Celanese Hostaform® S 9243 XAP2™ LS POM, Impact Modified

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Celanese Hostaform® S 9243 XAP2™ LS POM, Impact Modified
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Impact Modified
Material Notes:	POM copolymer, modified It is normally not necessary to dry HOSTAFORM. However, should there be surface moisture (condensate) on the molding compound as a result of incorrect storage, drying is required. A circulating air drying cabinet can be used for this purpose if the granul The product can then be stored in standard conditions until processed. Information provided by Celanese Corporation.
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Physical Properties	Metric	English	Comments

Density	1.33 g/cc	0.0480 lb/in³	ISO 1183
Water Absorption at Saturation	1.0 %	1.0 %	ISO 62
Linear Mold Shrinkage, Flow	0.019 cm/cm	0.019 in/in	ISO 294-4
Linear Mold Shrinkage, Transverse	0.018 cm/cm	0.018 in/in	ISO 294-4

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	44.0 MPa	6380 psi	50mm/min; ISO 527-2/1A
Elongation at Break	40 %	40 %	50mm/min; ISO 527-2/1A
Elongation at Yield	9.0 %	9.0 %	50mm/min; ISO 527-2/1A
Tensile Modulus	1.95 GPa	283 ksi	1mm/min; ISO 527-2/1A
Flexural Modulus	1.85 GPa	268 ksi	ISO 178
Charpy Impact Unnotched	NB	NB	ISO 179/1eU
	20.0 J/cm² @Temperature -30.0 °C	95.2 ft-lb/in² @Temperature -22.0 °F	ISO 179/1eU
Charpy Impact, Notched	1.50 J/cm²	7.14 ft-lb/in²	ISO 179/1eA
	0.900 J/cm² @Temperature -30.0 °C	4.28 ft-lb/in² @Temperature -22.0 °F	ISO 179/1eA
Tensile Creep Modulus, 1 hour	1700 MPa	247000 psi	ISO 899-1
Tensile Creep Modulus, 1000 hours	950 MPa	138000 psi	ISO 899-1

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+11 ohm-cm	1.00e+11 ohm-cm	IEC 60093
Surface Resistance	1.00e+13 ohm	1.00e+13 ohm	IEC 60093
Dielectric Constant	3.8 @Frequency 1e+6 Hz	3.8 @Frequency 1e+6 Hz	IEC 60250
	3.8 @Frequency 100 Hz	3.8 @Frequency 100 Hz	IEC 60250
Dissipation Factor	0.0030 @Frequency 100 Hz	0.0030 @Frequency 100 Hz	IEC 60250
	0.0060 @Frequency 1e+6 Hz	0.0060 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	600 V	600 V	IEC 60112

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	120 µm/m-°C	66.7 µin/in-°F	ISO 11359-2
Melting Point	166 °C	331 °F	ISO 11357-1,-2,-3
Deflection Temperature at 1.8 MPa (264 psi)	75.0 °C	167 °F	ISO 75-1, -2
Vicat Softening Point	130 °C	266 °F	B50 (50°C/h 50N); ISO 306

Processing Properties	Metric	English	Comments
Processing Temperature	20.0 - 30.0 °C	68.0 - 86.0 °F	hopper
	60.0 - 80.0 °C	140 - 176 °F	cavity
Feed Temperature	60.0 - 80.0 °C	140 - 176 °F
Zone 1	170 - 180 °C	338 - 356 °F
Zone 2	180 - 190 °C	356 - 374 °F
Zone 3	190 - 200 °C	374 - 392 °F
Zone 4	190 - 200 °C	374 - 392 °F
Die Temperature	190 - 200 °C	374 - 392 °F
Melt Temperature	190 - 200 °C	374 - 392 °F
Drying Temperature	100 - 120 °C	212 - 248 °F
Dry Time	3 - 4 hour	3 - 4 hour
Moisture Content	0.15 %	0.15 %	Necessary low maximum
Injection Pressure	60.0 - 120 MPa	8700 - 17400 psi
Hold Pressure	60.0 - 120 MPa	8700 - 17400 psi
Back Pressure	<= 2.00 MPa	<= 290 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 °C	374 - 392 °F

Descriptive Properties
Injection molding	Yes
Injection speed	slow-medium
Melt volume rate (MVR), cm³/10min	4
MVR test load, kg	2.16
MVR test temperature, °C	190
Processing conditions acc. ISO	9988-2

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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PHCS398 / 123813

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