Chemours Teflon™ PFA 440HPB Special purpose fluoroplastic resin

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Chemours Teflon™ PFA 440HPB Special purpose fluoroplastic resin
Categories:	Polymer; Thermoplastic; Fluoropolymer; Perfluoroalkoxy (PFA); Polyperfluoroalkoxyethylene, Molded/Extruded
Material Notes:	Teflon™ PFA 440HPB is a special purpose fluoroplastic resin available in pellet form. This resin is a chemically modified form of Teflon™ PFA 340 that combines many of the benefits of the parent resin (a relatively high typical melt flow rate of 14) with several additional benefits including enhanced purity, improved thermal stability while processing, and chemical inertness; for example, to ozonated fluids. Applications for Teflon™ PFA 440HPB include fluid handling components for critical, high-purity processes, like semiconductor, pharmaceutical, and biotechnology, as well as applications where purity in the parts-per-billion range is needed. Teflon™ PFA 440HPB offers a slightly lower melt flow rate than Teflon™ PFA 440HPA, ultimately providing a higher degree of stress crack resistance. Information provided by Chemours.
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Physical Properties	Metric	English	Comments

Specific Gravity	2.15 g/cc	2.15 g/cc	ASTM D792
Water Absorption	<= 0.030 % @Time 86400 sec	<= 0.030 % @Time 24.0 hour	ASTM D570
Melt Flow	14 g/10 min	14 g/10 min	ASTM D3307

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	55	55	ASTM D2240
Tensile Strength	14.0 MPa @Temperature 250 °C	2030 psi @Temperature 482 °F	ASTM D3307
	25.0 MPa @Temperature 23.0 °C	3630 psi @Temperature 73.4 °F	ASTM D3307
Elongation, Ultimate	300 % @Temperature 23.0 °C	300 % @Temperature 73.4 °F	ASTM D3307
	480 % @Temperature 250 °C	480 % @Temperature 482 °F	ASTM D3307
Flexural Modulus	0.0550 GPa @Temperature 250 °C	7.98 ksi @Temperature 482 °F	ASTM D790
	0.590 GPa @Temperature 23.0 °C	85.6 ksi @Temperature 73.4 °F	ASTM D790
Flex Crack Resistance	30000 @Thickness 0.203 mm	30000 @Thickness 0.00800 in	Cycles MIT Folding Endurance; ASTM D2176

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+18 ohm-cm	>= 1.00e+18 ohm-cm	ASTM D257
Surface Resistivity per Square	>= 1.00e+17 ohm	>= 1.00e+17 ohm	ASTM D257
Dielectric Constant	2.03 @Frequency 1e+6 Hz	2.03 @Frequency 1e+6 Hz	ASTM D150
Dielectric Strength	80.0 kV/mm @Thickness 0.250 mm	2030 kV/in @Thickness 0.00984 in	Short Time; ASTM D149
Dissipation Factor	0.00020 @Frequency 1e+6 Hz	0.00020 @Frequency 1e+6 Hz	ASTM D150
Arc Resistance	>= 180 sec	>= 180 sec	ASTM D495

Thermal Properties	Metric	English	Comments
Melting Point	305 °C	581 °F	ASTM D4591
Maximum Service Temperature, Air	260 °C	500 °F	Continuous, per accelerated heat-aging test
Flammability, UL94	V-0	V-0
Oxygen Index	>= 95 %	>= 95 %	ASTM D2863

Descriptive Properties
Chemical/Solvent Resistance	Excellent		ASTM D543
Critical Shear Rate (1/s)	50		372°C
Heat of Combustion	5.3 MJ/kg		ASTM D240
Salt Spray Resistance Coatings (hours)	1000		ASTM B117. 5% NaCl at 35 °C (95 °F).
Weather and Chemical Resistance	Outstanding
Weather Resistance (years unaffected)	10		Florida Exposure

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.

PDU8804 / 268730

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