Overview of materials for Acetal Copolymer, Unreinforced

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Overview of materials for Acetal Copolymer, Unreinforced
Categories:	Polymer; Thermoplastic; Acetal (Polyoxymethylene, POM); Acetal Copolymer, Unreinforced
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Acetal Copolymer, Unreinforced". 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	Original Value	Comments

Density	0.950 - 1.71 g/cc	Average value: 1.41 g/cc Grade Count:596
Water Absorption	0.0500 - 4.00 %	Average value: 0.412 % Grade Count:214
	0.330 - 0.330 % @Temperature 50.0 - 50.0 °C	Average value: 0.330 % Grade Count:3
	0.330 - 0.330 % @Time 86400 - 86400 sec	Average value: 0.330 % Grade Count:3
Moisture Absorption at Equilibrium	0.0200 - 2.30 %	Average value: 0.264 % Grade Count:157
Water Absorption at Saturation	0.220 - 8.00 %	Average value: 0.883 % Grade Count:95
Maximum Moisture Content	0.0200 - 0.150	Average value: 0.112 Grade Count:39
	0.200 - 0.300 @Temperature 100 - 100 °C	Average value: 0.250 Grade Count:2
	0.200 - 0.300 @Time 299 - 299 sec	Average value: 0.250 Grade Count:2
Linear Mold Shrinkage	0.00210 - 0.0360 cm/cm	Average value: 0.0204 cm/cm Grade Count:392
	0.0200 - 0.0220 cm/cm @Temperature 80.0 - 80.0 °C	Average value: 0.0207 cm/cm Grade Count:8
Linear Mold Shrinkage, Transverse	0.00210 - 0.0335 cm/cm	Average value: 0.0201 cm/cm Grade Count:162
	0.0180 - 0.0190 cm/cm @Temperature 80.0 - 80.0 °C	Average value: 0.0185 cm/cm Grade Count:8
Melt Flow	0.200 - 58.8 g/10 min	Average value: 14.3 g/10 min Grade Count:454

