Celanese Celcon® M140 POM, Unfilled

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Celanese Celcon® M140 POM, Unfilled
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM)
Material Notes:	Celcon« acetal copolymer grade M140 is a moderately high flow general purpose injection molding grade. It is designed for use in applications requiring some enhanced flow characteristics over the standard Celcon« M90 material. Information provided by Celanese
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Physical Properties	Metric	English	Comments

Specific Gravity	1.41 g/cc	1.41 g/cc	ASTM D792
Density	1.41 g/cc	0.0509 lb/in³	ISO 1183
Density of Compound	1.20 g/cc	0.0434 lb/in³
Moisture Absorption	0.200 %	0.200 %	23°C/50%RH; ISO 62
Water Absorption at Saturation	0.75 %	0.75 %	ISO 62
Linear Mold Shrinkage, Flow	0.018 cm/cm	0.018 in/in	ISO 294-4
	0.022 cm/cm	0.022 in/in	ASTM D955
Linear Mold Shrinkage, Transverse	0.017 cm/cm	0.017 in/in	ISO 294-4
	0.018 cm/cm	0.018 in/in	ASTM D955
Melt Flow	12 g/10 min @Load 2.16 kg, Temperature 190 °C	12 g/10 min @Load 4.76 lb, Temperature 374 °F	[cm3/10min]; ISO 1133

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	60.7 MPa	8800 psi	ASTM D638
	65.0 MPa	9430 psi	50mm/min; ISO 527-2/1A
	34.5 MPa @Temperature 71.1 °C	5000 psi @Temperature 160 °F	ASTM D638
	94.5 MPa @Temperature -40.0 °C	13700 psi @Temperature -40.0 °F	ASTM D638
Elongation at Yield	9.0 %	9.0 %	50mm/min; ISO 527-2/1A
Tensile Modulus	2.74 GPa	397 ksi	50mm/min; ISO 527-2/1A
Flexural Modulus	2.59 GPa	375 ksi	ASTM D790
	2.64 GPa	383 ksi	ISO 178
	0.689 GPa @Temperature 104 °C	100 ksi @Temperature 220 °F	ASTM D790
	1.24 GPa @Temperature 71.1 °C	180 ksi @Temperature 160 °F	ASTM D790
Izod Impact, Notched	0.587 J/cm	1.10 ft-lb/in	ASTM D256
	0.481 J/cm @Temperature -40.0 °C	0.900 ft-lb/in @Temperature -40.0 °F	ASTM D256
Izod Impact, Notched (ISO)	5.70 kJ/m²	2.71 ft-lb/in²	ISO 180/1A
Charpy Impact, Notched	0.600 J/cm²	2.86 ft-lb/in²	ISO 179/1eA
Tensile Creep Modulus, 1 hour	2350 MPa	341000 psi	ISO 899-1
Tensile Creep Modulus, 1000 hours	1300 MPa	189000 psi	ISO 899-1

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	100 µm/m-°C	55.6 µin/in-°F	ISO 11359-2
CTE, linear, Transverse to Flow	100 µm/m-°C	55.6 µin/in-°F	ISO 11359-2
Specific Heat Capacity	2.21 J/g-°C	0.528 BTU/lb-°F
Thermal Conductivity	0.155 W/m-K	1.08 BTU-in/hr-ft²-°F
Melting Point	166 °C	331 °F	10°C/min; ISO 11357-1,-2,-3
Deflection Temperature at 0.46 MPa (66 psi)	156 °C	313 °F	ISO 75-1, -2
Deflection Temperature at 1.8 MPa (264 psi)	102 °C	216 °F	ISO 75-1, -2
	110 °C	230 °F	ASTM D648

Processing Properties	Metric	English	Comments
Processing Temperature	80.0 - 120 °C	176 - 248 °F	cavity
	180 - 200 °C	356 - 392 °F	hot runner
Zone 1	170 - 180 °C	338 - 356 °F
Zone 2	180 - 190 °C	356 - 374 °F
Zone 3	180 - 190 °C	356 - 374 °F
Zone 4	190 - 200 °C	374 - 392 °F
Die Temperature	190 - 200 °C	374 - 392 °F
Melt Temperature	180 - 200 °C	356 - 392 °F
Drying Temperature	80.0 - 100 °C	176 - 212 °F
Dry Time	3.00 hour	3.00 hour
Injection Pressure	60.0 - 120 MPa	8700 - 17400 psi
Hold Pressure	60.0 - 120 MPa	8700 - 17400 psi
Back Pressure	<= 4.00 MPa	<= 580 psi

Descriptive Properties
Injection molding	Yes
Injection speed	slow-medium
Pellets	Yes
Processing conditions acc. ISO	9988-2
Profile extrusion	No

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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