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Rulon Bearings

Overview of materials for Polybutylene Terephthalate (PBT), Flame Retardant
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), Flame Retardant
Material Notes: This property data is a summary of similar materials in the MatWeb database for the category "Polybutylene Terephthalate (PBT), Flame Retardant". Each property range of values reported is minimum and maximum values of appropriate MatWeb entries. The comments report the average value, and number of data points used to calculate the average. The values are not necessarily typical of any specific grade, especially less common values and those that can be most affected by additives or processing methods.
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Physical PropertiesMetricEnglishComments
Density 1.13 - 1.76 g/cc0.0408 - 0.0636 lb/in³Average value: 1.47 g/cc Grade Count:184
Filler Content 15.0 - 35.0 %15.0 - 35.0 %Average value: 25.3 % Grade Count:16
Water Absorption 0.000 - 8.00 %0.000 - 8.00 %Average value: 0.333 % Grade Count:67
Moisture Absorption at Equilibrium 0.0300 - 2.00 %0.0300 - 2.00 %Average value: 0.175 % Grade Count:58
Water Absorption at Saturation 0.350 - 0.500 %0.350 - 0.500 %Average value: 0.408 % Grade Count:6
Maximum Moisture Content 0.02000.0200Average value: 0.0200 Grade Count:6
Linear Mold Shrinkage 0.00200 - 0.0260 cm/cm0.00200 - 0.0260 in/inAverage value: 0.0113 cm/cm Grade Count:160
 0.00300 - 0.00300 cm/cm
@Temperature 80.0 - 80.0 °C		0.00300 - 0.00300 in/in
@Temperature 176 - 176 °F		Average value: 0.0157 cm/cm Grade Count:1
 0.0220 - 0.0220 cm/cm
@Temperature 260 - 260 °C		0.0220 - 0.0220 in/in
@Temperature 500 - 500 °F		Average value: 0.0157 cm/cm Grade Count:1
 0.0220 - 0.0220 cm/cm
@Pressure 60.0 - 60.0 MPa		0.0220 - 0.0220 in/in
@Pressure 8700 - 8700 psi		Average value: 0.0157 cm/cm Grade Count:1
Linear Mold Shrinkage, Transverse 0.00220 - 0.0300 cm/cm0.00220 - 0.0300 in/inAverage value: 0.0144 cm/cm Grade Count:33
 0.0110 - 0.0110 cm/cm
@Temperature 80.0 - 80.0 °C		0.0110 - 0.0110 in/in
@Temperature 176 - 176 °F		Average value: 0.0177 cm/cm Grade Count:1
 0.0210 - 0.0210 cm/cm
@Temperature 260 - 260 °C		0.0210 - 0.0210 in/in
@Temperature 500 - 500 °F		Average value: 0.0177 cm/cm Grade Count:1
 0.0210 - 0.0210 cm/cm
@Pressure 60.0 - 60.0 MPa		0.0210 - 0.0210 in/in
@Pressure 8700 - 8700 psi		Average value: 0.0177 cm/cm Grade Count:1
Melt Flow 3.00 - 85.0 g/10 min3.00 - 85.0 g/10 minAverage value: 33.0 g/10 min Grade Count:43
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell M 75.0 - 95.075.0 - 95.0Average value: 84.5 Grade Count:10
Hardness, Rockwell R 116 - 124116 - 124Average value: 119 Grade Count:37
Tensile Strength, Ultimate 34.0 - 149 MPa4930 - 21600 psiAverage value: 73.9 MPa Grade Count:88
 12.0 - 85.0 MPa
@Temperature 60.0 - 150 °C		1740 - 12300 psi
@Temperature 140 - 302 °F		Average value: 41.5 MPa Grade Count:3
Tensile Strength, Yield 30.0 - 132 MPa4350 - 19200 psiAverage value: 79.7 MPa Grade Count:109
Elongation at Break 1.00 - 145 %1.00 - 145 %Average value: 13.6 % Grade Count:113
