Sumitomo Bakelite Durez® 23570 Phenolic, Compression Grade

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Sumitomo Bakelite Durez® 23570 Phenolic, Compression Grade
Categories:	Polymer; Thermoset; Phenolic
Material Notes:	Durez 23570 Black Phenolic is a glass and mineral filled two-stage, special purpose molding material. It is designed for high strength, good dimensional stability, and electrical properties even after long term exposure to elevated temperatures. It is designed to meet the requirements of Mil-M-14G, Type MFH. Typical uses are connectors, automotive transmission components, computer parts and brush holders. Information provided by Sumitomo Bakelite North America, Inc.
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Physical Properties	Metric	English	Comments

Density	1.77 g/cc	0.0639 lb/in³	ASTM D792
Apparent Bulk Density	0.800 g/cc	0.0289 lb/in³	ASTM D1895
Water Absorption	0.050 %	0.050 %	ASTM D570
Linear Mold Shrinkage	0.0030 cm/cm	0.0030 in/in	ASTM D955

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	90.0 MPa	13100 psi	ASTM D638
Tensile Modulus	17.2 GPa	2490 ksi	ASTM D638
Flexural Yield Strength	124 MPa	18000 psi	ASTM D790
Compressive Yield Strength	248 MPa	36000 psi	ASTM D695
Poissons Ratio	0.32	0.32
Shear Modulus	6.52 GPa	946 ksi	Calculated
Shear Strength	62.7 MPa	9100 psi	after 16hrs @ 300°F
	84.8 MPa	12300 psi	as molded
Izod Impact, Notched	0.267 J/cm	0.500 ft-lb/in	ASTM D256

Electrical Properties	Metric	English	Comments
Electrical Resistivity	1.00e+12 ohm-cm	1.00e+12 ohm-cm	ASTM D257
Dielectric Constant	5.5 @Frequency 1e+6 Hz	5.5 @Frequency 1e+6 Hz	ASTM D150
Dielectric Strength	14.7 kV/mm	373 kV/in	Step by step; ASTM D149
	16.7 kV/mm	424 kV/in	Short Time; ASTM D149
Dissipation Factor	0.010 @Frequency 1e+6 Hz	0.010 @Frequency 1e+6 Hz	ASTM D150

Thermal Properties	Metric	English	Comments
CTE, linear	20.5 µm/m-°C @Temperature 23.0 - 60.0 °C	11.4 µin/in-°F @Temperature 73.4 - 140 °F
Specific Heat Capacity	1.17 J/g-°C	0.280 BTU/lb-°F
Thermal Conductivity	0.452 W/m-K	3.13 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	150 °C @Thickness 3.00 mm	302 °F @Thickness 0.118 in	UL Temp Index
Deflection Temperature at 1.8 MPa (264 psi)	204 °C	399 °F	ASTM D648
Flammability, UL94	V-0 @Thickness 3.00 mm	V-0 @Thickness 0.118 in
	5VA @Thickness 1.50 mm	5VA @Thickness 0.0591 in

Descriptive Properties
Color	Black
Feeding & Preforming	Good
Form	Granular

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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P90X20b / 130909

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