Overview of materials for Acetal Copolymer, Impact Modified

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Overview of materials for Acetal Copolymer, Impact Modified
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Impact Modified
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Acetal Copolymer, Impact Modified". Each property range of values reported is minimum and maximum values of appropriate MatWeb entries. The comments report the average value, and number of data points used to calculate the average. The values are not necessarily typical of any specific grade, especially less common values and those that can be most affected by additives or processing methods.
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Physical Properties	Metric	English	Comments

Density	1.07 - 1.41 g/cc	0.0387 - 0.0509 lb/in³	Average value: 1.35 g/cc Grade Count:116
	1.14 - 1.14 g/cc @Temperature 205 - 205 °C	0.0412 - 0.0412 lb/in³ @Temperature 401 - 401 °F	Average value: 1.14 g/cc Grade Count:2
Water Absorption	0.200 - 1.10 %	0.200 - 1.10 %	Average value: 0.418 % Grade Count:32
Moisture Absorption at Equilibrium	0.200 - 0.350 %	0.200 - 0.350 %	Average value: 0.237 % Grade Count:16
Water Absorption at Saturation	0.650 - 1.20 %	0.650 - 1.20 %	Average value: 0.868 % Grade Count:38
Maximum Moisture Content	0.150	0.150	Average value: 0.150 Grade Count:5
	0.200 - 0.200 @Temperature 100 - 100 °C	0.200 - 0.200 @Temperature 212 - 212 °F	Average value: 0.200 Grade Count:2
	0.200 - 0.200 @Time 299 - 299 sec	0.200 - 0.200 @Time 0.0830 - 0.0830 hour	Average value: 0.200 Grade Count:2
Linear Mold Shrinkage	0.00700 - 0.0350 cm/cm	0.00700 - 0.0350 in/in	Average value: 0.0179 cm/cm Grade Count:78
Linear Mold Shrinkage, Transverse	0.00800 - 0.0210 cm/cm	0.00800 - 0.0210 in/in	Average value: 0.0163 cm/cm Grade Count:43
Melt Flow	0.600 - 27.8 g/10 min	0.600 - 27.8 g/10 min	Average value: 7.99 g/10 min Grade Count:80

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	18.7 - 78.0	18.7 - 78.0	Average value: 58.0 Grade Count:15
Hardness, Rockwell R	75.0 - 116	75.0 - 116	Average value: 99.6 Grade Count:12
Ball Indentation Hardness	35.0 - 120 MPa	5080 - 17400 psi	Average value: 88.6 MPa Grade Count:14
Tensile Strength, Ultimate	26.0 - 56.0 MPa	3770 - 8120 psi	Average value: 40.6 MPa Grade Count:38
Tensile Strength, Yield	23.0 - 68.9 MPa	3340 - 10000 psi	Average value: 44.3 MPa Grade Count:77
	22.0 - 80.0 MPa @Temperature -40.0 - 80.0 °C	3190 - 11600 psi @Temperature -40.0 - 176 °F	Average value: 51.0 MPa Grade Count:2
Elongation at Break	10.0 - 300 %	10.0 - 300 %	Average value: 73.1 % Grade Count:89
Elongation at Yield	6.00 - 85.0 %	6.00 - 85.0 %	Average value: 14.8 % Grade Count:64
	7.50 - 17.0 % @Temperature -40.0 - 80.0 °C	7.50 - 17.0 % @Temperature -40.0 - 176 °F	Average value: 12.3 % Grade Count:2
Modulus of Elasticity	0.772 - 2.45 GPa	112 - 355 ksi	Average value: 1.70 GPa Grade Count:73
Flexural Yield Strength	24.0 - 107 MPa	3480 - 15500 psi	Average value: 50.9 MPa Grade Count:53
Flexural Modulus	0.750 - 3.14 GPa	109 - 455 ksi	Average value: 1.65 GPa Grade Count:92
Poissons Ratio	0.430 - 0.440	0.430 - 0.440	Average value: 0.433 Grade Count:3
Izod Impact, Notched	0.490 - 100 J/cm	0.918 - 187 ft-lb/in	Average value: 1.20 J/cm Grade Count:21
	0.590 - 0.907 J/cm @Temperature -40.0 - -30.0 °C	1.11 - 1.70 ft-lb/in @Temperature -40.0 - -22.0 °F	Average value: 0.849 J/cm Grade Count:4
	1.03 - 1.03 J/cm @Temperature -30.0 - -30.0 °C	1.93 - 1.93 ft-lb/in @Temperature -22.0 - -22.0 °F	Average value: 0.849 J/cm Grade Count:1
	1.03 - 1.03 J/cm @Thickness 6.40 - 6.40 mm	1.93 - 1.93 ft-lb/in @Thickness 0.252 - 0.252 in	Average value: 0.849 J/cm Grade Count:1
Izod Impact, Notched (ISO)	7.00 - 90.0 kJ/m²	3.33 - 42.8 ft-lb/in²	Average value: 17.1 kJ/m² Grade Count:19
	14.0 - 20.0 kJ/m² @Temperature -40.0 - -30.0 °C	6.66 - 9.52 ft-lb/in² @Temperature -40.0 - -22.0 °F	Average value: 17.0 kJ/m² Grade Count:2
Charpy Impact Unnotched	6.00 J/cm² - NB	28.6 ft-lb/in² - NB	Average value: 14.6 J/cm² Grade Count:56
	-4.62 J/cm² - NB @Temperature -30.0 - -30.0 °C	-22.0 ft-lb/in² - NB @Temperature -22.0 - -22.0 °F	Average value: 16.9 J/cm² Grade Count:44
Charpy Impact, Notched	0.500 - 1000 J/cm²	2.38 - 4760 ft-lb/in²	Average value: 1.97 J/cm² Grade Count:90
	0.504 - 1.806 J/cm² @Temperature -30.0 - -30.0 °C	2.40 - 8.595 ft-lb/in² @Temperature -22.0 - -22.0 °F	Average value: 0.935 J/cm² Grade Count:49
Coefficient of Friction	0.400 - 0.500	0.400 - 0.500	Average value: 0.483 Grade Count:3
Penetration	5.00 - 55.0	5.00 - 55.0	Average value: 21.0 Grade Count:7
Tensile Creep Modulus, 1 hour	700 - 1850 MPa	102000 - 268000 psi	Average value: 1470 MPa Grade Count:24
Tensile Creep Modulus, 1000 hours	400 - 1050 MPa	58000 - 152000 psi	Average value: 839 MPa Grade Count:24
K (wear) Factor	1.00 - 600 x 10^-8 mm³/N-M	0.496 - 298 x 10^-10 in³-min/ft-lb-hr	Average value: 213 x 10^-8 mm³/N-M Grade Count:3

