -30.0 - -30.0 °C
42.8 - 133 ft-lb/in²
@Temperature -22.0 - -22.0 °F
Average value: 178 kJ/m² Grade Count:12
Tensile Impact 68.3 - 152 J/cm128 - 285 ft-lb/inAverage value: 90.2 J/cm Grade Count:7
Coefficient of Friction 0.20 - 0.280.20 - 0.28Average value: 0.240 Grade Count:4
Tear Strength Test 17 - 29.417 - 29.4Average value: 21.6 Grade Count:11
Elmendorf Tear Strength MD 20.4 - 33.6 g20.4 - 33.6 gAverage value: 23.9 g Grade Count:4
Elmendorf Tear Strength TD 40.8 - 204 g40.8 - 204 gAverage value: 99.4 g Grade Count:4
Film Tensile Strength at Break, MD 45.0 - 55.0 MPa6530 - 7980 psiAverage value: 47.8 MPa Grade Count:4
Film Tensile Strength at Break, TD 40.0 - 46.0 MPa5800 - 6670 psiAverage value: 42.3 MPa Grade Count:4
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 1.00 - 1.00e+20 ohm-cm1.00 - 1.00e+20 ohm-cmAverage value: 4.17e+18 ohm-cm Grade Count:25
Surface Resistance 100 - 1.00e+17 ohm100 - 1.00e+17 ohmAverage value: 2.00e+16 ohm Grade Count:6
Dielectric Constant 2.0 - 2.62.0 - 2.6Average value: 2.33 Grade Count:17
Dielectric Strength 11.8 - 150 kV/mm300 - 3810 kV/inAverage value: 34.1 kV/mm Grade Count:15
Dissipation Factor 0.000020 - 0.00100.000020 - 0.0010Average value: 0.000228 Grade Count:14
 
Thermal PropertiesMetricEnglishComments
CTE, linear 34.2 - 200 µm/m-°C19.0 - 111 µin/in-°FAverage value: 116 µm/m-°C Grade Count:10
Melting Point 26.0 - 135 °C78.8 - 275 °FAverage value: 127 °C Grade Count:39
Maximum Service Temperature, Air 80.0 - 120 °C176 - 248 °FAverage value: 91.3 °C Grade Count:3
Deflection Temperature at 0.46 MPa (66 psi) 62.0 - 143 °C144 - 290 °FAverage value: 80.5 °C Grade Count:29
Deflection Temperature at 1.8 MPa (264 psi) 42.0 - 127 °C108 - 260 °FAverage value: 64.0 °C Grade Count:15
Vicat Softening Point 70.0 - 133 °C158 - 271 °FAverage value: 116 °C Grade Count:65
Brittleness Temperature -118 - 76.0 °C-180 - 169 °FAverage value: -79.0 °C Grade Count:49
Flammability, UL94 HB - V-0HB - V-0Grade Count:4
 
Processing PropertiesMetricEnglishComments
Processing Temperature 180 - 249 °C356 - 480 °FAverage value: 212 °C Grade Count:6
Adapter Temperature 210 - 260 °C410 - 500 °FAverage value: 247 °C Grade Count:7
Die Temperature 60.0 - 260 °C140 - 500 °FAverage value: 235 °C Grade Count:8
Melt Temperature 124 - 321 °C255 - 610 °FAverage value: 213 °C Grade Count:51
Head Temperature 191 - 235 °C375 - 455 °FAverage value: 212 °C Grade Count:3
Mold Temperature 15.6 - 65.6 °C60.0 - 150 °FAverage value: 34.1 °C Grade Count:3
Drying Temperature 76.7 - 79.4 °C170 - 175 °FAverage value: 79.1 °C Grade Count:4

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