Overview of materials for PEKK, Unreinforced

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Overview of materials for PEKK, Unreinforced
Categories:	Polymer; Thermoplastic; Polyketone; PEKK, Unreinforced
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "PEKK, 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	Metric	English	Comments

Density	1.27 - 1.31 g/cc	0.0459 - 0.0473 lb/in³	Average value: 1.28 g/cc Grade Count:20
Water Absorption	0.100 - 0.600 %	0.100 - 0.600 %	Average value: 0.260 % Grade Count:5
Moisture Absorption at Equilibrium	0.150 - 0.600 %	0.150 - 0.600 %	Average value: 0.300 % Grade Count:3
Linear Mold Shrinkage	0.00500 - 0.0160 cm/cm	0.00500 - 0.0160 in/in	Average value: 0.00950 cm/cm Grade Count:4
Melt Flow	6.00 - 120 g/10 min	6.00 - 120 g/10 min	Average value: 30.3 g/10 min Grade Count:12

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	86.0 - 88.0	86.0 - 88.0	Average value: 87.3 Grade Count:3
Tensile Strength, Ultimate	40.6 - 111 MPa	5890 - 16100 psi	Average value: 76.2 MPa Grade Count:13
	25.9 - 116.5 MPa @Temperature -184 - 149 °C	3760 - 16900 psi @Temperature -300 - 300 °F	Average value: 68.0 MPa Grade Count:1
Tensile Strength, Yield	40.6 - 95.0 MPa	5890 - 13800 psi	Average value: 78.7 MPa Grade Count:5
Elongation at Break	0.940 - 80.0 %	0.940 - 80.0 %	Average value: 13.4 % Grade Count:13
	1.20 - 23.5 % @Temperature -184 - 149 °C	1.20 - 23.5 % @Temperature -300 - 300 °F	Average value: 5.76 % Grade Count:1
Elongation at Yield	0.580 - 4.89 %	0.580 - 4.89 %	Average value: 3.61 % Grade Count:5
Modulus of Elasticity	2.68 - 6.56 GPa	389 - 952 ksi	Average value: 3.61 GPa Grade Count:20
	1.441 - 8.074 GPa @Temperature -184 - 149 °C	209.0 - 1171 ksi @Temperature -300 - 300 °F	Average value: 5.03 GPa Grade Count:1
Flexural Yield Strength	54.0 - 193 MPa	7830 - 28000 psi	Average value: 124 MPa Grade Count:12
Flexural Modulus	2.50 - 5.54 GPa	363 - 804 ksi	Average value: 3.37 GPa Grade Count:12
Flexural Strain at Break	1.40 - 6.00 %	1.40 - 6.00 %	Average value: 3.26 % Grade Count:7
Compressive Yield Strength	90.6 - 207 MPa	13100 - 30000 psi	Average value: 117 MPa Grade Count:9
Compressive Modulus	2.12 - 5.86 GPa	307 - 850 ksi	Average value: 2.86 GPa Grade Count:6
Poissons Ratio	0.330 - 0.450	0.330 - 0.450	Average value: 0.390 Grade Count:4
Shear Modulus	1.17 - 1.57 GPa	170 - 228 ksi	Average value: 1.44 GPa Grade Count:3
Izod Impact, Notched	0.220 - 0.630 J/cm	0.412 - 1.18 ft-lb/in	Average value: 0.399 J/cm Grade Count:8
Izod Impact, Unnotched	0.470 - 30.8 J/cm	0.881 - 57.7 ft-lb/in	Average value: 8.66 J/cm Grade Count:5
Charpy Impact Unnotched	2.20 - 1000 J/cm²	10.5 - 4760 ft-lb/in²	Average value: 4.87 J/cm² Grade Count:8
	1.80 - 999.9 J/cm² @Temperature -30.0 - -30.0 °C	8.57 - 4759 ft-lb/in² @Temperature -22.0 - -22.0 °F	Average value: 3.72 J/cm² Grade Count:7
Charpy Impact, Notched	0.450 - 0.550 J/cm²	2.14 - 2.62 ft-lb/in²	Average value: 0.488 J/cm² Grade Count:8
	0.400 - 0.500 J/cm² @Temperature -30.0 - -30.0 °C	1.90 - 2.38 ft-lb/in² @Temperature -22.0 - -22.0 °F	Average value: 0.457 J/cm² Grade Count:7
Coefficient of Friction	0.173 - 0.186	0.173 - 0.186	Average value: 0.177 Grade Count:3
Coefficient of Friction, Static	0.262 - 0.285	0.262 - 0.285	Average value: 0.270 Grade Count:3

Electrical Properties	Metric	English	Comments
Electrical Resistivity	3820 - 1.00e+16 ohm-cm	3820 - 1.00e+16 ohm-cm	Average value: 2.73e+15 ohm-cm Grade Count:10
Surface Resistance	8.43 - 2.00e+16 ohm	8.43 - 2.00e+16 ohm	Average value: 8.57e+15 ohm Grade Count:6
Dielectric Constant	2.50 - 3.32	2.50 - 3.32	Average value: 2.95 Grade Count:13
Dielectric Strength	23.6 - 84.0 kV/mm	599 - 2130 kV/in	Average value: 47.8 kV/mm Grade Count:4
Dissipation Factor	0.00300 - 0.00400	0.00300 - 0.00400	Average value: 0.00363 Grade Count:6

Thermal Properties	Metric	English	Comments
CTE, linear	21.0 - 77.0 µm/m-°C	11.7 - 42.8 µin/in-°F	Average value: 42.8 µm/m-°C Grade Count:5
	34.74 - 59.22 µm/m-°C @Temperature 30.0 - 150 °C	19.30 - 32.90 µin/in-°F @Temperature 86.0 - 302 °F	Average value: 46.5 µm/m-°C Grade Count:4
Thermal Conductivity	0.250 - 0.470 W/m-K	1.74 - 3.26 BTU-in/hr-ft²-°F	Average value: 0.329 W/m-K Grade Count:4
Melting Point	300 - 360 °C	572 - 680 °F	Average value: 318 °C Grade Count:7
Maximum Service Temperature, Air	149 - 300 °C	300 - 572 °F	Average value: 228 °C Grade Count:7
Deflection Temperature at 0.46 MPa (66 psi)	150 - 277 °C	302 - 531 °F	Average value: 170 °C Grade Count:7
Deflection Temperature at 1.8 MPa (264 psi)	139 - 185 °C	282 - 365 °F	Average value: 157 °C Grade Count:18
Glass Transition Temp, Tg	149 - 160 °C	300 - 320 °F	Average value: 156 °C Grade Count:11
Flammability, UL94	V-0	V-0	Grade Count:5
Smoke Density	10.0	10.0	Average value: 10.0 Grade Count:3
Oxygen Index	35.0 - 40.0 %	35.0 - 40.0 %	Average value: 37.5 % Grade Count:11

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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