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Ensinger PEI

Kolon SPESIN® KP270EX Polybutylene Terephthalate (PBT)
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT); Polybutylene Terephthalate (PBT), Extrusion Grade
Material Notes: PBT, high viscosity, extrusion grade. General Purpose

Information provided by Kolon Plastic, Inc.
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
Density 1.31 g/cc0.0473 lb/in³ASTM D792
Water Absorption 0.080 %
@Time 86400 sec		0.080 %
@Time 24.0 hour		ASTM D570
Viscosity Number 160 cm³/g1.6 dl/gPhenol:1,2 Dichlorobenzene=1:1; ISO 1628-5
Melt Flow 8.0 - 12 g/10 min
@Load 2.16 kg,
Temperature 250 °C		8.0 - 12 g/10 min
@Load 4.76 lb,
Temperature 482 °F		ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength at Break 51.0 MPa
@Thickness 3.20 mm		7400 psi
@Thickness 0.126 in		50 mm/min; ASTM D638
Elongation at Break >= 100 %
@Thickness 3.20 mm		>= 100 %
@Thickness 0.126 in		50 mm/min; ASTM D638
Flexural Strength 90.0 MPa
@Thickness 3.20 mm		13100 psi
@Thickness 0.126 in		5 mm/min; ASTM D790
Flexural Modulus 2.55 GPa
@Thickness 3.20 mm		370 ksi
@Thickness 0.126 in		5 mm/min; ASTM D790
Izod Impact, Notched 0.590 J/cm
@Thickness 6.40 mm,
Temperature 23.0 °C		1.11 ft-lb/in
@Thickness 0.252 in,
Temperature 73.4 °F		ASTM D256
 
Thermal PropertiesMetricEnglishComments
Melting Point 224 °C435 °F20°C/min; ASTM D1525
Deflection Temperature at 0.46 MPa (66 psi) 60.0 °C140 °FASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 170 °C338 °FASTM D648
Flammability, UL94 HB
@Thickness 0.800 mm		HB
@Thickness 0.0315 in
 
Processing PropertiesMetricEnglishComments
Rear Barrel Temperature 250 - 265 °C482 - 509 °F
Middle Barrel Temperature 260 - 270 °C500 - 518 °F
Front Barrel Temperature 260 - 270 °C500 - 518 °F
Nozzle Temperature 260 - 275 °C500 - 527 °F
Drying Temperature 100 - 120 °C
@Time 10800 - 18000 sec		212 - 248 °F
@Time 3.00 - 5.00 hour		Dehumidifying Dryer
Moisture Content <= 0.040 %<= 0.040 %
 
Descriptive Properties
Compression Ratio3:1
Extruder (L/D)24

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.

PKOKZ744 / 255755

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