 4.00 - 90.0 %
@Temperature 60.0 - 150 °C		4.00 - 90.0 %
@Temperature 140 - 302 °F		Average value: 56.9 % Grade Count:3
Elongation at Yield 2.54 - 75.0 %2.54 - 75.0 %Average value: 14.3 % Grade Count:29
 4.50 - 10.0 %
@Temperature 60.0 - 90.0 °C		4.50 - 10.0 %
@Temperature 140 - 194 °F		Average value: 7.00 % Grade Count:2
Modulus of Elasticity 0.750 - 11.0 GPa109 - 1600 ksiAverage value: 4.12 GPa Grade Count:56
 0.350 - 7.20 GPa
@Temperature 60.0 - 150 °C		50.8 - 1040 ksi
@Temperature 140 - 302 °F		Average value: 2.13 GPa Grade Count:3
Flexural Yield Strength 45.0 - 216 MPa6530 - 31300 psiAverage value: 123 MPa Grade Count:157
 35.0 - 35.0 MPa
@Temperature 90.0 - 90.0 °C		5080 - 5080 psi
@Temperature 194 - 194 °F		Average value: 35.0 MPa Grade Count:1
Flexural Modulus 0.330 - 14.0 GPa47.9 - 2020 ksiAverage value: 5.24 GPa Grade Count:162
 0.600 - 0.600 GPa
@Temperature 90.0 - 90.0 °C		87.0 - 87.0 ksi
@Temperature 194 - 194 °F		Average value: 0.600 GPa Grade Count:1
Flexural Strain at Yield 5.00 - 6.50 %5.00 - 6.50 %Average value: 5.45 % Grade Count:4
Poissons Ratio 0.360 - 0.3700.360 - 0.370Average value: 0.367 Grade Count:3
Izod Impact, Notched 0.250 - 6.41 J/cm0.468 - 12.0 ft-lb/inAverage value: 0.944 J/cm Grade Count:91
 0.300 - 3.2034 J/cm
@Temperature -40.0 - -20.0 °C		0.562 - 6.0013 ft-lb/in
@Temperature -40.0 - -4.00 °F		Average value: 1.30 J/cm Grade Count:3
Izod Impact, Unnotched 0.588 - 13.3 J/cm1.10 - 25.0 ft-lb/inAverage value: 8.11 J/cm Grade Count:6
Izod Impact, Notched (ISO) 4.00 - 15.0 kJ/m²1.90 - 7.14 ft-lb/in²Average value: 7.93 kJ/m² Grade Count:54
 2.00 - 10.0 kJ/m²
@Temperature -30.0 - -30.0 °C		0.952 - 4.76 ft-lb/in²
@Temperature -22.0 - -22.0 °F		Average value: 7.20 kJ/m² Grade Count:5
Izod Impact, Unnotched (ISO) 30.0 kJ/m² - NB14.3 ft-lb/in² - NBAverage value: 53.2 kJ/m² Grade Count:49
 42.0 - 110 kJ/m²
@Temperature -30.0 - -30.0 °C		20.0 - 52.3 ft-lb/in²
@Temperature -22.0 - -22.0 °F		Average value: 70.5 kJ/m² Grade Count:4
Charpy Impact Unnotched 0.680 J/cm² - NB3.24 ft-lb/in² - NBAverage value: 5.99 J/cm² Grade Count:38
 2.50 J/cm² - NB
@Temperature -30.0 - -20.0 °C		11.9 ft-lb/in² - NB
@Temperature -22.0 - -4.00 °F		Average value: 7.29 J/cm² Grade Count:24
Charpy Impact, Notched 0.160 - 2.10 J/cm²0.761 - 9.99 ft-lb/in²Average value: 0.600 J/cm² Grade Count:50
 0.200 - 1.00 J/cm²
@Temperature -30.0 - -20.0 °C		0.952 - 4.76 ft-lb/in²
@Temperature -22.0 - -4.00 °F		Average value: 0.576 J/cm² Grade Count:21
Gardner Impact 16.9 - 36.2 J12.5 - 26.7 ft-lbAverage value: 29.8 J Grade Count:6
Tensile Impact Strength 45.0 - 100 kJ/m²21.4 - 47.6 ft-lb/in²Average value: 65.0 kJ/m² Grade Count:3
Tensile Creep Modulus, 1 hour 950 - 3000 MPa138000 - 435000 psiAverage value: 2160 MPa Grade Count:4
Tensile Creep Modulus, 1000 hours 650 - 1800 MPa94300 - 261000 psiAverage value: 1340 MPa Grade Count:4
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 1e+05 - 1.00e+17 ohm-cm1e+05 - 1.00e+17 ohm-cmAverage value: 1.25e+16 ohm-cm Grade Count:120
Surface Resistance 1.00e+8 - 1.00e+17 ohm1.00e+8 - 1.00e+17 ohmAverage value: 3.15e+15 ohm Grade Count:36