Mechanical Properties	Original Value	Comments
Hardness, Rockwell E	52.4 - 86.2	Average value: 61.5 Grade Count:4
Hardness, Rockwell M	30.0 - 97.0	Average value: 79.3 Grade Count:153
Hardness, Rockwell R	69.0 - 130	Average value: 104 Grade Count:72
Hardness, Shore D	70.0 - 86.0	Average value: 80.4 Grade Count:28
Ball Indentation Hardness	30.0 - 180 MPa	Average value: 137 MPa Grade Count:85
Tensile Strength, Ultimate	6.37 - 71.0 MPa	Average value: 56.5 MPa Grade Count:268
	28.0 - 68.0 MPa @Temperature -40.0 - 80.0 °C	Average value: 42.1 MPa Grade Count:3
Tensile Strength, Yield	21.0 - 75.8 MPa	Average value: 59.8 MPa Grade Count:368
	25.0 - 94.4582 MPa @Temperature -40.0 - 120 °C	Average value: 55.5 MPa Grade Count:5
Elongation at Break	1.50 - 250 %	Average value: 35.0 % Grade Count:519
	15.0 - 98.0 % @Temperature -40.0 - 90.0 °C	Average value: 84.0 % Grade Count:10
Elongation at Yield	6.50 - 50.0 %	Average value: 11.5 % Grade Count:202
	5.80 - 10.0 % @Temperature -40.0 - 80.0 °C	Average value: 8.37 % Grade Count:2
Modulus of Elasticity	0.586 - 11.7 GPa	Average value: 2.66 GPa Grade Count:376
	0.480 - 4.50 GPa @Temperature -40.0 - 90.0 °C	Average value: 1.71 GPa Grade Count:10
	2.41 - 2.81 GPa @Temperature 30.0 - 120 °C	Average value: 1.71 GPa Grade Count:1
	2.41 - 2.81 GPa @Thickness 1.50 - 4.00 mm	Average value: 1.71 GPa Grade Count:1
Flexural Yield Strength	24.0 - 862 MPa	Average value: 83.5 MPa Grade Count:371
Flexural Modulus	0.00144 - 7.38 GPa	Average value: 2.46 GPa Grade Count:436
Compressive Yield Strength	8.27 - 110 MPa	Average value: 50.1 MPa Grade Count:36
Compressive Modulus	1.03 - 2.76 GPa	Average value: 2.15 GPa Grade Count:17
Poissons Ratio	0.350 - 0.430	Average value: 0.363 Grade Count:6
Fatigue Strength	22.8 - 31.0 MPa	Average value: 27.1 MPa Grade Count:4
Shear Strength	40.0 - 55.2 MPa	Average value: 52.2 MPa Grade Count:20
Izod Impact, Notched	0.320 J/cm - NB	Average value: 1.16 J/cm Grade Count:185
	0.300 - 1.00 J/cm @Temperature -40.0 - -29.0 °C	Average value: 0.569 J/cm Grade Count:11
Izod Impact, Unnotched	0.363 J/cm - NB	Average value: 5.36 J/cm Grade Count:28
Izod Impact, Notched (ISO)	2.50 - 19.8 kJ/m²	Average value: 7.26 kJ/m² Grade Count:113
	3.99 - 7.00 kJ/m² @Temperature -40.0 - -30.0 °C	Average value: 5.61 kJ/m² Grade Count:30
Izod Impact, Unnotched (ISO)	100 kJ/m² - NB	Average value: 407 kJ/m² Grade Count:10
	100 - 100 kJ/m² @Temperature -30.0 - -30.0 °C	Average value: 100 kJ/m² Grade Count:1
Charpy Impact Unnotched	2.40 J/cm² - NB	Average value: 17.9 J/cm² Grade Count:157
	2.00 J/cm² - NB @Temperature -40.0 - -20.0 °C	Average value: 18.7 J/cm² Grade Count:89
Charpy Impact, Notched	0.140 - 1000 J/cm²	Average value: 0.703 J/cm² Grade Count:364
	0.250 J/cm² - NB @Temperature -40.0 - -20.0 °C	Average value: 0.605 J/cm² Grade Count:90
	1.30 - 1.30 J/cm² @Temperature -30.0 - -30.0 °C	Average value: 0.605 J/cm² Grade Count:1
	1.30 - 1.30 J/cm² @Thickness 4.00 - 4.00 mm	Average value: 0.605 J/cm² Grade Count:1
Gardner Impact	22.6 - 60.0 J	Average value: 33.5 J Grade Count:8
Tensile Impact Strength	5.78 - 1060 kJ/m²	Average value: 240 kJ/m² Grade Count:8
Falling Dart Impact	22.6 - 32.1 J	Average value: 27.8 J Grade Count:3
Instrumented Impact Total Energy	16.5 - 18.4 J	Average value: 17.2 J Grade Count:3
Coefficient of Friction	0.0980 - 0.800	Average value: 0.294 Grade Count:96
Coefficient of Friction, Static	0.110 - 0.330	Average value: 0.157 Grade Count:24
Tensile Creep Modulus, 1 hour	1800 - 2500 MPa	Average value: 2270 MPa Grade Count:15
Tensile Creep Modulus, 1000 hours	400 - 1450 MPa	Average value: 1210 MPa Grade Count:57
K (wear) Factor	0.200 - 10000 x 10^-8 mm³/N-M	Average value: 793 x 10^-8 mm³/N-M Grade Count:53
Limiting Pressure Velocity	0.100 - 0.600 MPa-m/sec	Average value: 0.360 MPa-m/sec Grade Count:4
Taber Abrasion, mg/1000 Cycles	14.0 - 350	Average value: 55.3 Grade Count:21