Electrical Properties	Metric	English	Comments
Electrical Resistivity	10000 - 1.00e+16 ohm-cm	10000 - 1.00e+16 ohm-cm	Average value: 1.48e+15 ohm-cm Grade Count:57
Surface Resistance	260 - 1.00e+16 ohm	260 - 1.00e+16 ohm	Average value: 2.13e+15 ohm Grade Count:57
Dielectric Constant	3.40 - 5.30	3.40 - 5.30	Average value: 4.06 Grade Count:39
Dielectric Strength	17.7 - 86.6 kV/mm	450 - 2200 kV/in	Average value: 30.8 kV/mm Grade Count:34
Dissipation Factor	0.000600 - 0.0425	0.000600 - 0.0425	Average value: 0.0116 Grade Count:35
Comparative Tracking Index	600 V	600 V	Average value: 600 V Grade Count:30

Thermal Properties	Metric	English	Comments
CTE, linear	70.0 - 142 µm/m-°C	38.9 - 78.9 µin/in-°F	Average value: 123 µm/m-°C Grade Count:69
CTE, linear, Transverse to Flow	110 - 180 µm/m-°C	61.1 - 100 µin/in-°F	Average value: 125 µm/m-°C Grade Count:27
Specific Heat Capacity	1.48 J/g-°C	0.354 BTU/lb-°F	Average value: 1.48 J/g-°C Grade Count:5
Melting Point	162 - 178 °C	324 - 352 °F	Average value: 167 °C Grade Count:82
Deflection Temperature at 0.46 MPa (66 psi)	95.0 - 214 °C	203 - 417 °F	Average value: 136 °C Grade Count:32
Deflection Temperature at 1.8 MPa (264 psi)	40.0 - 100 °C	104 - 212 °F	Average value: 76.1 °C Grade Count:100
Vicat Softening Point	60.0 - 161 °C	140 - 322 °F	Average value: 124 °C Grade Count:25
Flammability, UL94	HB	HB	Grade Count:44
Flame Spread	41.0 - 100 mm/min	1.61 - 3.94 in/min	Average value: 65.8 mm/min Grade Count:4

Processing Properties	Metric	English	Comments
Processing Temperature	20.0 - 220 °C	68.0 - 428 °F	Average value: 112 °C Grade Count:37
Nozzle Temperature	170 - 204 °C	338 - 400 °F	Average value: 191 °C Grade Count:7
Die Temperature	180 - 200 °C	356 - 392 °F	Average value: 192 °C Grade Count:26
Melt Temperature	160 - 220 °C	320 - 428 °F	Average value: 188 °C Grade Count:55
Mold Temperature	40.0 - 120 °C	104 - 248 °F	Average value: 71.9 °C Grade Count:40
Injection Velocity	20.0 - 50.0 mm/sec	0.787 - 1.97 in/sec	Average value: 35.0 mm/sec Grade Count:3
Drying Temperature	70.0 - 121 °C	158 - 250 °F	Average value: 93.9 °C Grade Count:59
Moisture Content	0.0500 - 0.150 %	0.0500 - 0.150 %	Average value: 0.111 % Grade Count:19
Injection Pressure	3.50 - 120 MPa	508 - 17400 psi	Average value: 75.7 MPa Grade Count:43
Annealing Temperature	160 °C	320 °F	Average value: 160 °C Grade Count:3
Hot-Working Temperature	190 - 200 °C	374 - 392 °F	Average value: 195 °C Grade Count:5

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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