Celanese Celcon® MC270 POM, Mineral Reinforced

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Celanese Celcon® MC270 POM, Mineral Reinforced
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Mineral Filled
Material Notes:	Celcon« MC270 is a mineral coupled acetal copolymer designed for applications requiring improved stiffness, lower mold shrinkage and reduced warpage while maintaining the mechanical performance characteristics of an unfilled Celcon« M270 grade. Information provided by Celanese
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Physical Properties	Metric	English	Comments

Specific Gravity	1.48 g/cc	1.48 g/cc	ASTM D792
Density	1.48 g/cc	0.0535 lb/in³	ISO 1183
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	0.019 cm/cm	0.019 in/in	ISO 294-4
	0.019 cm/cm	0.019 in/in	ASTM D955
Linear Mold Shrinkage, Transverse	0.016 cm/cm	0.016 in/in	ISO 294-4
	0.016 cm/cm	0.016 in/in	ASTM D955

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	53.1 MPa	7700 psi	ASTM D638
	57.0 MPa	8270 psi	50mm/min; ISO 527-2/1A
Elongation at Yield	7.0 %	7.0 %	50mm/min; ISO 527-2/1A
Tensile Modulus	3.15 GPa	457 ksi	50mm/min; ISO 527-2/1A
Flexural Strength	77.0 MPa	11200 psi	ISO 178
Flexural Modulus	2.96 GPa	430 ksi	ASTM D790
	3.10 GPa	450 ksi	ISO 178
Izod Impact, Notched	0.534 J/cm	1.00 ft-lb/in	ASTM D256
	0.320 J/cm @Temperature -40.0 °C	0.600 ft-lb/in @Temperature -40.0 °F	ASTM D256
	0.481 J/cm @Temperature 82.2 °C	0.900 ft-lb/in @Temperature 180 °F	ASTM D256
Izod Impact, Notched (ISO)	5.50 kJ/m²	2.62 ft-lb/in²	ISO 180/1A
Charpy Impact, Notched	0.540 J/cm²	2.57 ft-lb/in²	ISO 179/1eA
	0.450 J/cm² @Temperature -30.0 °C	2.14 ft-lb/in² @Temperature -22.0 °F	ISO 179/1eA

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	120 µm/m-°C	66.7 µin/in-°F	ISO 11359-2
Melting Point	165 °C	329 °F	10°C/min; ISO 11357-1,-2,-3
	165 °C	329 °F	ASTM D3418
Deflection Temperature at 1.8 MPa (264 psi)	93.3 °C	200 °F	ASTM D648
	101 °C	214 °F	ISO 75-1, -2

Processing Properties	Metric	English	Comments
Processing Temperature	80.0 - 120 °C	176 - 248 °F	cavity
	190 - 200 °C	374 - 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
Pellets	Yes
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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