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Material type
Plastic
Material name
PTFE
Process compatibility
CNC machining
Polytetrafluoroethylene (PTFE) is a high performance, low friction engineering plastic with exceptional resistance to a wide variety of chemicals. It has a very high melting point, and even though its other mechanical properties are low compared to other engineering plastics, its high chemical resistance and melting point results in its wide adoption in a variety of applications.
David Mechanical Engineering Lead at Protolabs Network
Mechanical properties
Ultimate tensile strength
25 - 31 MPa
Yield strength
14 - 41.4 MPa
Young's modulus
(modulus of elasticity)
(modulus of elasticity)
0.39 - 2.25 GPa
Elongation at break
300 - 450 %
Hardness
50 - 65 Shore D
Physical properties
UV resistance
Good
Thermal properties
Maximum service temperature
250 - 270 °C
Thermal expansion coefficent
7 - 20 10^-6/ºC
Thermal conductivity
0.23 - 0.5 W/(m⋅°C)
Electrical properties
ESD Safety
No
Common applications
Chemical engineering
General machinery construction
Electrical applications
Food industry;