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Elmet Technologies

Overview of materials for Polyphthalamide (PPA), Aramid Fiber
Categories: Polymer; Thermoplastic; Polyphthalamide (PPA); Polyphthalamide (PPA), Aramid Fiber Filled

Material Notes: This property data is a summary of similar materials in the MatWeb database for the category "Polyphthalamide, Aramid Fiber". 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 1.21 - 1.38 g/cc0.0437 - 0.0499 lb/in³Average value: 1.29 g/cc Grade Count:18
Filler Content 15.0 - 30.0 %15.0 - 30.0 %Average value: 20.0 % Grade Count:4
Water Absorption 0.200 - 0.350 %0.200 - 0.350 %Average value: 0.252 % Grade Count:8
Linear Mold Shrinkage 0.000300 - 0.0200 cm/cm0.000300 - 0.0200 in/inAverage value: 0.00873 cm/cm Grade Count:18
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell R 120 - 125120 - 125Average value: 123 Grade Count:4
Tensile Strength, Ultimate 51.7 - 241 MPa7500 - 35000 psiAverage value: 98.9 MPa Grade Count:18
Elongation at Break 1.00 - 3.50 %1.00 - 3.50 %Average value: 2.14 % Grade Count:18
Modulus of Elasticity 3.50 - 24.1 GPa508 - 3500 ksiAverage value: 7.57 GPa Grade Count:18
Flexural Yield Strength 89.6 - 359 MPa13000 - 52000 psiAverage value: 161 MPa Grade Count:17
Flexural Modulus 3.45 - 22.8 GPa500 - 3300 ksiAverage value: 6.68 GPa Grade Count:17
Izod Impact, Notched 0.160 - 0.801 J/cm0.300 - 1.50 ft-lb/inAverage value: 0.349 J/cm Grade Count:17
Izod Impact, Unnotched 2.14 - 7.47 J/cm4.00 - 14.0 ft-lb/inAverage value: 3.36 J/cm Grade Count:17
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 1000 - 1.00e+16 ohm-cm1000 - 1.00e+16 ohm-cmAverage value: 2.18e+15 ohm-cm Grade Count:12
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 1.8 MPa (264 psi) 135 - 282 °C275 - 540 °FAverage value: 212 °C Grade Count:9
Flammability, UL94 HBHBGrade Count:11
 
Processing PropertiesMetricEnglishComments
Processing Temperature 296 - 338 °C565 - 640 °FAverage value: 313 °C Grade Count:12
Melt Temperature 302 - 330 °C575 - 626 °FAverage value: 316 °C Grade Count:6
Mold Temperature 65.6 - 163 °C150 - 325 °FAverage value: 145 °C Grade Count:18
Drying Temperature 107 - 130 °C225 - 266 °FAverage value: 110 °C Grade Count:6
Moisture Content 0.0500 %0.0500 %Average value: 0.0500 % Grade Count:5
Dew Point -31.7 °C-25.0 °FAverage value: -31.7 °C Grade Count:5
Injection Pressure 68.9 - 124 MPa10000 - 18000 psiAverage value: 95.3 MPa Grade Count:17

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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