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.200 - 1.00e+16 ohm-cm	Average value: 1.74e+15 ohm-cm Grade Count:300
Surface Resistance	100 - 3.00e+16 ohm	Average value: 3.84e+15 ohm Grade Count:313
Static Decay	0.00300 - 2.00 sec	Average value: 1.34 sec Grade Count:6
Dielectric Constant	3.40 - 5.00	Average value: 3.83 Grade Count:157
Dielectric Strength	15.7 - 86.6 kV/mm	Average value: 26.2 kV/mm Grade Count:206
Dissipation Factor	0.00100 - 0.530	Average value: 0.0106 Grade Count:134
Dielectric Loss Index	0.00200 - 0.00800	Average value: 0.00418 Grade Count:8
Arc Resistance	1.90 - 240 sec	Average value: 121 sec Grade Count:23
Comparative Tracking Index	600 V	Average value: 600 V Grade Count:114
Hot Wire Ignition, HWI	0.000 - 15.0 sec	Average value: 9.13 sec Grade Count:4
High Amp Arc Ignition, HAI	120 arcs	Average value: 120 arcs Grade Count:4

Thermal Properties	Original Value	Comments
CTE, linear	11.0 - 216 µm/m-°C	Average value: 109 µm/m-°C Grade Count:320
CTE, linear, Transverse to Flow	20.0 - 180 µm/m-°C	Average value: 116 µm/m-°C Grade Count:112
Specific Heat Capacity	1.30 - 1.50 J/g-°C	Average value: 1.46 J/g-°C Grade Count:26
Thermal Conductivity	0.231 - 0.390 W/m-K	Average value: 0.304 W/m-K Grade Count:36
Melting Point	160 - 186 °C	Average value: 167 °C Grade Count:349
Maximum Service Temperature, Air	47.0 - 150 °C	Average value: 108 °C Grade Count:128
Deflection Temperature at 0.46 MPa (66 psi)	92.0 - 316 °C	Average value: 156 °C Grade Count:207
Deflection Temperature at 1.8 MPa (264 psi)	49.0 - 205 °C	Average value: 101 °C Grade Count:537
Vicat Softening Point	71.7 - 180 °C	Average value: 149 °C Grade Count:127
Heat Distortion Temperature	72.2 - 98.0 °C	Average value: 84.0 °C Grade Count:5
Minimum Service Temperature, Air	-50.0 - -20.0 °C	Average value: -40.7 °C Grade Count:29
Glass Transition Temp, Tg	-65.0 - -50.0 °C	Average value: -58.4 °C Grade Count:16
Decomposition Temperature	240 °C	Average value: 240 °C Grade Count:21
UL RTI, Electrical	50.0 - 110 °C	Average value: 104 °C Grade Count:7
UL RTI, Mechanical with Impact	50.0 - 95.0 °C	Average value: 87.1 °C Grade Count:6
UL RTI, Mechanical without Impact	50.0 - 100 °C	Average value: 91.7 °C Grade Count:6
Flammability, UL94	HB - V-2	Grade Count:335
Oxygen Index	15.0 - 18.0 %	Average value: 15.8 % Grade Count:4
Ignition Temperature	320 - 340 °C	Average value: 330 °C Grade Count:22

Processing Properties	Original Value	Comments
Processing Temperature	80.0 - 300 °C	Average value: 197 °C Grade Count:81
Nozzle Temperature	170 - 227 °C	Average value: 194 °C Grade Count:61
Melt Temperature	100 - 230 °C	Average value: 194 °C Grade Count:229
Mold Temperature	40.0 - 140 °C	Average value: 82.7 °C Grade Count:264
Injection Velocity	20.0 - 90.0 mm/sec	Average value: 41.1 mm/sec Grade Count:9
Drying Temperature	71.1 - 121 °C	Average value: 91.9 °C Grade Count:211
Moisture Content	0.0200 - 0.200 %	Average value: 0.110 % Grade Count:43
Dew Point	-31.7 °C	Average value: -31.7 °C Grade Count:3
Injection Pressure	2.76 - 118 MPa	Average value: 52.7 MPa Grade Count:73
Vent Depth	0.00127 cm	Average value: 0.00127 cm Grade Count:4

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 go back to viewing the property data in MatWeb's normal format.

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