Victrex PEEK Data Sheet 450G

Physical Properties Metric English Comments
Density 1.3 g/cc 0.047 lb/in  ASTM D792
Water Absorption 0.5 % 0.5 %  24 hrs; ASTM D570
Moisture Absorption at Equilibrium 0.5 % 0.5 %  
Moisture Vapor Transmission 6.5 cc-mm/m-24hr-atm 16.5 cc-mil/100 in-24hr-atm  g/m^2/atm/24 hr measured on a 0.1mm sample
Oxygen Transmission 55 cc-mm/m-24hr-atm 140 cc-mil/100 in-24hr-atm  cc/m^2/atm/24 hr measured on a 0.1mm sample
Linear Mold Shrinkage 0.007 cm/cm 0.007 in/in  
Linear Mold Shrinkage, Transverse 0.012 cm/cm 0.012 in/in  
Melt Flow 4 g/10 min 4 g/10 min  400C/2.16 kg
Spiral Flow 11 cm 4.33 in  1 mm thickness, recommended processing conditions

Mechanical Properties
Hardness, Rockwell M 99 99  
Hardness, Rockwell R 126 126  
Tensile Strength, Yield 97 MPa 14100 psi  
Elongation at Break Min 60 % Min 60 %  
Elongation at Yield 5 % 5 %  
Modulus of Elasticity 3.5 GPa 508 ksi  
Flexural Modulus 4.1 GPa 595 ksi  
Flexural Yield Strength 170 MPa 24700 psi  
Compressive Yield Strength 118 MPa 17100 psi  
Poisson's Ratio 0.4 0.4  
Shear Modulus 1.3 GPa 189 ksi  
Shear Strength 53 MPa 7690 psi  
Izod Impact, Notched 0.63 J/cm 1.18 ft-lb/in  
Izod Impact, Unnotched NB NB  
Charpy Impact, Notched 3.4 J/cm 16.2 ft-lb/in  
Coefficient of Friction 0.34 0.34  Dynamic

Electrical Properties
Electrical Resistivity 4.9e+016 ohm-cm 4.9e+016 ohm-cm  
Dielectric Constant 3.3 3.3  1 MHz
Dielectric Constant, Low Frequency 2.8 2.8  1 KHz
Dissipation Factor 0.004 0.004  1 MHz
Dissipation Factor, Low Frequency 0.001 0.001  1 KHz
Comparative Tracking Index 150 V 150 V  

Thermal Properties
CTE, linear 20C 47 m/m-C 26.1 in/in-F  
CTE, linear 100C 47 m/m-C 26.1 in/in-F  
CTE, linear 250C 94 m/m-C 52.2 in/in-F  
Heat Capacity 2.16 J/g-C 0.516 BTU/lb-F  
Thermal Conductivity 0.25 W/m-K 1.74 BTU-in/hr-ft-F  
Melting Point 340 C 644 F  
Maximum Service Temperature, Air 315 C 599 F  
Deflection Temperature at 1.8 MPa (264 psi) 160 C 320 F  
Brittleness Temperature -65 C -85 F  
Glass Temperature 143 C 289 F  
UL RTI, Electrical 260 C 500 F  
UL RTI, Mechanical with Impact 180 C 356 F  
UL RTI, Mechanical without Impact 240 C 464 F  
Flammability, UL94 V-0 V-0  
Oxygen Index 35 % 35 %