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Ensinger PEI

Celanese Hostaform® S 27064 XAP² ™ POM, Impact Modified
Categories: Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Impact Modified
Material Notes: Polyacetal copolymer, impact modified
Impact modified, low emission

Information provided by Celanese
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Physical PropertiesMetricEnglishComments
Density 1.37 g/cc0.0495 lb/in³ISO 1183
Water Absorption 0.65 %0.65 %ISO 62
Linear Mold Shrinkage, Flow 0.018 cm/cm0.018 in/inISO 294-4
Linear Mold Shrinkage, Transverse 0.017 cm/cm0.017 in/inISO 294-4
Melt Flow 18 g/10 min
@Load 2.16 kg,
Temperature 190 °C		18 g/10 min
@Load 4.76 lb,
Temperature 374 °F		(MVR) cm³/10min; ISO 1133
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Yield 44.0 MPa6380 psi50mm/min; ISO 527-2/1A
Elongation at Break 35 %35 %50mm/min; ISO 527-2/1A
Elongation at Yield 10 %10 %50mm/min; ISO 527-2/1A
Tensile Modulus 1.70 GPa247 ksi1mm/min; ISO 527-2/1A
Flexural Modulus 1.70 GPa247 ksiISO 178
Charpy Impact Unnotched 15.0 J/cm²71.4 ft-lb/in²Partial Break; ISO 179/1eU
 11.0 J/cm²
@Temperature -30.0 °C		52.3 ft-lb/in²
@Temperature -22.0 °F		ISO 179/1eU
Charpy Impact, Notched 1.10 J/cm²5.23 ft-lb/in²ISO 179/1eA
 0.600 J/cm²
@Temperature -30.0 °C		2.86 ft-lb/in²
@Temperature -22.0 °F		ISO 179/1eA
Tensile Creep Modulus, 1 hour 1400 MPa203000 psiISO 899-1
Tensile Creep Modulus, 1000 hours 800 MPa116000 psiISO 899-1
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+13 ohm-cm1.00e+13 ohm-cmIEC 60093
Surface Resistance 1.00e+13 ohm1.00e+13 ohmIEC 60093
Dielectric Constant  4.4
@Frequency 100 Hz		4.4
@Frequency 100 Hz		IEC 60250
 4.4
@Frequency 1e+6 Hz		4.4
@Frequency 1e+6 Hz		IEC 60250
Dielectric Strength 28.0 kV/mm711 kV/inIEC 60243-1
Dissipation Factor  0.010
@Frequency 100 Hz		0.010
@Frequency 100 Hz		IEC 60250
 0.020
@Frequency 1e+6 Hz		0.020
@Frequency 1e+6 Hz		IEC 60250
Comparative Tracking Index 600 V600 VIEC 60112
 
Thermal PropertiesMetricEnglishComments
CTE, linear 130 µm/m-°C72.2 µin/in-°FISO 11359-2
Melting Point 166 °C331 °F10°C/min; ISO 11357-1,-2,-3
Deflection Temperature at 1.8 MPa (264 psi) 77.0 °C171 °FISO 75-1, -2
 
Processing PropertiesMetricEnglishComments
Processing Temperature 20.0 - 30.0 °C68.0 - 86.0 °F
 60.0 - 70.0 °C140 - 158 °FCavity temperature
Feed Temperature 60.0 - 80.0 °C140 - 176 °F
Zone 1 170 - 180 °C338 - 356 °F
Zone 2 180 - 190 °C356 - 374 °F
Zone 3 190 - 200 °C374 - 392 °F
Zone 4 190 - 200 °C374 - 392 °F
Die Temperature 190 - 200 °C374 - 392 °F
Melt Temperature 190 - 200 °C374 - 392 °F
Drying Temperature 100 - 120 °C212 - 248 °F
Dry Time 3.00 - 4.00 hour3.00 - 4.00 hour
Moisture Content 0.15 %0.15 %Necessary low maximum residual
Injection Pressure 60.0 - 120 MPa8700 - 17400 psi
Hold Pressure 60.0 - 120 MPa8700 - 17400 psi
Back Pressure 2.00 MPa290 psi
Screw Speed  70 rpm
@Diameter 55.0 mm		70 rpm
@Diameter 2.17 in
 100 rpm
@Diameter 40.0 mm		100 rpm
@Diameter 1.57 in
 150 rpm
@Diameter 25.0 mm		150 rpm
@Diameter 0.984 in
Hot-Working Temperature 190 - 200 °C374 - 392 °F
 
Descriptive Properties
Injection moldingYes
Injection speedslow-medium
Longer pre-drying times/storageThe product can then be stored in standard conditions until processed.
Pre-dryingDrying is not normally required with proper storage
Processing conditionsISO 9988
Processing NotesEmission according to VDA 275 < 5 mg/kg (natural colored grades)

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.

PHCR378 / 158947

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