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Rulon Bearings

Covestro Makroblend® KU 2-7609 Polycarbonate + PBT, Mineral Filled Impact Grade
Categories: Polymer; Thermoplastic; Polycarbonate (PC); Polyester, TP; Polybutylene Terephthalate (PBT)
Material Notes: PC+PBT)-blend, impact modified, Injection molding grade, 20% mineral filled

As of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.
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 0.700 g/cc0.0253 lb/in³ISO 60
Density 1.30 g/cc0.0470 lb/in³ISO 1183
Filler Content 20 %20 %Method A; b.o. ISO 3451-1
Moisture Absorption at Equilibrium 0.20 %0.20 %ISO 62
Water Absorption at Saturation 0.80 %0.80 %ISO 62
Linear Mold Shrinkage, Flow 0.0010 - 0.0020 cm/cm0.0010 - 0.0020 in/inPost
 0.0040 - 0.0060 cm/cm0.0040 - 0.0060 in/in
Melt Flow 14 g/10 min
@Load 5.00 kg,
Temperature 260 °C		14 g/10 min
@Load 11.0 lb,
Temperature 500 °F		ISO 1133
 
Mechanical PropertiesMetricEnglishComments
Ball Indentation Hardness 90.0 MPa13100 psiISO 3795
Tensile Strength at Break 50.0 MPa7250 psi5 mm/min; ISO 527-1/-2
Tensile Strength, Yield 50.0 MPa7250 psi5 mm/min; ISO 527-1/-2
Elongation at Yield 3.0 %3.0 %5 mm/min; ISO 527-1/-2
Tensile Modulus 3.40 GPa493 ksi1 mm/min; ISO 527-1/-2
Flexural Strength 75.0 MPa10900 psi2 mm/min; ISO 178
Flexural Yield Strength 73.0 MPa
@Strain 3.5 %		10600 psi
@Strain 3.5 %		2 mm/min; ISO 178
Flexural Modulus 3.40 GPa493 ksi2 mm/min; ISO 178
Flexural Strain at Yield 5.0 %5.0 %2 mm/min; ISO 178
Izod Impact, Notched (ISO) 20.0 kJ/m²
@Temperature 23.0 °C		9.52 ft-lb/in²
@Temperature 73.4 °F		ISO 180-A
Izod Impact, Unnotched (ISO)  80.0 kJ/m²
@Temperature -30.0 °C		38.1 ft-lb/in²
@Temperature -22.0 °F		ISO 180-1C
 120 kJ/m²
@Temperature 23.0 °C		57.1 ft-lb/in²
@Temperature 73.4 °F		ISO 180-1C
Charpy Impact Unnotched  1.15 J/cm²
@Temperature -30.0 °C		5.47 ft-lb/in²
@Temperature -22.0 °F		ISO 179-1eU
 15.5 J/cm²
@Temperature 23.0 °C		73.8 ft-lb/in²
@Temperature 73.4 °F		ISO 179-1eU
Charpy Impact, Notched 1.00 J/cm²
@Temperature 23.0 °C		4.76 ft-lb/in²
@Temperature 73.4 °F		ISO 179-1eA
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity >= 1.00e+15 ohm-cm>= 1.00e+15 ohm-cmIEC 60093
Surface Resistance >= 1.00e+17 ohm>= 1.00e+17 ohmIEC 60093
Dielectric Constant  3.1
@Frequency 1e+6 Hz		3.1
@Frequency 1e+6 Hz		IEC 60250
 3.2
@Frequency 100 Hz		3.2
@Frequency 100 Hz		IEC 60250
Dielectric Strength 34.0 kV/mm864 kV/in1 mm; IEC 60243-1
Dissipation Factor  0.0026
@Frequency 100 Hz		0.0026
@Frequency 100 Hz		IEC 60250
 0.0095
@Frequency 1e+6 Hz		0.0095
@Frequency 1e+6 Hz		IEC 60250
Comparative Tracking Index 125 V125 VCIT M; Solution B; IEC 60112
 250 V250 VSolution A; IEC 60112
 
Thermal PropertiesMetricEnglishComments
CTE, linear, Parallel to Flow 70.0 µm/m-°C
@Temperature 23.0 - 55.0 °C		38.9 µin/in-°F
@Temperature 73.4 - 131 °F		ISO 11359-1/-2
CTE, linear, Transverse to Flow 70.0 µm/m-°C
@Temperature 23.0 - 55.0 °C		38.9 µin/in-°F
@Temperature 73.4 - 131 °F		ISO 11359-1/-2
Melting Point 221 °C430 °FISO 11357-1,-3
Deflection Temperature at 0.46 MPa (66 psi) 106 °C223 °FISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi) 93.0 °C199 °FISO 75-1/-2
Flammability, UL94  HB
@Thickness 1.60 mm		HB
@Thickness 0.0630 in		IEC 60695-11-10
 HB
@Thickness 0.800 mm		HB
@Thickness 0.0315 in		IEC 60695-11-10
Oxygen Index 21 %21 %Method A; ISO 4589-1/-2
Glow Wire Flammability Index 800 °C
@Thickness 50.8 mm		1470 °F
@Thickness 2.00 in		IEC 60695-2-12
 
Processing PropertiesMetricEnglishComments
Melt Temperature 260 °C500 °FInjection Molding; ISO 294
Mold Temperature 70.0 °C158 °FInjection Molding; ISO 10724
Injection Velocity 200 mm/sec7.87 in/secISO 294

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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