DuPont™ Nomex® Type 993, 160 mil Nominal Thickness Medium-Density Aromatic Nylon Pressboard

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DuPont™ Nomex® Type 993, 160 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 Properties	Original Value	Comments

Density	0.820 g/cc	Calculated number using basis weight and thickness
Thickness	4150 microns	ASTM D374, method D, using 17 N/cm²
Linear Mold Shrinkage	0.0040 cm/cm	ASTM D3392
	0.012 cm/cm	ASTM D3392
Linear Mold Shrinkage, Transverse	0.0060 cm/cm	ASTM D3392
	0.015 cm/cm	ASTM D3392

Mechanical Properties	Original Value	Comments
Film Tensile Strength at Yield, MD	49.1 MPa	ASTM D828
Film Tensile Strength at Yield, TD	45.3 MPa	ASTM D828
Film Elongation at Yield, MD	14.7 %	ASTM D828
Film Elongation at Yield, TD	15.3 %	ASTM D828

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+17 ohm-cm @Temperature 130 °C	in oil; ASTM D257
	1.00e+18 ohm-cm @Temperature 90.0 °C	in oil; ASTM D257
Dielectric Constant	3.6 @Frequency 60 Hz, Temperature 25.0 °C	in oil; ASTM D150
	3.7 @Frequency 60 Hz, Temperature 90.0 °C	in oil; ASTM D150
	3.8 @Frequency 60 Hz, Temperature 130 °C	in oil; ASTM D150
Dielectric Strength	19.0 kV/mm	AC rapid rise in air; ASTM D149
	27.0 kV/mm	AC rapid rise in oil; ASTM D149
	60.0 kV/mm	Full wave impulse in oil; ASTM D3426
Dissipation Factor	0.0050 @Frequency 60 Hz, Temperature 90.0 °C	in oil; ASTM D150
	0.0060 @Frequency 60 Hz, Temperature 130 °C	in oil; ASTM D150
	0.0070 @Frequency 60 Hz, Temperature 25.0 °C	in oil; ASTM D150

Thermal Properties	Original Value	Comments
Thermal Conductivity	0.0950 W/m-K @Temperature 125 °C	ASTM D1674
	0.100 W/m-K @Temperature 175 °C	ASTM D1674
	0.1025 W/m-K @Temperature 220 °C	ASTM D1674

Descriptive Properties
Basis Weight (g/m²)	ASTM D3394

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PMUE012 / 108393

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