Dielectric Constant 2.80 - 4.002.80 - 4.00Average value: 3.25 Grade Count:92
Dielectric Strength 15.0 - 39.0 kV/mm381 - 990 kV/inAverage value: 21.9 kV/mm Grade Count:115
Dissipation Factor 0.000710 - 0.02500.000710 - 0.0250Average value: 0.0150 Grade Count:34
Dielectric Loss Index 0.00100 - 0.02000.00100 - 0.0200Average value: 0.0183 Grade Count:44
Arc Resistance 60.0 - 120 sec60.0 - 120 secAverage value: 105 sec Grade Count:23
Comparative Tracking Index 0.000 - 600 V0.000 - 600 VAverage value: 359 V Grade Count:42
Hot Wire Ignition, HWI 7.00 - 120 sec7.00 - 120 secAverage value: 33.7 sec Grade Count:5
High Amp Arc Ignition, HAI 30.0 - 120 arcs30.0 - 120 arcsAverage value: 104 arcs Grade Count:5
High Voltage Arc-Tracking Rate, HVTR 80.0 - 150 mm/min3.15 - 5.91 in/minAverage value: 129 mm/min Grade Count:5
 
Thermal PropertiesMetricEnglishComments
CTE, linear 10.0 - 139 µm/m-°C5.56 - 77.2 µin/in-°FAverage value: 63.5 µm/m-°C Grade Count:59
 140 - 140 µm/m-°C
@Temperature 50.0 - 120 °C		77.8 - 77.8 µin/in-°F
@Temperature 122 - 248 °F		Average value: 140 µm/m-°C Grade Count:1
CTE, linear, Transverse to Flow 10.0 - 120 µm/m-°C5.56 - 66.7 µin/in-°FAverage value: 87.3 µm/m-°C Grade Count:20
 150 - 150 µm/m-°C
@Temperature 50.0 - 120 °C		83.3 - 83.3 µin/in-°F
@Temperature 122 - 248 °F		Average value: 150 µm/m-°C Grade Count:1
Melting Point 200 - 240 °C392 - 464 °FAverage value: 222 °C Grade Count:35
Maximum Service Temperature, Air 75.0 - 135 °C167 - 275 °FAverage value: 108 °C Grade Count:7
Deflection Temperature at 0.46 MPa (66 psi) 60.0 - 227 °C140 - 441 °FAverage value: 181 °C Grade Count:125
Deflection Temperature at 1.8 MPa (264 psi) 40.0 - 220 °C104 - 428 °FAverage value: 133 °C Grade Count:164
Vicat Softening Point 110 - 222 °C230 - 432 °FAverage value: 188 °C Grade Count:27
UL RTI, Electrical 60.0 - 140 °C140 - 284 °FAverage value: 106 °C Grade Count:8
UL RTI, Mechanical with Impact 60.0 - 130 °C140 - 266 °FAverage value: 105 °C Grade Count:8
UL RTI, Mechanical without Impact 60.0 - 140 °C140 - 284 °FAverage value: 92.5 °C Grade Count:8
Flammability, UL94 HB - 5VAHB - 5VAGrade Count:180
Oxygen Index 28.0 - 36.0 %28.0 - 36.0 %Average value: 30.9 % Grade Count:7
Glow Wire Test 690 - 960 °C1270 - 1760 °FAverage value: 898 °C Grade Count:23
 
Processing PropertiesMetricEnglishComments
Processing Temperature 204 - 270 °C400 - 518 °FAverage value: 249 °C Grade Count:8
Nozzle Temperature 225 - 280 °C437 - 536 °FAverage value: 245 °C Grade Count:46
Melt Temperature 190 - 290 °C374 - 554 °FAverage value: 246 °C Grade Count:81
Mold Temperature 30.0 - 130 °C86.0 - 266 °FAverage value: 74.7 °C Grade Count:84
Drying Temperature 80.0 - 140 °C176 - 284 °FAverage value: 117 °C Grade Count:49
Moisture Content 0.0100 - 0.200 %0.0100 - 0.200 %Average value: 0.0614 % Grade Count:15
Injection Pressure 4.96 - 140 MPa720 - 20300 psiAverage value: 76.0 MPa Grade Count:41
Vent Depth 0.00127 - 0.00381 cm0.000500 - 0.00150 inAverage value: 0.00165 cm Grade Count:10

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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