Sumitomo Bakelite Durez® 32245 Phenolic, Injection Grade

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Sumitomo Bakelite Durez® 32245 Phenolic, Injection Grade
Categories:	Polymer; Thermoset; Phenolic
Material Notes:	Durez 32245 Black Phenolic is a two-stage glass fiber and mineral filled special purpose molding compound. It is especially designed for applications requiring high strength and dimensional stability with excellent heat resistance. Typical applications include heavy duty switch gear, connectors, and commutators. Information provided by Sumitomo Bakelite North America, Inc.
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Physical Properties	Metric	English	Comments

Bulk Density	0.850 g/cc	0.0307 lb/in³	ASTM D1895
Density	1.80 g/cc	0.0650 lb/in³	ASTM D792
Water Absorption	0.050 %	0.050 %	ASTM D570
Linear Mold Shrinkage	0.0030 cm/cm	0.0030 in/in	ASTM D6289

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	86.0 MPa	12500 psi	ASTM D638
Tensile Modulus	17.2 GPa	2490 ksi	ASTM D638
Flexural Strength	138 MPa	20000 psi	ASTM D790
Compressive Strength	241 MPa	35000 psi	ASTM D695
Izod Impact, Notched	0.267 J/cm	0.500 ft-lb/in	ASTM D256

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+12 ohm-cm	1.00e+12 ohm-cm	ASTM D257
Dielectric Constant	4.9 @Frequency 1e+6 Hz	4.9 @Frequency 1e+6 Hz	ASTM D150
Dielectric Strength	13.8 kV/mm	351 kV/in	step-by-step; ASTM D149
	17.7 kV/mm	450 kV/in	short time; ASTM D149
Dissipation Factor	0.020 @Frequency 1e+6 Hz	0.020 @Frequency 1e+6 Hz	ASTM D150

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	180 °C	356 °F	UL Temperature Index; at 3.0 mm
Deflection Temperature at 1.8 MPa (264 psi)	204 °C	399 °F	ASTM D648
Flammability, UL94	V-0 @Thickness 1.50 mm	V-0 @Thickness 0.0591 in
	V-0 @Thickness 3.00 mm	V-0 @Thickness 0.118 in
	V-0 @Thickness 6.00 mm	V-0 @Thickness 0.236 in

Processing Properties	Metric	English	Comments
Shelf Life	12.0 Month	12.0 Month

Descriptive Properties
Color	Black
Form	Granular
Molding Method	Injection

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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P90X934 / 142709

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