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Rulon Bearings

Vyncolit 4221 XB Novolac Phenolic
Categories: Polymer; Thermoset; Filled/Reinforced Thermoset; Phenolic; Phenolic, Novolac, Mineral Filled
Material Notes: Mineral and organic filled phenolic molding compound with good mechanical properties.

Information provided by Vyncolit, a Sumitomo Bakelite Group
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Bulk Density 0.600 - 0.750 g/cc0.0217 - 0.0271 lb/in³Powder Density; ISO 60
Density 1.50 g/cc0.0542 lb/in³Relative Density; ISO 1183
Linear Mold Shrinkage 0.0060 - 0.0070 cm/cm0.0060 - 0.0070 in/inInjection Molding; ISO 2577
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength at Break 50.0 - 60.0 MPa7250 - 8700 psiISO 527
Elongation at Break 0.65 - 0.75 %0.65 - 0.75 %Tensile; ISO 527
Tensile Modulus 9.00 - 11.0 GPa1310 - 1600 ksiISO 527
Flexural Strength 110 - 130 MPa16000 - 18900 psiAt Rupture; ISO 178
Flexural Modulus 8.00 - 10.0 GPa1160 - 1450 ksiISO 178
Flexural Strain at Break 1.5 - 1.7 %1.5 - 1.7 %ISO 178
Compressive Strength 220 - 250 MPa31900 - 36300 psiISO 604
Charpy Impact Unnotched 0.800 - 1.00 J/cm²3.81 - 4.76 ft-lb/in²ISO 179
Charpy Impact, Notched 0.200 - 0.300 J/cm²0.952 - 1.43 ft-lb/in²ISO 179
 
Electrical PropertiesMetricEnglishComments
Insulation Resistance 1.00e+9 - 1.00e+10 ohm1.00e+9 - 1.00e+10 ohmDry; IEC 167
Dielectric Strength 25.0 kV/mm635 kV/inIEC 243
Comparative Tracking Index 175 V175 VIEC 112
 
Thermal PropertiesMetricEnglishComments
CTE, linear, Parallel to Flow 40.0 - 50.0 µm/m-°C
@Temperature 20.0 °C		22.2 - 27.8 µin/in-°F
@Temperature 68.0 °F		TMA
CTE, linear, Transverse to Flow 50.0 - 60.0 µm/m-°C
@Temperature 20.0 °C		27.8 - 33.3 µin/in-°F
@Temperature 68.0 °F		TMA
Deflection Temperature at 1.8 MPa (264 psi) 155 - 175 °C311 - 347 °FISO 75 Af
Deflection Temperature at 8.0 MPa 130 - 150 °C266 - 302 °FISO 75 C
Flammability, UL94  V-1
@Thickness 1.60 mm		V-1
@Thickness 0.0630 in
 V-0
@Thickness 4.00 mm		V-0
@Thickness 0.157 in
Shrinkage 0.15 - 0.25 %0.15 - 0.25 %Post Shrinkage; ISO 2577
 
Descriptive Properties
ColorBlack
ISO typePF 2 C3
Main FillerMineral & Organic
Molding MethodCompression, transfer, 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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