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Ensinger PEI

DuPont™ Nomex® Type 993, 120 mil Nominal Thickness Medium-Density Aromatic Nylon Pressboard
Categories: Polymer; Thermoplastic; Nylon (Polyamide PA); Nylon, Aromatic
Material Notes: Type 993 is a medium-density pressboard which offers a balance of rigidity and conformability along with outstanding saturability and excellent properties in air and oil. Typical applications include 3-dimensional parts such as V-rings, angle rings and spools, as well as barrier, gap spacers and core tubes.
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Physical PropertiesMetricEnglishComments
Density 0.820 g/cc0.0296 lb/in³Calculated number using basis weight and thickness
Thickness 3000 microns118 milASTM D374, method D, using 17 N/cm²
Linear Mold Shrinkage  0.0070 cm/cm0.0070 in/inASTM D3392
 0.012 cm/cm0.012 in/inASTM D3392
Linear Mold Shrinkage, Transverse  0.010 cm/cm0.010 in/inASTM D3392
 0.018 cm/cm0.018 in/inASTM D3392
 
Mechanical PropertiesMetricEnglishComments
Film Tensile Strength at Yield, MD 46.0 MPa6670 psiASTM D828
Film Tensile Strength at Yield, TD 39.2 MPa5690 psiASTM D828
Film Elongation at Yield, MD 13.7 %13.7 %ASTM D828
Film Elongation at Yield, TD 14.2 %14.2 %ASTM D828
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity  1.00e+15 ohm-cm
@Temperature 220 °C		1.00e+15 ohm-cm
@Temperature 428 °F		ASTM D257
 1.00e+17 ohm-cm
@Temperature 150 °C		1.00e+17 ohm-cm
@Temperature 302 °F		ASTM D257
 1.00e+17 ohm-cm
@Temperature 130 °C		1.00e+17 ohm-cm
@Temperature 266 °F		in oil; ASTM D257
 1.00e+18 ohm-cm
@Temperature 50.0 °C		1.00e+18 ohm-cm
@Temperature 122 °F		ASTM D257
 1.00e+18 ohm-cm
@Temperature 100 °C		1.00e+18 ohm-cm
@Temperature 212 °F		ASTM D257
 1.00e+18 ohm-cm
@Temperature 90.0 °C		1.00e+18 ohm-cm
@Temperature 194 °F		in oil; ASTM D257
 1.00e+19 ohm-cm
@Temperature 23.0 °C		1.00e+19 ohm-cm
@Temperature 73.4 °F		ASTM D257
Surface Resistivity per Square  1.00e+15 ohm
@Temperature 220 °C		1.00e+15 ohm
@Temperature 428 °F		ASTM D257
 1.00e+16 ohm
@Temperature 150 °C		1.00e+16 ohm
@Temperature 302 °F		ASTM D257
 1.00e+17 ohm
@Temperature 23.0 °C		1.00e+17 ohm
@Temperature 73.4 °F		ASTM D257
 1.00e+17 ohm
@Temperature 50.0 °C		1.00e+17 ohm
@Temperature 122 °F		ASTM D257
 1.00e+17 ohm
@Temperature 100 °C		1.00e+17 ohm
@Temperature 212 °F		ASTM D257
Dielectric Constant  2.6
@Frequency 60 Hz,
Temperature 23.0 °C		2.6
@Frequency 60 Hz,
Temperature 73.4 °F		ASTM D150
 2.6
@Frequency 60 Hz,
Temperature 50.0 °C		2.6
@Frequency 60 Hz,
Temperature 122 °F		ASTM D150
 2.7
@Frequency 60 Hz,
Temperature 100 °C		2.7
@Frequency 60 Hz,
Temperature 212 °F		ASTM D150
 2.8
@Frequency 60 Hz,
Temperature 150 °C		2.8
@Frequency 60 Hz,
Temperature 302 °F		ASTM D150
 2.9
@Frequency 60 Hz,
Temperature 220 °C		2.9
@Frequency 60 Hz,
Temperature 428 °F		ASTM D150
 3.5
@Frequency 60 Hz,
Temperature 25.0 °C		3.5
@Frequency 60 Hz,
Temperature 77.0 °F		in oil; ASTM D150
 3.5
@Frequency 60 Hz,
Temperature 90.0 °C		3.5
@Frequency 60 Hz,
Temperature 194 °F		in oil; ASTM D150
 3.7
@Frequency 60 Hz,
Temperature 130 °C		3.7
@Frequency 60 Hz,
Temperature 266 °F		in oil; ASTM D150
Dielectric Strength 20.0 kV/mm508 kV/inAC rapid rise in air; ASTM D149
 30.0 kV/mm762 kV/inAC rapid rise in oil; ASTM D149
 62.0 kV/mm1570 kV/inFull wave impulse in oil; ASTM D3426
Dissipation Factor  0.0050
@Frequency 60 Hz,
Temperature 100 °C		0.0050
@Frequency 60 Hz,
Temperature 212 °F		ASTM D150
 0.0050
@Frequency 60 Hz,
Temperature 90.0 °C		0.0050
@Frequency 60 Hz,
Temperature 194 °F		in oil; ASTM D150
 0.0060
@Frequency 60 Hz,
Temperature 150 °C		0.0060
@Frequency 60 Hz,
Temperature 302 °F		ASTM D150
 0.0060
@Frequency 60 Hz,
Temperature 25.0 °C		0.0060
@Frequency 60 Hz,
Temperature 77.0 °F		in oil; ASTM D150
 0.0070
@Frequency 60 Hz,
Temperature 130 °C		0.0070
@Frequency 60 Hz,
Temperature 266 °F		in oil; ASTM D150
 0.012
@Frequency 60 Hz,
Temperature 220 °C		0.012
@Frequency 60 Hz,
Temperature 428 °F		ASTM D150
 0.012
@Frequency 60 Hz,
Temperature 50.0 °C		0.012
@Frequency 60 Hz,
Temperature 122 °F		ASTM D150
 0.015
@Frequency 60 Hz,
Temperature 23.0 °C		0.015
@Frequency 60 Hz,
Temperature 73.4 °F		ASTM D150
 
Thermal PropertiesMetricEnglishComments
Oxygen Index  20.8 %
@Temperature 230 °C		20.8 %
@Temperature 446 °F		Flammability threshold; ASTM D2863
 23 %
@Temperature 180 °C		23 %
@Temperature 356 °F		ASTM D2863
 25 %
@Temperature 150 °C		25 %
@Temperature 302 °F		ASTM D2863
 30 %
@Temperature 60.0 °C		30 %
@Temperature 140 °F		ASTM D2863
 32 %
@Temperature 25.0 °C		32 %
@Temperature 77.0 °F		ASTM D2863
 
Descriptive Properties
Basis Weight (g/m²)ASTM D3392

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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