Celanese Celcon® M90™ POM, Unfilled

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Celanese Celcon® M90™ POM, Unfilled
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM)
Material Notes:	Celcon acetal copolymer grade M90Ö is a medium viscosity polymer providing optimum performance in general purpose injection molding and extrusion of thin walled tubing and thin gauge film. This grade provides overall excellent performance in many applications. 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	0.020 cm/cm	0.020 in/in	ISO 294-4
	0.022 cm/cm	0.022 in/in	ASTM D955
Linear Mold Shrinkage, Transverse	0.018 cm/cm	0.018 in/in	ASTM D955
	0.019 cm/cm	0.019 in/in	ISO 294-4
Melt Flow	9.0 g/10 min	9.0 g/10 min	ASTM D1238
	8.0 g/10 min @Load 2.16 kg, Temperature 190 °C	8.0 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
	66.0 MPa	9570 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	10 %	10 %	50mm/min; ISO 527-2/1A
Tensile Modulus	2.76 GPa	400 ksi	50mm/min; ISO 527-2/1A
Flexural Modulus	2.55 GPa	370 ksi	ISO 178
	2.59 GPa	375 ksi	ASTM D790
	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	0.694 J/cm	1.30 ft-lb/in	ASTM D256
	0.534 J/cm @Temperature -40.0 °C	1.00 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 Unnotched	18.8 J/cm²	89.5 ft-lb/in²	ISO 179/1eU
	18.1 J/cm² @Temperature -30.0 °C	86.1 ft-lb/in² @Temperature -22.0 °F	ISO 179/1eU
Charpy Impact, Notched	0.600 J/cm²	2.86 ft-lb/in²	ISO 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	2450 MPa	355000 psi	ISO 899-1
Tensile Creep Modulus, 1000 hours	1350 MPa	196000 psi	ISO 899-1

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+14 ohm-cm	1.00e+14 ohm-cm	ASTM D257
	8.00e+14 ohm-cm	8.00e+14 ohm-cm	IEC 60093
Surface Resistance	3.00e+16 ohm	3.00e+16 ohm	IEC 60093

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	120 µm/m-°C	66.7 µin/in-°F	ISO 11359-2
CTE, linear, Transverse to Flow	120 µm/m-°C	66.7 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	165 °C	329 °F	10°C/min; ISO 11357-1,-2,-3
	165 °C	329 °F	ASTM D3418
Deflection Temperature at 0.46 MPa (66 psi)	158 °C	316 °F	ISO 75-1, -2
Deflection Temperature at 1.8 MPa (264 psi)	101 °C	214 °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
Ejection Temperature	140 °C	284 °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
Eff. thermal diffusivity	4.85E-08		[m^2/s]
Injection molding	Yes
Injection speed	slow-medium
Pellets	Yes
Processing conditions acc. ISO	9988-2
Profile extrusion	Yes

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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PHCQ131 / 178586

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