Plastic PTFE

Plastic PTFE (Teflon) strength, stiffness, density and thermal properties, with their source.

A bracket in Plastic PTFE, smooth finish.

Mechanical
Process	Bulk polymer (molded or machined)
Yield strength	9MPasourcetypical yield strength at 23 °C (Teflon PTFE, Table 8)
Ultimate tensile strength	39.3MPasourcetypical, skived tape 0.13 mm
Elongation at break	350%sourcetypical, skived tape 0.13 mm
Young's modulus (stiffness)	not sourced
Density	2,160kg/m³sourcetypical (standard specific gravity, ASTM D4894)
Strength to weight	4.17kN·m/kg
Stiffness to weight	not sourced
Poisson's ratio	0.46sourcetypical, 23 °C (Teflon PTFE resins, Chemours handbook)
Shear modulus	not sourced
Bulk modulus	not sourced
Speed of sound	not sourced
Thermal
Thermal conductivity	0.25W/m·Ksourcetypical, granular resin, 4.6 mm specimen
Thermal expansion	100µm/m·Ksourcetypical, granular resin, 23-60 °C (ASTM E228)
100 mm part over a 50 °C swing	500µm growth
Specific heat	1,400J/kg·Ksourcetypical, granular resin, 20 °C (ASTM D4591)
Heats up and cools (diffusivity)	0.0827mm²/s
Thermal shock resistance	not sourced
Melting point	327°Csourcesecond melting peak (sintered polymer), +/-10
Max service temperature	260°Csourceservice temperature (Chemours general Teflon PTFE statement)
Values for	Chemours Teflon PTFE 7C X granular molding resin, typical values (tensile/elongation measured on 0.13 mm skived tape)

Among 59 materials

Stiffness against density

Strength against density