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Material type
Plastic
Material name
PP
Process compatibility
CNC machining
Polypropylene (PP) is a thermoplastic polymer resin which has a tough, rigid and crystalline structure from a propene monomer. It’s the second most widely produced plastic (after PE) and is harder and more heat resistant than PE. It has many uses from commercial to industrial applications.
Mechanical properties
Ultimate tensile strength
23 - 33 MPa
Yield strength
30 - 32 MPa
Young's modulus
(modulus of elasticity)
(modulus of elasticity)
0.9 - 1.6 GPa
Elongation at break
8 - 12 %
Hardness
65 - 102 HRR
Physical properties
UV resistance
Poor
Thermal properties
Maximum service temperature
80 - 130 °C
Thermal expansion coefficent
6 - 17 10^-6/ºC
Thermal conductivity
0.22 - 0.27 W/(m⋅°C)
Electrical properties
ESD Safety
No
Common applications
Packaging
Consumer products
Medical applications